Dental assembly

Abstract

The utility model discloses a dental component which comprises a first matching structure arranged corresponding to the tongue side or the cutting end of anterior teeth of an upper jaw and a second matching structure arranged corresponding to the lip side or the cutting end of anterior teeth of a lower jaw, and the first matching structure and the second matching structure are configured as follows: when the upper jaw and the lower jaw are occluded, the first matching structure is matched with the second matching structure; the first matching structure and the second matching structure abut against each other to generate force or moment, and the force or moment at least comprises lip tilting force corresponding to the anterior teeth of the upper jaw or lip tilting moment corresponding to the anterior teeth of the upper jaw. In the correction process, at least the maxillary anterior teeth generate lip inclination, firstly, the relative positions of the maxillary anterior teeth and the alveolar bone can be gradually adjusted, so that the maxillary anterior teeth are suitable for being pressed down; on the second aspect, the gap between the upper jaw anterior teeth and the lower jaw anterior teeth can be enlarged so that the first matching structure and the second matching structure can be conveniently installed and designed; and thirdly, the anterior teeth of the upper jaw have certain inclination, so that the anterior teeth of the lower jaw can interact with the anterior teeth of the lower jaw conveniently, and the anterior teeth can be depressed, adducted and the like conveniently.

Description

Technical Field

[0001] This utility model relates to the field of orthodontic technology, and in particular to a dental component. Background Technology

[0002] In the field of orthodontics, effectively opening the anterior occlusion and treating deep overbite has always been a challenge in orthodontics. There are different methods for correcting deep overbite, such as intruding the anterior teeth, elongating or straightening the posterior teeth, labializing the anterior teeth, and combining intruding the anterior teeth with elongating the posterior teeth.

[0003] Currently, micro-screw implants are commonly used in clinical practice to increase anchorage and treat deep overbite of anterior teeth. However, this method has problems such as poor effect on labial anterior teeth, poor stability of micro-screw implants, and easy damage to anterior tooth roots and anterior gingiva.

[0004] Therefore, a stable and efficient method is needed in clinical practice to solve this problem. Utility Model Content

[0005] The purpose of this invention is to provide a dental component that helps to stably and efficiently solve the problem of deep overbite.

[0006] This utility model provides a dental component, including a first mating structure disposed on the lingual side or incisal edge of the maxillary anterior teeth and a second mating structure disposed on the labial side or incisal edge of the mandibular anterior teeth. The first mating structure and the second mating structure are configured such that when the maxilla and mandible occlude, the first mating structure and the second mating structure abut against each other to generate a force or torque, wherein the force or torque includes at least the labial inclination force of the maxillary anterior teeth or the labial inclination torque of the maxillary anterior teeth.

[0007] Optionally, the force or torque may also include the indentation force of the corresponding upper and lower anterior teeth.

[0008] Optionally, the force or torque may also include the labial inclination force or the labial inclination torque of the corresponding mandibular anterior teeth.

[0009] Optionally, the first impedance center of the maxillary anterior teeth is located on the lingual side of the line of action of the mate force, and the second impedance center of the mandibular anterior teeth is located on the lingual side of the line of action of the mate force or on the line of action of the mate force, wherein the line of action of the mate force is defined by the contact surface formed by the mutual contact of the first mating structure and the second mating structure.

[0010] Optionally, the resultant force line forms a first projection line at the first reference plane, the first projection point of the first impedance center defined by the maxillary anterior teeth at the first reference plane is located on the first side of the first projection line, the second projection point of the second impedance center defined by the mandibular anterior teeth at the first reference plane is located on the first side of the first projection line or on the first projection line, the resultant force line passes through the geometric center or force center of the contact surface formed by the first mating structure and the second mating structure, the first side includes the incisal edge of the mandibular anterior teeth, the first reference plane is parallel to the sagittal plane, or the first reference plane passes through the resultant force line and extends along the labial and lingual direction.

[0011] Optionally, the resultant force line forms a first projection line at the first reference plane, and the impedance center connecting segment forms a first projection line segment at the first reference plane. The first projection line and the first projection line segment have no intersection point or intersect only at the endpoint of the first projection line segment corresponding to the mandibular anterior tooth. The resultant force line passes through the geometric center or force center of the contact surface formed by the first mating structure and the second mating structure. The two endpoints of the impedance center connecting segment are the first impedance center defined by the maxillary anterior tooth and the second impedance center defined by the mandibular anterior tooth, respectively. The first reference plane is parallel to the sagittal plane, or the first reference plane passes through the resultant force line and extends along the labial-lingual direction.

[0012] Optionally, the geometric center or force center of the abutment surface is located on the labial side of the line segment connecting the impedance centers. The abutment surface is the contact surface formed by the first mating structure and the second mating structure abutting each other. The two endpoints of the line segment connecting the impedance centers are the first impedance center defined by the maxillary anterior teeth and the second impedance center defined by the mandibular anterior teeth, respectively.

[0013] Optionally, the impedance center connecting segment forms a second projection segment at the second reference plane, and the second projection point of the geometric center or force center of the abutment surface at the second reference plane is located on the second side of the second projection segment. The two endpoints of the impedance center connecting segment are the first impedance center defined by the maxillary anterior teeth and the second impedance center defined by the mandibular anterior teeth, respectively. The abutment surface is the contact surface formed by the mutual abutment of the first mating structure and the second mating structure. The second reference plane is parallel to the sagittal plane. Alternatively, the second reference plane is determined by the geometric center or force center of the abutment surface, the first impedance center, and the second impedance center. Alternatively, the second reference plane passes through at least one of the geometric center or force center of the abutment surface, the first impedance center, and the second impedance center and extends in the labial-lingual direction. The second side includes the incisal edge of the mandibular anterior teeth.

[0014] This utility model provides a dental component, including a first mating structure disposed on the lingual side or incisal edge of the maxillary anterior teeth and a second mating structure disposed on the labial side or incisal edge of the mandibular anterior teeth. The first impedance center of the maxillary anterior teeth is located on the lingual side of the line of action of the resultant force, and the second impedance center of the mandibular anterior teeth is located on the lingual side of the line of action of the resultant force or on the line of action of the resultant force. The line of action of the resultant force is defined by the contact surface formed by the mutual contact of the first mating structure and the second mating structure.

[0015] Optionally, the resultant force line forms a first projection line at the first reference plane, the first projection point of the first impedance center defined by the maxillary anterior teeth at the first reference plane is located on the first side of the first projection line, the second projection point of the second impedance center defined by the mandibular anterior teeth at the first reference plane is located on the first side of the first projection line or on the first projection line, the resultant force line passes through the geometric center or force center of the abutment surface, the first side includes the incisal edge of the mandibular anterior teeth, the first reference plane is parallel to the sagittal plane, or the first reference plane passes through the resultant force line and extends along the labial-lingual direction.

[0016] Optionally, there is a vertical distance between the first projection point and the first projection line, and the dental components of the Nth orthodontic step and the N+Mth orthodontic step have a first vertical distance and a second vertical distance, respectively. The first vertical distance is not less than the second vertical distance, and N and M are both positive integers.

[0017] Optionally, the second projection point has a vertical distance from the first projection line, and the dental components of the Nth orthodontic step and the N+Mth orthodontic step have a third vertical distance and a fourth vertical distance, respectively. The third vertical distance is not greater than the fourth vertical distance, and N and M are both positive integers.

[0018] This utility model provides a dental component, including a first mating structure disposed on the lingual side or incisal edge corresponding to the maxillary anterior teeth and a second mating structure disposed on the labial side or incisal edge corresponding to the mandibular anterior teeth. The geometric center or force center of the abutment surface is located on the labial side of the line segment connecting the impedance centers. The abutment surface is the contact surface formed by the first mating structure and the second mating structure abutting against each other. The two endpoints of the line segment connecting the impedance centers are the first impedance center defined by the maxillary anterior teeth and the second impedance center defined by the mandibular anterior teeth, respectively.

[0019] Optionally, the resultant force line forms a first projection line at the first reference plane, and the impedance center connecting line segment forms a first projection line segment at the first reference plane. The first projection line and the first projection line segment have no intersection point or only intersect at the endpoint of the corresponding mandibular anterior tooth of the first projection line segment. The resultant force line passes through the geometric center or force center of the contact surface formed by the mutual contact of the first mating structure and the second mating structure. The first reference plane is parallel to the sagittal plane, or the first reference plane passes through the resultant force line and extends along the labial and lingual direction.

[0020] Optionally, the impedance center connecting line segment forms a second projection line segment at the second reference plane, and the third projection point of the geometric center or force center of the abutment surface at the second reference plane is located on the second side of the second projection line segment. The second reference plane is parallel to the sagittal plane. Alternatively, the second reference plane is determined by the geometric center or force center of the abutment surface, the first impedance center, and the second impedance center. Alternatively, the second reference plane passes through at least one of the geometric center or force center of the abutment surface, the first impedance center, and the second impedance center and extends in the labial-lingual direction. The second side includes the incisal edge of the maxillary anterior teeth.

[0021] Optionally, the third projection point has a vertical distance from the second projection line segment, and the dental components of the Nth orthodontic step and the N+Mth orthodontic step have a first vertical distance and a second vertical distance, respectively. The second vertical distance is not less than the first vertical distance, and N and M are both positive integers.

[0022] This utility model provides a dental component, including a first mating structure disposed on the lingual or incisal side corresponding to the maxillary anterior teeth and a second mating structure disposed on the labial or incisal side corresponding to the mandibular anterior teeth. The resultant force line forms a first projection line at a first reference plane, and the impedance center connecting segment forms a first projection line segment at the first reference plane. The first projection line and the first projection line segment have no intersection point or intersect only at the endpoint of the first projection line segment corresponding to the mandibular anterior teeth. The resultant force line passes through the geometric center or force center of the contact surface formed by the mutual contact of the first mating structure and the second mating structure. The two endpoints of the impedance center connecting segment are respectively the first impedance center defined by the maxillary anterior teeth and the second impedance center defined by the mandibular anterior teeth. The first reference plane is parallel to the sagittal plane, or the first reference plane passes through the resultant force line and extends along the labial and lingual direction.

[0023] Optionally, the first mating structure corresponds to the Nth maxillary anterior tooth or the adjacent tooth space connecting the Nth maxillary anterior tooth, and the second mating structure corresponds to the Mth mandibular anterior tooth or the adjacent tooth space connecting the Mth mandibular anterior tooth.

[0024] Optionally, the first impedance center is the impedance center of the Nth maxillary anterior tooth or the two impedance centers of the Nth maxillary anterior tooth and the N'th maxillary anterior tooth located on both sides of the interdental space; the second impedance center is the impedance center of the Mth mandibular anterior tooth or the two impedance centers of the Mth mandibular anterior tooth and the M'th mandibular anterior tooth located on both sides of the interdental space.

[0025] Optionally, when the contact surface is a plane, the line of action of the resultant force is perpendicular to the plane; when the contact surface is a curved surface, the line of action of the resultant force is perpendicular to the tangent of the curved surface, and the tangent passes through the force center of the curved surface.

[0026] Optionally, the line of action of the resultant force forms a first acute angle with the long axis of the first tooth of the maxillary anterior tooth, and the first acute angle of the dental component in the Nth orthodontic step is not less than the first acute angle of the dental component in the N+Mth orthodontic step.

[0027] Optionally, the line of action of the resultant force forms a second acute angle with the long axis of the second tooth of the mandibular anterior tooth, and the second acute angle of the dental component in the Nth orthodontic step is not less than the second acute angle of the dental component in the N+Mth orthodontic step.

[0028] Optionally, in the Nth orthodontic step, the first and second mating structures abut against each other to generate a first torque, and in the N+Mth orthodontic step, the first and second mating structures abut against each other to generate a second torque. The first torque includes only the maxillary labial tilt torque or the first torque includes both the maxillary labial tilt torque and the mandibular labial tilt torque, and the second torque includes both the maxillary labial tilt torque and the mandibular labial tilt torque. N and M are both positive integers.

[0029] Optionally, the absolute value of the lever arm corresponding to the maxillary inclination torque in the first torque is not less than the absolute value of the lever arm corresponding to the maxillary inclination torque in the second torque.

[0030] Optionally, the absolute value of the lever arm corresponding to the mandibular tilting torque in the first torque is not greater than the absolute value of the lever arm corresponding to the mandibular tilting torque in the second torque.

[0031] Optionally, at least some dental components for different orthodontic steps have first and second mating structures with different parameters. The first and second mating structures for different orthodontic steps correspond to the same tooth region. The parameters include at least one of the following: the location of the abutment surface formed by the first and second mating structures abutting each other, the shape of the abutment surface, the location of the geometric center or force center of the abutment surface, and the direction of the resultant force line passing through the geometric center or force center. The location of the abutment surface is defined as the spatial location of the abutment surface within the receiving gap, which is a gap formed between the upper and lower jaws to accommodate the first and second mating structures. The shape of the abutment surface includes at least one of the following: the geometric shape of the abutment surface and the extension direction of the abutment surface. The location of the geometric center or force center of the abutment surface is defined as the spatial location of the geometric center or force center of the abutment surface within the receiving gap.

[0032] Optionally, the contact surface is a plane.

[0033] Optionally, one of the first mating structure and the second mating structure is a protrusion extending out of the tooth, and the other is a protrusion extending out of the tooth or a portion that fits against the tooth.

[0034] Optionally, the protrusion is directly connected to the tooth, or the dental assembly further includes a shell having a cavity for accommodating the tooth, the protrusion being connected to the shell.

[0035] Optionally, the portion that conforms to the tooth is the tooth area, or the dental component may further include a shell having a cavity for accommodating the tooth, the portion of which conforms to the tooth being the area of ​​the shell that is in close contact with the tooth.

[0036] Optionally, when the first mating structure and the second mating structure abut against each other, the upper and lower jaws are in a force-applying jaw position, which deviates from a preset jaw position, and the biting force corresponding to the force-applying jaw position is greater than the preset biting force corresponding to the preset jaw position.

[0037] Optionally, the preset jaw position is a resting jaw position, and the preset occlusal force is zero or less than a preset value.

[0038] Optionally, the opening angle of the maxilla and mandible corresponding to the applied jaw position is greater than the opening angle of the maxilla and mandible corresponding to the preset jaw position, and the gap between the maxilla and mandible corresponding to the applied jaw position is greater than the gap between the maxilla and mandible corresponding to the preset jaw position.

[0039] Optionally, the occlusal force corresponding to the applied jaw position is positively correlated with the degree of opening of the upper and lower jaws, and the degree of opening includes the opening angle of the upper and lower jaws or the gap between the upper and lower jaws.

[0040] Compared with the prior art, the beneficial effects of this utility model are as follows: In the orthodontic process, the embodiments of this utility model at least cause the maxillary anterior teeth to labially tilt. Firstly, the relative position of the maxillary anterior teeth and alveolar bone can be gradually adjusted to make the maxillary anterior teeth suitable for intrusion. Secondly, the gap between the maxillary anterior teeth and the mandibular anterior teeth can be increased to facilitate the installation design of the first and second mating structures. Thirdly, the maxillary anterior teeth have a certain degree of inclination, which facilitates interaction with the mandibular anterior teeth and facilitates the intrusion and retraction of the anterior teeth.

[0041] During the treatment of deep overbite, if the mandibular anterior teeth become lingually inclined, it will worsen the deep overbite. If the maxillary anterior teeth become lingually inclined, it will cause the maxillary anterior teeth and mandibular anterior teeth to interfere with each other. In this embodiment, the first mating structure is set on the lingual side of the maxillary anterior teeth and the second mating structure is set on the labial side of the mandibular anterior teeth. By reasonably designing the first and second mating structures, the maxillary anterior teeth can be labially inclined and the mandibular anterior teeth can be kept from lingually inclined, which can effectively avoid the aggravation of deep overbite.

[0042] This method can not only cause labial inclination of the maxillary anterior teeth (or labial inclination of the mandibular anterior teeth) during the orthodontic process, but also cause intrusion and retraction of the maxillary and mandibular anterior teeth. For example, when the teeth are labially inclination, they will be intruded or retracted. The relative position between the labially inclination teeth and the alveolar bone is more suitable for the intrusion or retraction of the teeth, thereby accelerating the resolution of deep overbite problems. Attached Figure Description

[0043] Figure 1 This is a schematic diagram of a dental component according to an embodiment of the present invention;

[0044] Figure 2 This is a schematic diagram showing the two protrusions abutting against each other in an embodiment (first form) of this utility model;

[0045] Figure 3 This is a schematic diagram showing the protrusion and the part that fits the teeth abutting against each other in the second embodiment of this utility model.

[0046] Figure 4 This is a schematic diagram of the force-applying jaw position and the preset jaw position according to the embodiment of this utility model;

[0047] Figure 5 This is a schematic diagram showing the mutual contact between the first mating structure and the second mating structure in the first implementation of this utility model;

[0048] Figure 6a This is a schematic diagram showing the first and second mating structures abutting against each other in the second implementation of this utility model;

[0049] Figure 6b yes Figure 6aA schematic diagram of the dental components projected onto the first reference plane;

[0050] Figure 7 yes Figure 6a A schematic diagram showing the dental components in two different orthodontic steps;

[0051] Figure 8a This is a schematic diagram showing the first and second mating structures abutting against each other in the third implementation of this utility model;

[0052] Figure 8b yes Figure 8a A schematic diagram of the dental components projected onto the first reference plane;

[0053] Figure 9 This is a schematic diagram showing the first and second mating structures abutting against each other in the fourth implementation of this utility model;

[0054] Figure 10a This is a schematic diagram showing the first and second mating structures abutting against each other in the fifth implementation of this utility model;

[0055] Figure 10b yes Figure 10a A schematic diagram of the dental components projected onto the second reference plane;

[0056] Figure 11 yes Figure 10a A schematic diagram showing the dental components in two different orthodontic steps;

[0057] Figure 12 This is a schematic diagram showing that the first mating structure and the second mating structure are located in different regions according to an embodiment of this utility model;

[0058] Figure 13 This is a schematic diagram of the dental component of the first design of this utility model in two different orthodontic steps;

[0059] Figure 14 This is a schematic diagram of a dental component of the second design of this utility model in two different orthodontic steps;

[0060] Figure 15 This is a schematic diagram of the various parameters of the dental component according to an embodiment of the present invention. Detailed Implementation

[0061] The present invention will now be described in detail with reference to the specific embodiments shown in the accompanying drawings. However, these embodiments do not limit the present invention, and any structural, methodological, or functional modifications made by those skilled in the art based on these embodiments are included within the protection scope of the present invention.

[0062] Combination Figure 1 and Figure 2 This is a schematic diagram of the dental component 100 according to an embodiment of the present invention.

[0063] The dental component 100 includes a first mating structure 10 provided on the lingual or incisal edge Q1 corresponding to the maxillary anterior tooth T1 and a second mating structure 20 provided on the labial or incisal edge Q2 corresponding to the mandibular anterior tooth T2.

[0064] The first mating structure 10 and the second mating structure 20 are configured such that when the upper and lower jaws occlude, the first mating structure 10 and the second mating structure 20 abut against each other to generate a force or torque. The force or torque includes at least the labial inclination force corresponding to the maxillary anterior tooth T1 or the labial inclination torque M1 corresponding to the maxillary anterior tooth T1. The labial inclination force or labial inclination torque M1 can cause the maxillary anterior tooth T1 to inclinate labially.

[0065] In cases of deep overbite, the maxillary anterior tooth T1 covers at least part of the mandibular anterior tooth T2. It is necessary to indent the maxillary anterior tooth T1 and the mandibular anterior tooth T2 to improve the deep overbite. However, the maxillary anterior tooth T1 and the mandibular anterior tooth T2 are usually relatively vertical in their initial state. The initial relative positions of the maxillary anterior tooth T1, the mandibular anterior tooth T2 and the alveolar bone are not suitable for direct absolute indentation of the maxillary anterior tooth T1 and the mandibular anterior tooth T2. Therefore, it is necessary to first adjust the relative positions of the maxillary anterior tooth T1 and the alveolar bone as well as the relative positions of the mandibular anterior tooth T2 and the alveolar bone.

[0066] In this embodiment, at least the maxillary anterior tooth T1 is labially tilted during the orthodontic process. Firstly, the relative position of the maxillary anterior tooth T1 and the alveolar bone can be gradually adjusted to make the maxillary anterior tooth T1 suitable for intrusion. Secondly, the gap between the maxillary anterior tooth T1 and the mandibular anterior tooth T2 can be increased to facilitate the installation design of the first mating structure 10 and the second mating structure 20. Thirdly, the maxillary anterior tooth T1 has a certain inclination to facilitate interaction with the mandibular anterior tooth T2, which facilitates the intrusion and retraction of the maxillary and mandibular anterior teeth.

[0067] During the treatment of deep overbite, if the mandibular anterior tooth T2 becomes lingually inclined, it will worsen the deep overbite. If the maxillary anterior tooth T1 becomes lingually inclined, it will cause the maxillary anterior tooth T1 and the mandibular anterior tooth T2 to interfere with each other. In this embodiment, the first mating structure 10 is set on the lingual side of the maxillary anterior tooth T1, and the second mating structure 20 is set on the labial side of the mandibular anterior tooth T2. By reasonably designing the first mating structure 10 and the second mating structure 20, the maxillary anterior tooth T1 can be labially inclined and the mandibular anterior tooth T2 can not be lingually inclined, which can effectively avoid the aggravation of deep overbite.

[0068] Optionally, the force or torque may also include the labial inclination force corresponding to the mandibular anterior tooth T2 or the labial inclination torque M2 corresponding to the mandibular anterior tooth T2.

[0069] In this implementation method, the mandibular anterior tooth T2 is labially tilted during the orthodontic process. Firstly, the relative position of the mandibular anterior tooth T2 and the alveolar bone can be gradually adjusted to make the mandibular anterior tooth T2 suitable for intrusion. Secondly, it can avoid the aggravation of deep overbite caused by the lingual tilt of the mandibular anterior tooth T2. Thirdly, the mandibular anterior tooth T2 has a certain degree of inclination, which facilitates its interaction with the maxillary anterior tooth T1, making it easier to achieve intrusion and retraction of the maxillary and maxillary anterior teeth.

[0070] Optionally, the labial inclination of the maxillary anterior teeth T1 and the labial inclination of the mandibular anterior teeth T2 can be generated in the same orthodontic step or in different orthodontic steps, depending on the different orthodontic needs of each orthodontic step.

[0071] Optionally, the force or torque may also include the indentation force of the corresponding upper and lower anterior teeth, which can cause the upper and lower anterior teeth to be indented or retracted.

[0072] This method can not only cause labial inclination of the maxillary anterior teeth T1 (or labial inclination of the mandibular anterior teeth T2) during the orthodontic process, but also cause intrusion and retraction of the maxillary and mandibular anterior teeth. For example, when the teeth are labially inclinated, they will be intruded or retracted. The relative position between the teeth and alveolar bone after labial inclination is more suitable for the realization of intrusion or retraction of the teeth, thereby accelerating the resolution of deep overbite problems.

[0073] Optional, combined Figure 2 and Figure 3 One of the first mating structure 10 and the second mating structure 20 is a protruding portion A1 that protrudes from the tooth, and the other is either a protruding portion A1 that protrudes from the tooth or a portion A2 that fits against the tooth.

[0074] The protrusion A1 is directly connected to the tooth, or the dental component 100 also includes shells 101 and 102 having cavities S1 and S2 for accommodating the tooth, with the protrusion A1 connected to the shells 101 and 102.

[0075] The protrusion A1 refers to the protruding structure that protrudes from the teeth (or shell-like structures 101, 102).

[0076] Shells 101 and 102 are invisible aligners that match the teeth. Shells 101 and 102 can be a first shell 101 that matches the maxillary teeth and / or a second shell 102 that matches the mandibular teeth. Cavities S1 and S2 can be a first cavity S1 formed by the first shell 101 to accommodate the maxillary teeth and / or a second cavity S2 formed by the second shell 102 to accommodate the mandibular teeth.

[0077] The portion A2 that fits against the teeth is the tooth area, or the portion A2 that fits against the teeth is the area where the shell-like bodies 101 and 102 are in close contact with the teeth.

[0078] The part A2 that fits the tooth refers to the area where the tooth itself or the shell 101, 102 is in close contact with the tooth. The tooth itself is, for example, the incisal edge of the anterior tooth, the labial surface of the anterior tooth, or the lingual surface of the anterior tooth.

[0079] The following describes several forms of the first mating structure 10 and the second mating structure 20.

[0080] In the first form, combination Figure 2 Both the first mating structure 10 and the second mating structure 20 are protrusions A1, and the two protrusions A1 are respectively connected to the first shell 101 and the second shell 102.

[0081] Specifically, the dental component 100 includes a first shell 101 and a second shell 102. The first shell 101 has a first cavity S1 for accommodating the maxillary tooth T1, and the second shell 102 has a second cavity S2 for accommodating the mandibular tooth T2.

[0082] The first mating structure 10 is located on the tongue side of the first shell 101 and protrudes from the first shell 101. The first mating structure 10 is integrally formed with the first shell 101, or the first mating structure 10 is an independent structure assembled to the first shell 101.

[0083] The second mating structure 20 is located on the lip side of the second shell 102 and protrudes from the second shell 102. The second mating structure 20 is integrally formed with the second shell 102, or the second mating structure 20 is an independent structure assembled to the second shell 102.

[0084] In other forms, both the first mating structure 10 and the second mating structure 20 are protrusions A1. Both protrusions A1 can be directly connected to the teeth, or one of the two protrusions A1 can be directly connected to the teeth, while the other is connected to the first shell 101 or the second shell 102.

[0085] In the second form, combined Figure 3 One of the first mating structure 10 and the second mating structure 20 is a protrusion A1, and the other is a tooth-fitting portion A2. The protrusion A1 is connected to the first shell 101, and the tooth-fitting portion A2 is the area of ​​the second shell 102 corresponding to the cutting end Q2.

[0086] Specifically, taking the first mating structure 10 as the protruding part A1 and the second mating structure 20 as the part A2 that fits the tooth as an example, the dental component 100 includes a first shell 101 and a second shell 102. The first shell 101 has a first cavity S1 for accommodating the maxillary tooth T1, and the second shell 102 has a second cavity S2 for accommodating the mandibular tooth T2.

[0087] The first mating structure 10 is located on the tongue side of the first shell 101 and protrudes from the first shell 101. The first mating structure 10 is integrally formed with the first shell 101, or the first mating structure 10 is an independent structure assembled to the first shell 101.

[0088] The second mating structure 20 is the region of the second shell 102 corresponding to the incisal edge Q2 of the mandibular anterior tooth T2, and the second mating structure 20 is closely attached to the incisal edge Q2 of the mandibular anterior tooth T2.

[0089] In other forms, one of the first mating structure 10 and the second mating structure 20 is a protrusion A1, and the other is a portion A2 that conforms to the tooth. The protrusion A1 is directly connected to the tooth and the portion A2 that conforms to the tooth is a tooth region. Alternatively, the protrusion A1 is directly connected to the tooth and the portion A2 that conforms to the tooth is a region where the shells 101 and 102 are in close contact with the tooth. Alternatively, the protrusion A1 is connected to the shells 101 and 102 and the portion A2 that conforms to the tooth is a tooth region.

[0090] For ease of explanation, the following description will be based on the example where both the first mating structure 10 and the second mating structure 20 are protrusions A1, and the two protrusions A1 are respectively connected to the first shell 101 and the second shell 102.

[0091] Optional, combined Figure 4 When the first mating structure 10 and the second mating structure 20 abut against each other, the upper and lower jaws are in the force-applying jaw position Y1. The force-applying jaw position Y1 deviates from the preset jaw position Y, and the occlusal force corresponding to the force-applying jaw position Y1 is greater than the preset occlusal force corresponding to the preset jaw position Y.

[0092] The force-applying jaw position Y1 can be, for example, raised by the mutual abutment of the first mating structure 10 and the second mating structure 20, so that the force-applying jaw position Y1 formed between the upper and lower jaws deviates from the preset jaw position Y before the elevation. The relatively higher force-applying jaw position Y1 corresponds to a relatively larger occlusal force.

[0093] The preset jaw position Y can be a custom jaw position or a specific jaw position. The preset jaw position Y has a relatively small preset occlusal force, while the applied jaw position Y1 has a relatively large occlusal force. The occlusal force generated by the applied jaw position Y1 can at least control the maxillary anterior tooth T1 to generate labial inclination force or labial inclination moment M1.

[0094] Optionally, the preset jaw position Y can be the resting jaw position.

[0095] The resting jaw position can be defined as the position that the upper and lower jaws automatically find when they are in a normal relaxed state. For example, when the mouth is not chewing, swallowing, or speaking, the lower jaw is in a resting state, and the dental arches of the upper and lower jaws are naturally separated. The jaw position at this time is called the resting jaw position, and the preset occlusal force is zero.

[0096] The resting jaw position can also be a jaw position with a small biting force between the upper and lower jaws. For example, the jaw position when the preset biting force is less than the preset value is called the resting jaw position.

[0097] Optionally, the opening angle of the maxilla and mandible corresponding to the applied jaw position Y1 is greater than the opening angle of the maxilla and mandible corresponding to the preset jaw position Y, and the gap between the maxilla and mandible corresponding to the applied jaw position Y1 is greater than the gap between the maxilla and mandible corresponding to the preset jaw position Y.

[0098] The opening angle of the upper and lower jaws can refer to the rotation angle of the lower jaw relative to the upper jaw relative to the closed state.

[0099] The mandibular-maxillary gap can refer to the downward movement of the mandible relative to the maxilla during rotation relative to the maxilla when the mandible is in a closed state.

[0100] The force-applied jaw position Y1 can be seen as a jaw position obtained by further opening based on the preset jaw position Y. Therefore, the force-applied jaw position Y1 has a larger opening angle and intermaxillary space compared to the preset jaw position Y.

[0101] Optionally, the occlusal force corresponding to the applied jaw position Y1 is positively correlated with the degree of opening of the upper and lower jaws, which includes the opening angle of the upper and lower jaws or the gap between the upper and lower jaws.

[0102] When the upper and lower jaws open, the jaw muscles are released to form a force state. The force state allows the first mating structure 10 and the second mating structure 20 to abut against each other and generate force (i.e., the biting force corresponding to the force-applying jaw position Y1). When the opening angle of the upper and lower jaws or the gap between the upper and lower jaws is large, the greater the degree of release of the jaw muscles, the greater the force generated by the abutting between the first mating structure 10 and the second mating structure 20.

[0103] Optionally, the dental component 100 can be implemented in various forms.

[0104] In the first implementation, combined Figure 5 The first impedance center R1 of the maxillary anterior tooth T1 is located on the lingual side of the line of action L1, and the second impedance center R2 of the mandibular anterior tooth T2 is located on the lingual side of the line of action L1 or on the line of action L1. The line of action L1 is defined by the contact surface C formed by the mutual contact of the first mating structure 10 and the second mating structure 20.

[0105] The contact surface C is the area where the first mating structure 10 and the second mating structure 20 come into contact with each other. The contact surface C can be a plane or a curved surface. The resultant force line L1 is used to characterize the resultant force generated by the mutual contact between the first mating structure 10 and the second mating structure 20. The resultant force line L1 passes through the geometric center O or the force center O of the contact surface C.

[0106] When the contact surface C is a plane, the line of action of the resultant force L1 is perpendicular to the plane and passes through the geometric center O or the center of force O of the plane. When the contact surface C is a curved surface, the line of action of the resultant force L1 is perpendicular to the tangent of the curved surface, and the tangent passes through the center of force O of the curved surface.

[0107] Optionally, when the contact surface C is a plane, the line of action L1 of the resultant force can be defined to pass through the geometric center O or the center of force O of the plane. The geometric center O is defined as the center or centroid of the plane, and the center of force O is defined as the resultant point of all forces acting on the plane. The center of force O can overlap with the geometric center O.

[0108] When the contact surface C is a curved surface, the line of action L1 of the resultant force can be defined to pass through the force center O of the curved surface. The force center O is defined as the resultant point of all forces acting on the curved surface.

[0109] For descriptions of the geometric center and force center in other implementations, please refer to the description in the first implementation; further details will not be provided hereafter.

[0110] Optionally, when the first impedance center R1 of the maxillary anterior tooth T1 is located on the lingual side of the resultant force line L1, the maxillary anterior tooth T1 can generate a non-zero labial tilting force or labial tilting torque M1.

[0111] When the second impedance center R2 of the mandibular anterior tooth T2 is located on the lingual side of the resultant force line L1, the mandibular anterior tooth T2 can generate a non-zero labial tilting force or labial tilting torque M2.

[0112] When the second impedance center R2 of the mandibular anterior tooth T2 is located on the line of action L1 of the resultant force, the labial tilting force or labial tilting moment that the mandibular anterior tooth T2 can generate is zero, and the lingual tilting force or lingual tilting moment that can be generated is also zero.

[0113] In the first implementation, when the first mating structure 10 and the second mating structure 20 abut against each other and generate force, the force acts on the maxillary anterior tooth T1 to produce labial inclination. At the same time, the force acts on the mandibular anterior tooth T2 to also produce labial inclination, or the mandibular anterior tooth T2 neither produces labial inclination nor lingual inclination. The labial and lingual inclination of the maxillary and mandibular anterior teeth can be controlled by controlling the relative positional relationship between the first impedance center R1, the second impedance center R2, and the resultant force line L1.

[0114] In the second implementation, combined Figures 6a to 7 The resultant force line L1 forms a first projection line L1' at the first reference plane P1. The first impedance center R1 defined by the maxillary anterior tooth T1 has a first projection point R1' at the first reference plane P1 located on the first side E1 of the first projection line L1'. The second impedance center R2 defined by the mandibular anterior tooth T2 has a second projection point R2' at the first reference plane P1 located on the first side E1 of the first projection line L1' or located on the first projection line L1'.

[0115] The line of action of the resultant force L1 passes through the geometric center O or the force center O of the contact surface C formed by the first mating structure 10 and the second mating structure 20 abutting each other. The contact surface C is the area where the first mating structure 10 and the second mating structure 20 are in contact with each other. The contact surface C can be a plane or a curved surface. The line of action of the resultant force L1 is used to characterize the resultant force generated by the mutual abutment of the first mating structure 10 and the second mating structure 20.

[0116] The first side E1 includes the incisal edge Q2 of the mandibular anterior tooth T2, and the first side E1 is the right side region of the first projection line L1'.

[0117] The first reference plane P1 is parallel to the sagittal plane, which is a longitudinal section that divides the entire jaw into left and right parts.

[0118] Alternatively, the first reference plane P1 passes through the line of action of the resultant force L1 and extends along the lip-tongue direction X.

[0119] Optionally, when the first projection point R1' is located on the first side E1 of the first projection line L1', the maxillary anterior tooth T1 can generate a non-zero labial tilting force or labial tilting moment M1.

[0120] When the second projection point R2' is located on the first side E1 of the first projection line L1', the mandibular anterior tooth T2 can generate a non-zero labial tilting force or labial tilting moment M2.

[0121] When the second projection point R2' is located on the first projection line L1', the labial tilt force or labial tilt moment that the mandibular anterior tooth T2 can generate is zero, and the lingual tilt force or lingual tilt moment that can generate is also zero.

[0122] In the second implementation, when the first mating structure 10 and the second mating structure 20 abut against each other and generate force, the force acts on the maxillary anterior tooth T1 to produce labial inclination. At the same time, the force acts on the mandibular anterior tooth T2 to also produce labial inclination, or the mandibular anterior tooth T2 neither produces labial inclination nor lingual inclination. The labial and lingual inclination of the maxillary and mandibular anterior teeth can be controlled by controlling the relative positional relationship between the first projection point R1', the second projection point R2', and the first projection line L1'.

[0123] Optionally, in the second implementation, combined with Figure 7 There is a vertical distance between the first projection point R1' and the first projection line L1'. The dental component 100 of the Nth orthodontic step and the dental component 100 of the N+Mth orthodontic step have a first vertical distance H1 and a second vertical distance H2, respectively. The first vertical distance H1 is not less than the second vertical distance H2. N and M are both positive integers.

[0124] The first vertical distance H1 and the second vertical distance H2 can be used to characterize the magnitude of the labial tilt force or labial tilt moment M1 generated by the maxillary anterior tooth T1. When the first vertical distance H1 is not less than the second vertical distance H2, it can be used to characterize that the labial tilt force or labial tilt moment M1 generated by the maxillary anterior tooth T1 in the Nth orthodontic step is not less than the labial tilt force or labial tilt moment M1 generated by the maxillary anterior tooth T1 in the N+Mth orthodontic step.

[0125] The vertical distance between the first projection point R1' and the first projection line L1' is positively correlated with the labial tilt force or labial tilt moment M1 generated by the maxillary anterior tooth T1. The labial tilt force or labial tilt moment M1 generated by the maxillary anterior tooth T1 in each orthodontic step can be adjusted by controlling the vertical distance.

[0126] Optional, continue to combine Figure 7 The second projection point R2' and the first projection line L1' have a vertical distance. The dental component 100 of the Nth orthodontic step and the dental component 100 of the N+Mth orthodontic step have a third vertical distance H3 and a fourth vertical distance H4, respectively. The third vertical distance H3 is not greater than the fourth vertical distance H4. N and M are both positive integers.

[0127] The third vertical distance H3 and the fourth vertical distance H4 can be used to characterize the magnitude of the labial tilt force or labial tilt moment M2 generated by the mandibular anterior tooth T2. When the third vertical distance H3 is not greater than the fourth vertical distance H4, it can be used to characterize that the labial tilt force or labial tilt moment M2 generated by the mandibular anterior tooth T2 in the Nth orthodontic step is not greater than the labial tilt force or labial tilt moment M2 generated by the mandibular anterior tooth T2 in the N+Mth orthodontic step.

[0128] The vertical distance between the second projection point R2' and the first projection line L1' is positively correlated with the labial tilt force or labial tilt moment M2 generated by the mandibular anterior tooth T2. The labial tilt force or labial tilt moment M2 generated by the mandibular anterior tooth T2 in each orthodontic step can be adjusted by controlling the vertical distance.

[0129] When deep overbite treatment is in the relatively early Nth orthodontic step, since the maxillary anterior teeth T1 and mandibular anterior teeth T2 are usually relatively vertical, a relatively large labial tilt force or labial tilt moment M1 can be provided for the maxillary anterior teeth T1 to adjust the relative position of the maxillary anterior teeth T1 and alveolar bone to a larger extent first. The relative position of the mandibular anterior teeth T2 and alveolar bone can be left unadjusted at first, or a relatively small labial tilt force or labial tilt moment M2 can be provided for the mandibular anterior teeth T2 to adjust the relative position of the mandibular anterior teeth T2 and alveolar bone to a smaller extent.

[0130] Optionally, while the maxillary anterior T1 is labially incised, there may also be a certain degree of intrusion of the maxillary anterior T1.

[0131] Then, when the deep overbite treatment is in the relatively late N+M treatment step, the labial inclination of the maxillary anterior tooth T1 has progressed to a certain extent. At this time, the labial inclination force or labial inclination moment M1 of the maxillary anterior tooth T1 can be reduced to avoid excessive labial inclination of the maxillary anterior tooth T1. At the same time, the labial inclination force or labial inclination moment M2 of the mandibular anterior tooth T2 can be increased, thereby adjusting the relative position of the mandibular anterior tooth T2 and the alveolar bone to a greater extent.

[0132] Optionally, while the mandibular anterior T2 is labially incised, there may also be a certain degree of intrusion of the mandibular anterior T2.

[0133] Then, when the labial inclination of the maxillary anterior tooth T1 and the mandibular anterior tooth T2 has reached a certain level, the deep overbite has also been improved to a certain extent, and there is a certain space between the maxillary anterior tooth T1 and the mandibular anterior tooth T2 to achieve absolute intrusion.

[0134] Absolute compression mainly refers to the force generated by the mutual contact between the first mating structure 10 and the second mating structure 20, which mainly achieves compression. For example, the first mating structure 10 can be set near the incisal end Q1 of the maxillary anterior tooth T1 or directly set at the incisal end Q1, and the second mating structure 20 can be set near the incisal end Q2 of the mandibular anterior tooth T2 or directly set at the incisal end Q2. This allows a larger proportion of the force to be used to compress the maxillary anterior tooth T1 and the mandibular anterior tooth T2.

[0135] In the third implementation, combined Figure 8a and Figure 8b The resultant force line L1 forms a first projection line L1' at the first reference plane P1, and the impedance center line segment D forms a first projection line segment D' at the first reference plane P1. The first projection line L1' and the first projection line segment D' have no intersection point or only intersect at the endpoint Q3 of the first projection line segment D' corresponding to the mandibular anterior tooth T2. The endpoint Q3 is the projection point of the second impedance center R2 in the first reference plane P1.

[0136] The line of action of the resultant force L1 passes through the geometric center O or the force center O of the contact surface C formed by the first mating structure 10 and the second mating structure 20 abutting each other. The contact surface C is the area where the first mating structure 10 and the second mating structure 20 are in contact with each other. The contact surface C can be a plane or a curved surface. The line of action of the resultant force L1 is used to characterize the resultant force generated by the mutual abutment of the first mating structure 10 and the second mating structure 20.

[0137] The two endpoints of the line segment D connecting the impedance centers are the first impedance center R1 defined by the maxillary anterior tooth T1 and the second impedance center R2 defined by the mandibular anterior tooth T2.

[0138] The first reference plane P1 is parallel to the sagittal plane, which is a longitudinal section that divides the entire jaw into left and right parts.

[0139] Alternatively, the first reference plane P1 passes through the line of action of the resultant force L1 and extends along the lip-tongue direction X.

[0140] Optionally, when there is no intersection between the first projection line L1' and the first projection line segment D', the maxillary anterior tooth T1 can generate a non-zero labial tilt force or labial tilt moment M1, and the mandibular anterior tooth T2 can generate a non-zero labial tilt force or labial tilt moment M2.

[0141] When the first projection line L1' and the first projection line segment D' intersect only at the endpoint Q3 of the mandibular anterior tooth T2 corresponding to the first projection line segment D', the maxillary anterior tooth T1 can generate a non-zero labial tilting force or labial tilting moment M1, while the mandibular anterior tooth T2 can generate a zero labial tilting force or labial tilting moment, and the lingual tilting force or lingual tilting moment it can generate is also zero.

[0142] In the third implementation, when the first mating structure 10 and the second mating structure 20 abut against each other and generate force, the force acts on the maxillary anterior tooth T1 to produce labial inclination. At the same time, the force acts on the mandibular anterior tooth T2 to produce labial inclination, or the mandibular anterior tooth T2 neither produces labial inclination nor lingual inclination. The labial and lingual inclination of the maxillary and mandibular anterior teeth can be controlled by controlling the relative positional relationship between the first projection line L1' and the first projection line segment D'.

[0143] In the fourth implementation, combined Figure 9 The geometric center O or force center O of the contact surface C is located on the lip side of the line segment D connecting the impedance centers.

[0144] The contact surface C is the contact surface formed by the mutual contact between the first mating structure 10 and the second mating structure 20. The contact surface C can be a plane or a curved surface.

[0145] The two endpoints of the line segment D connecting the impedance centers are the first impedance center R1 defined by the maxillary anterior tooth T1 and the second impedance center R2 defined by the mandibular anterior tooth T2.

[0146] When the geometric center O or the force center O of the contact surface C is located on the labial side of the line segment D connecting the impedance centers, it is easy to achieve the labial inclination of the maxillary anterior tooth T1 and the mandibular anterior tooth T2. The labial and lingual inclination of the maxillary and mandibular anterior teeth can be controlled by controlling the relative position of the geometric center O or the force center O and the line segment D connecting the impedance centers.

[0147] In the fifth implementation, combined with Figures 10a to 11 The impedance center connecting line segment D forms the second projection line segment D” at the second reference plane P2. The geometric center O or force center O of the contact surface C is located at the third projection point O' at the second reference plane P2, which is located on the second side E2 of the second projection line segment D”.

[0148] The two endpoints of the line segment D connecting the impedance centers are the first impedance center R1 defined by the maxillary anterior tooth T1 and the second impedance center R2 defined by the mandibular anterior tooth T2.

[0149] The contact surface C is the contact surface formed by the mutual contact between the first mating structure 10 and the second mating structure 20.

[0150] The second reference plane P2 is parallel to the sagittal plane, which is a longitudinal section that divides the entire jaw into left and right parts.

[0151] Alternatively, the second reference plane P2 is determined by the geometric center O or force center O of the contact surface C, the first impedance center R1, and the second impedance center R2, that is, the second reference plane P2 is determined by three points.

[0152] Alternatively, the second reference surface P2 extends through at least one of the geometric center O or force center O of the contact surface C, the first impedance center R1, and the second impedance center R2, and extends along the lip direction X, i.e., at least one point and the lip direction X determine the second reference surface P2.

[0153] The second side E2 includes the incisal edge Q1 of the maxillary anterior tooth T1, and the second side E2 is the left region of the second projection line segment D”.

[0154] When the third projection point O' is located on the second side E2 of the second projection line segment D”, it is convenient to achieve the labial inclination of the maxillary anterior tooth T1 and the mandibular anterior tooth T2. The labial and lingual inclination of the maxillary and mandibular anterior teeth can be controlled by controlling the relative position of the third projection point O' and the second projection line segment D”.

[0155] Optionally, in the fifth implementation, combined with Figure 11 There is a vertical distance between the third projection point O' and the second projection line segment D”. The dental component 100 of the Nth orthodontic step and the dental component 100 of the N+Mth orthodontic step have a first vertical distance K1 and a second vertical distance K2, respectively. The second vertical distance K2 is not less than the first vertical distance K1. N and M are both positive integers.

[0156] The first vertical distance K1 and the second vertical distance K2 can be used to characterize the design space of labial tilt force or labial tilt moment of the maxillary and mandibular anterior teeth. When the vertical distance is larger, the design space of labial tilt force or labial tilt moment of the maxillary and mandibular anterior teeth is larger, and a relatively larger labial tilt force or labial tilt moment M1 corresponding to the maxillary anterior tooth T1 or a relatively larger labial tilt force or labial tilt moment M2 corresponding to the mandibular anterior tooth T2 can be designed, thereby achieving a larger maxillary labial tilt or mandibular labial tilt.

[0157] Optionally, the above-mentioned implementation forms can exist independently or in combination. For example, the third and fourth implementation forms can be combined to form a new implementation form, that is, controlling that there is no intersection between the first projection line L1' and the first projection line segment D' or that they only intersect at the endpoint Q3 of the first projection line segment D' corresponding to the mandibular anterior tooth T2, and at the same time controlling that the geometric center O or the force center O of the contact surface C is located on the labial side of the impedance center connecting line segment D.

[0158] Optionally, for various implementation forms, combined with Figure 12 The first mating structure 10 corresponds to the N-sized maxillary anterior tooth T1, and the second mating structure 20 corresponds to the M-sized mandibular anterior tooth T2.

[0159] Alternatively, the first mating structure 10' is set to connect the adjacent tooth space G1 of the maxillary anterior tooth T1 of the Nth tooth, and the first mating structure 10' may also extend from the adjacent tooth space G1 to the maxillary anterior tooth T1 of the Nth tooth; the second mating structure 20' is set to connect the adjacent tooth space G2 of the mandibular anterior tooth T2 of the Mth tooth, and the second mating structure 20' may also extend from the adjacent tooth space G2 to the mandibular anterior tooth T2 of the Mth tooth.

[0160] Optionally, the first impedance center R1 can be the impedance center of maxillary anterior tooth T1 (N) or the two impedance centers of maxillary anterior tooth T1 (N) and maxillary anterior tooth T1 (N') located on both sides of the interdental space G1.

[0161] When the first impedance center R1 is the two impedance centers of maxillary anterior teeth T1 and T1 of maxillary anterior teeth N', the midpoint of the two impedance centers can be used as the first impedance center R1 used in the aforementioned implementation forms. Alternatively, each impedance center can be used as the first impedance center R1 used in the aforementioned implementation forms, and then two processing steps can be performed based on the two first impedance centers R1.

[0162] The second impedance center R2 is the impedance center of mandibular anterior tooth T2 of size M, or the two impedance centers of mandibular anterior tooth T2 of size M and mandibular anterior tooth T2 located on both sides of the interdental space.

[0163] When the second impedance center R2 is the two impedance centers of mandibular anterior teeth T2 of size M and mandibular anterior teeth T2 of size M', the midpoint of the two impedance centers can be used as the second impedance center R2 used in the aforementioned multiple implementation forms, or each impedance center can be used as the second impedance center R2 used in the aforementioned multiple implementation forms, and then two processing steps are performed based on the two second impedance centers R2 respectively.

[0164] Optionally, various design options are available for different orthodontic steps.

[0165] In the first design form, combined Figure 13The resultant force line L1 forms a first acute angle α1 with the first tooth long axis Z1 of the maxillary anterior tooth T1, and the first acute angle α1 of the dental component 100 in the Nth orthodontic step is not less than the first acute angle α1 of the dental component 100 in the N+Mth orthodontic step.

[0166] Optionally, the resultant force line L1 and the long axis Z1 of the first tooth can be projected onto the same reference plane to obtain the first acute angle α1, which is directed toward the mandibular anterior tooth T2.

[0167] The first acute angle α1 can be used to characterize the magnitude of the labial tilting force or labial tilting moment M1 generated by the maxillary anterior tooth T1. When the first acute angle α1 of the dental component 100 in the Nth orthodontic step is not less than the first acute angle α1 of the dental component 100 in the N+Mth orthodontic step, it can be characterized that the labial tilting force or labial tilting moment M1 generated by the maxillary anterior tooth T1 in the Nth orthodontic step is not less than the labial tilting force or labial tilting moment M1 generated by the maxillary anterior tooth T1 in the N+Mth orthodontic step.

[0168] The geometric center O or force center O of the contact surface C through which the resultant force line L1 passes is located on the lingual side of the long axis Z1 of the first tooth (the right side region of the long axis Z1 of the first tooth). When the geometric center O or force center O of the contact surface C remains approximately unchanged, the first acute angle α1 is positively correlated with the labial tilt force or labial tilt moment M1 generated by the maxillary anterior tooth T1. The labial tilt force or labial tilt moment M1 generated by the maxillary anterior tooth T1 in each orthodontic step can be adjusted by controlling the first acute angle α1.

[0169] The resultant force line L1 forms a second acute angle α2 with the second tooth long axis Z2 of the mandibular anterior tooth T2. The second acute angle α2 of the dental component 100 in the Nth orthodontic step is not less than the second acute angle α2 of the dental component 100 in the N+Mth orthodontic step.

[0170] Optionally, the resultant force line L1 and the long axis Z2 of the second tooth can be projected onto the same reference plane to obtain the second acute angle α2, which is oriented toward the maxillary anterior tooth T1.

[0171] The second acute angle α1 can be used to characterize the magnitude of the labial tilting force or labial tilting moment M2 generated by the mandibular anterior tooth T2. When the second acute angle α2 of the dental component 100 in the Nth orthodontic step is not less than the second acute angle α2 of the dental component 100 in the N+Mth orthodontic step, it can be used to characterize that the labial tilting force or labial tilting moment M2 generated by the mandibular anterior tooth T2 in the Nth orthodontic step is not greater than the labial tilting force or labial tilting moment M2 generated by the mandibular anterior tooth T2 in the N+Mth orthodontic step.

[0172] The geometric center O or force center O of the contact surface C through which the resultant force line L1 passes is located on the labial side of the long axis Z2 of the second tooth (the left side region of the long axis Z2 of the second tooth). When the geometric center O or force center O of the contact surface C remains approximately unchanged, the second acute angle α2 is inversely correlated with the labial tilt force or labial tilt moment M2 generated by the mandibular anterior tooth T2. The labial tilt force or labial tilt moment M2 generated by the mandibular anterior tooth T2 in each orthodontic step can be adjusted by controlling the second acute angle α2.

[0173] In the second design form, combined Figure 14 In the Nth orthodontic step, the first mating structure 10 and the second mating structure 20 abut against each other to generate a first torque M1'. In the N+Mth orthodontic step, the first mating structure 10 and the second mating structure 20 abut against each other to generate a second torque M2'. The first torque M1' includes only the maxillary labial tilt torque M11' or the first torque M1' includes the maxillary labial tilt torque M11' and the mandibular labial tilt torque M12'. The second torque M2' includes the maxillary labial tilt torque M21' and the mandibular labial tilt torque M22'. N and M are both positive integers.

[0174] When the first torque M1' only includes the maxillary labial inclination torque M11', the first torque M1' only achieves the labial inclination of the maxillary anterior tooth T1.

[0175] When the first torque M1' includes the maxillary labial tilt torque M11' and the mandibular labial tilt torque M12', the first torque M1' simultaneously achieves the labial tilt of the maxillary anterior tooth T1 and the labial tilt of the mandibular anterior tooth T2.

[0176] When the second torque M2' includes the maxillary labial inclination torque M21' and the mandibular labial inclination torque M22', the second torque M2' simultaneously achieves the labial inclination of the maxillary anterior tooth T1 and the mandibular anterior tooth T2.

[0177] The absolute value of the lever arm corresponding to the maxillary labial inclination torque M11' in the first torque M1' is not less than the absolute value of the lever arm corresponding to the maxillary labial inclination torque M21' in the second torque M2', that is, the degree of labial inclination produced by the maxillary anterior tooth T1 in the Nth orthodontic step is not less than the degree of labial inclination produced by the maxillary anterior tooth T1 in the N+Mth orthodontic step.

[0178] The absolute value of the lever arm corresponding to the mandibular labial inclination torque M12' in the first torque M1' is not greater than the absolute value of the lever arm corresponding to the mandibular labial inclination torque M22' in the second torque M2', that is, the degree of labial inclination produced by the mandibular anterior tooth T2 in the Nth orthodontic step is not greater than the degree of labial inclination produced by the mandibular anterior tooth T2 in the N+Mth orthodontic step.

[0179] In the two design forms mentioned above, when deep overbite treatment is in the relatively early Nth treatment step, since the maxillary anterior teeth T1 and mandibular anterior teeth T2 are usually relatively vertical, a relatively large labial tilt force or labial tilt moment can be provided to adjust the relative position of the maxillary anterior teeth T1 and alveolar bone to a larger extent first. The relative position of the mandibular anterior teeth T2 and alveolar bone can be left unadjusted first, or a relatively small labial tilt force or labial tilt moment can be provided to adjust the relative position of the mandibular anterior teeth T2 and alveolar bone to a smaller extent.

[0180] Optionally, while the maxillary anterior T1 is labially incised, there may also be a certain degree of intrusion of the maxillary anterior T1.

[0181] Then, when the deep overbite treatment is in the relatively late N+M treatment step, the labial inclination of the maxillary anterior tooth T1 has progressed to a certain extent. At this time, the labial inclination force or labial inclination moment of the maxillary anterior tooth T1 can be reduced to avoid excessive labial inclination of the maxillary anterior tooth T1. At the same time, the labial inclination force or labial inclination moment of the mandibular anterior tooth T2 can be increased, thereby adjusting the relative position of the mandibular anterior tooth T2 and the alveolar bone to a greater extent.

[0182] Optionally, while the mandibular anterior T2 is labially incised, there may also be a certain degree of intrusion of the mandibular anterior T2.

[0183] Then, when the labial inclination of the maxillary anterior tooth T1 and the mandibular anterior tooth T2 has reached a certain level, the deep overbite has also been improved to a certain extent, and there is a certain space between the maxillary anterior tooth T1 and the mandibular anterior tooth T2 to achieve absolute intrusion.

[0184] Absolute compression mainly refers to the force generated by the mutual contact between the first mating structure 10 and the second mating structure 20, which mainly achieves compression. For example, the first mating structure 10 can be set near the incisal end Q1 of the maxillary anterior tooth T1 or directly set at the incisal end Q1, and the second mating structure 20 can be set near the incisal end Q2 of the mandibular anterior tooth T2 or directly set at the incisal end Q2. This allows a larger proportion of the force to be used to compress the maxillary anterior tooth T1 and the mandibular anterior tooth T2.

[0185] Optional, combined Figure 15 The dental components 100 of at least some different orthodontic steps have a first mating structure 10 and a second mating structure 20 with different parameters, so that the dental components 100 of at least two orthodontic steps can be controlled to produce different labial inclinations of the upper and lower anterior teeth.

[0186] The first mating structure 10 and the second mating structure 20 of different orthodontic steps correspond to the same tooth area. That is, the force generated by the mutual contact between the first mating structure 10 and the second mating structure 20 of different orthodontic steps is used to correct the same tooth area. For example, the first mating structure 10 and the second mating structure 20 of different orthodontic steps are both used to correct the Nth maxillary anterior tooth T1 and the Mth mandibular anterior tooth T2.

[0187] The parameters include at least one of the following: the setting position of the contact surface C formed by the first mating structure 10 and the second mating structure 20 abutting each other, the shape of the contact surface C, the position of the geometric center O or the force center O of the contact surface C, and the direction of the resultant force line L1 passing through the geometric center O or the force center O.

[0188] The location of the abutment surface C is defined as the spatial position of the abutment surface C within the accommodating gap S', where the accommodating gap S' is the gap formed between the upper and lower jaws to accommodate the first mating structure 10 and the second mating structure 20.

[0189] Optionally, the location of the contact surface C may be, for example, the incisal edge Q1 near the maxillary anterior tooth T1, the incisal edge Q2 near the mandibular anterior tooth T2, or the area between the incisal edge Q1 of the maxillary anterior tooth T1 and the incisal edge Q2 of the mandibular anterior tooth T2.

[0190] The shape of the contact surface C includes at least one of the following: the geometry of the contact surface C, and the direction of extension of the contact surface C.

[0191] Optionally, the contact surface C can be a plane or a curved surface. When the contact surface C is a plane, the geometry of the contact surface C can be a regular shape such as a circle, ellipse, square, triangle or other irregular shape. When the contact surface C is a curved surface, the geometry of the contact surface C can be defined by the curvature of the contact surface C.

[0192] The direction of extension of the contact surface C is, for example, the horizontal direction, or the direction that forms different angles with the horizontal direction.

[0193] The position of the geometric center O or force center O of the contact surface C is defined as the spatial position of the geometric center O or force center O of the contact surface C within the accommodating gap S'.

[0194] Optionally, the location of the geometric center O or the force center O of the contact surface C is mainly determined by the shape of the contact surface C.

[0195] When the contact surface C is a plane, the geometric center O is defined as the center or centroid of the plane, and the force center O is defined as the resultant point of all forces acting on the plane. The force center O can overlap with the geometric center O.

[0196] When the contact surface C is a curved surface, the force center O is defined as the resultant point of all forces acting on the curved surface.

[0197] The first mating structure 10 and the second mating structure 20 of the Nth and N+M orthodontic steps have at least one different parameter to produce different labial inclinations of the maxillary and mandibular anterior teeth.

[0198] In summary, this invention, during orthodontic treatment, at least causes the maxillary anterior tooth T1 to labially tilt. Firstly, it can gradually adjust the relative position of the maxillary anterior tooth T1 and the alveolar bone to make the maxillary anterior tooth T1 suitable for intrusion. Secondly, it can increase the gap between the maxillary anterior tooth T1 and the mandibular anterior tooth T2 to facilitate the installation design of the first mating structure 10 and the second mating structure 20. Thirdly, the maxillary anterior tooth T1 has a certain degree of inclination, which facilitates its interaction with the mandibular anterior tooth T2, making it easier to achieve intrusion and retraction of the anterior teeth.

[0199] During the treatment of deep overbite, if the mandibular anterior tooth T2 becomes lingually inclined, it will worsen the deep overbite. If the maxillary anterior tooth T1 becomes lingually inclined, it will cause the maxillary anterior tooth T1 and the mandibular anterior tooth T2 to interfere with each other. The first mating structure 10 of this utility model is set on the lingual side of the maxillary anterior tooth T1, and the second mating structure 20 is set on the labial side of the mandibular anterior tooth T2. By reasonably designing the first mating structure 10 and the second mating structure 20, the maxillary anterior tooth T1 can be labially inclined and the mandibular anterior tooth T2 can not be lingually inclined, which can effectively avoid the aggravation of deep overbite.

[0200] This invention can not only cause labial inclination of the maxillary anterior teeth T1 (or labial inclination of the mandibular anterior teeth T2) during the orthodontic process, but also cause intrusion and retraction of the maxillary and mandibular anterior teeth. For example, when the teeth are labially inclinated, they will be intruded or retracted. The relative position between the teeth and alveolar bone after labial inclination is more suitable for the realization of intrusion or retraction of the teeth, thereby accelerating the resolution of deep overbite problems.

[0201] It should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This way of describing the specification is only for clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

[0202] The detailed descriptions listed above are merely specific descriptions of feasible implementations of this utility model, and are not intended to limit the scope of protection of this utility model. All equivalent implementations or modifications made without departing from the spirit of this utility model should be included within the scope of protection of this utility model.

Claims

1. A dental component, characterized in that, It includes a first mating structure provided on the lingual side or incisal edge of the corresponding maxillary anterior teeth and a second mating structure provided on the labial side or incisal edge of the corresponding mandibular anterior teeth. The first mating structure and the second mating structure are configured such that when the maxilla and mandible occlude, the first mating structure and the second mating structure abut against each other to generate a force or torque. The force or torque includes at least the labial inclination force of the corresponding maxillary anterior teeth or the labial inclination torque of the corresponding maxillary anterior teeth.

2. The dental component according to claim 1, characterized in that, Force or torque also includes the indentation force corresponding to the upper and lower anterior teeth.

3. The dental component according to claim 1, characterized in that, Force or torque also includes labial inclination force or labial inclination torque of the corresponding mandibular anterior teeth.

4. The dental component according to claim 1, characterized in that, The first impedance center of the maxillary anterior teeth is located on the lingual side of the line of action of the mate force, and the second impedance center of the mandibular anterior teeth is located on the lingual side of the line of action of the mate force or on the line of action of the mate force. The line of action of the mate force is defined by the contact surface formed by the first mating structure and the second mating structure abutting each other.

5. The dental component according to claim 1, characterized in that, The resultant force line forms a first projection line at the first reference plane. The first projection point of the first impedance center defined by the maxillary anterior teeth at the first reference plane is located on the first side of the first projection line. The second projection point of the second impedance center defined by the mandibular anterior teeth at the first reference plane is located on the first side of the first projection line or on the first projection line. The resultant force line passes through the geometric center or force center of the contact surface formed by the first mating structure and the second mating structure. The first side includes the incisal edge of the mandibular anterior teeth. The first reference plane is parallel to the sagittal plane. Alternatively, the first reference plane passes through the resultant force line and extends along the labial-lingual direction.

6. The dental component according to claim 1, characterized in that, The resultant force line forms a first projection line at the first reference plane, and the impedance center connecting segment forms a first projection line segment at the first reference plane. The first projection line and the first projection line segment have no intersection point or intersect only at the endpoint of the first projection line segment corresponding to the mandibular anterior tooth. The resultant force line passes through the geometric center or force center of the contact surface formed by the first mating structure and the second mating structure. The two endpoints of the impedance center connecting segment are the first impedance center defined by the maxillary anterior tooth and the second impedance center defined by the mandibular anterior tooth, respectively. The first reference plane is parallel to the sagittal plane, or the first reference plane passes through the resultant force line and extends along the labial and lingual direction.

7. The dental component according to claim 1, characterized in that, The geometric center or force center of the abutment surface is located on the labial side of the line segment connecting the impedance centers. The abutment surface is the contact surface formed by the first mating structure and the second mating structure abutting each other. The two endpoints of the line segment connecting the impedance centers are the first impedance center defined by the maxillary anterior teeth and the second impedance center defined by the mandibular anterior teeth, respectively.

8. The dental component according to claim 1, characterized in that, The impedance center connecting line segment forms a second projection line segment at the second reference plane. The second projection point of the geometric center or force center of the abutment surface at the second reference plane is located on the second side of the second projection line segment. The two endpoints of the impedance center connecting line segment are the first impedance center defined by the maxillary anterior teeth and the second impedance center defined by the mandibular anterior teeth, respectively. The abutment surface is the contact surface formed by the mutual abutment of the first mating structure and the second mating structure. The second reference plane is parallel to the sagittal plane. Alternatively, the second reference plane is determined by the geometric center or force center of the abutment surface, the first impedance center, and the second impedance center. Alternatively, the second reference plane passes through at least one of the geometric center or force center of the abutment surface, the first impedance center, and the second impedance center and extends in the labial-lingual direction. The second side includes the incisal edge of the mandibular anterior teeth.

9. A dental component, characterized in that, It includes a first mating structure provided on the lingual side or incisal edge of the corresponding maxillary anterior teeth and a second mating structure provided on the labial side or incisal edge of the corresponding mandibular anterior teeth. The first impedance center of the maxillary anterior teeth is located on the lingual side of the line of action of the synergistic force, and the second impedance center of the mandibular anterior teeth is located on the lingual side of the line of action of the synergistic force or on the line of action of the synergistic force. The line of action of the synergistic force is defined by the contact surface formed by the mutual contact of the first mating structure and the second mating structure.

10. The dental component according to claim 9, characterized in that, The resultant force line forms a first projection line at the first reference plane. The first projection point of the first impedance center defined by the maxillary anterior teeth at the first reference plane is located on the first side of the first projection line. The second projection point of the second impedance center defined by the mandibular anterior teeth at the first reference plane is located on the first side of the first projection line or on the first projection line. The resultant force line passes through the geometric center or force center of the abutment surface. The first side includes the incisal edge of the mandibular anterior teeth. The first reference plane is parallel to the sagittal plane. Alternatively, the first reference plane passes through the resultant force line and extends along the labial-lingual direction.

11. The dental component according to claim 10, characterized in that, There is a vertical distance between the first projection point and the first projection line. The dental components of the Nth orthodontic step and the dental components of the N+Mth orthodontic steps have a first vertical distance and a second vertical distance, respectively. The first vertical distance is not less than the second vertical distance, and N and M are both positive integers.

12. The dental component according to claim 10, characterized in that, The second projection point has a vertical distance from the first projection line. The dental components of the Nth orthodontic step and the dental components of the N+Mth orthodontic step have a third vertical distance and a fourth vertical distance, respectively. The third vertical distance is not greater than the fourth vertical distance. N and M are both positive integers.

13. A dental component, characterized in that, It includes a first mating structure provided on the lingual or incisal side of the maxillary anterior teeth and a second mating structure provided on the labial or incisal side of the mandibular anterior teeth. The geometric center or force center of the abutment surface is located on the labial side of the line segment connecting the impedance centers. The abutment surface is the contact surface formed by the first mating structure and the second mating structure abutting each other. The two endpoints of the line segment connecting the impedance centers are the first impedance center defined by the maxillary anterior teeth and the second impedance center defined by the mandibular anterior teeth, respectively.

14. The dental component according to claim 13, characterized in that, The resultant force line forms a first projection line at the first reference plane, and the impedance center connecting line segment forms a first projection line segment at the first reference plane. The first projection line and the first projection line segment have no intersection point or only intersect at the endpoint of the corresponding mandibular anterior tooth of the first projection line segment. The resultant force line passes through the geometric center or force center of the contact surface formed by the mutual contact of the first mating structure and the second mating structure. The first reference plane is parallel to the sagittal plane, or the first reference plane passes through the resultant force line and extends along the labial and lingual direction.

15. The dental component according to claim 13, characterized in that, The impedance center connecting line segment forms a second projection line segment at the second reference plane. The third projection point of the geometric center or force center of the abutment surface at the second reference plane is located on the second side of the second projection line segment. The second reference plane is parallel to the sagittal plane. Alternatively, the second reference plane is determined by the geometric center or force center of the abutment surface, the first impedance center, and the second impedance center. Alternatively, the second reference plane passes through at least one of the geometric center or force center of the abutment surface, the first impedance center, and the second impedance center and extends in the labial-lingual direction. The second side includes the incisal edge of the maxillary anterior teeth.

16. The dental component according to claim 15, characterized in that, The third projection point has a vertical distance from the second projection line segment. The dental components of the Nth orthodontic step and the dental components of the N+Mth orthodontic step have a first vertical distance and a second vertical distance, respectively. The second vertical distance is not less than the first vertical distance. N and M are both positive integers.

17. A dental component, characterized in that, The system includes a first mating structure positioned on the lingual or incisal side of the maxillary anterior teeth and a second mating structure positioned on the labial or incisal side of the mandibular anterior teeth. The resultant force line forms a first projection line at a first reference plane, and the impedance center connecting segment forms a first projection line segment at the first reference plane. The first projection line and the first projection line segment have no intersection point or intersect only at the endpoint of the first projection line segment corresponding to the mandibular anterior teeth. The resultant force line passes through the geometric center or force center of the contact surface formed by the mutual contact of the first and second mating structures. The two endpoints of the impedance center connecting segment are the first impedance center defined by the maxillary anterior teeth and the second impedance center defined by the mandibular anterior teeth, respectively. The first reference plane is parallel to the sagittal plane, or the first reference plane passes through the resultant force line and extends along the labial and lingual direction.

18. The dental component according to any one of claims 4-17, characterized in that, The first mating structure corresponds to the Nth maxillary anterior tooth or the adjacent tooth space connecting the Nth maxillary anterior tooth, and the second mating structure corresponds to the Mth mandibular anterior tooth or the adjacent tooth space connecting the Mth mandibular anterior tooth.

19. The dental component according to claim 18, characterized in that, The first impedance center is the impedance center of the N-sized maxillary anterior tooth or the two impedance centers of the N-sized maxillary anterior tooth and the N'-sized maxillary anterior tooth located on both sides of the interdental space; the second impedance center is the impedance center of the M-sized mandibular anterior tooth or the two impedance centers of the M-sized mandibular anterior tooth and the M'-sized mandibular anterior tooth located on both sides of the interdental space.

20. The dental component according to any one of claims 4-17, characterized in that, When the contact surface is a plane, the line of action of the resultant force is perpendicular to the plane. When the contact surface is a curved surface, the line of action of the resultant force is perpendicular to the tangent of the curved surface, and the tangent passes through the force center of the curved surface.

21. The dental component according to any one of claims 4-17, characterized in that, The first acute angle is formed between the line of action of the resultant force and the long axis of the first tooth of the maxillary anterior tooth, and the first acute angle of the dental component in the Nth orthodontic step is not less than the first acute angle of the dental component in the N+Mth orthodontic step.

22. The dental component according to any one of claims 4-17, characterized in that, The resultant force line forms a second acute angle with the long axis of the second mandibular anterior tooth, and the second acute angle of the dental component in the Nth orthodontic step is not less than the second acute angle of the dental component in the N+Mth orthodontic step.

23. The dental component according to any one of claims 1-17, characterized in that, The first and second mating structures of the Nth orthodontic step abut against each other to generate a first torque. The first and second mating structures of the N+Mth orthodontic step abut against each other to generate a second torque. The first torque includes only the maxillary labial tilt torque or the first torque includes both the maxillary labial tilt torque and the mandibular labial tilt torque. The second torque includes both the maxillary labial tilt torque and the mandibular labial tilt torque. N and M are both positive integers.

24. The dental component according to claim 23, characterized in that, The absolute value of the lever arm corresponding to the maxillary inclination torque in the first torque is not less than the absolute value of the lever arm corresponding to the maxillary inclination torque in the second torque.

25. The dental component according to claim 23, characterized in that, The absolute value of the lever arm corresponding to the mandibular tilting torque in the first torque is not greater than the absolute value of the lever arm corresponding to the mandibular tilting torque in the second torque.

26. The dental component according to any one of claims 1-17, characterized in that, At least some of the dental components for different orthodontic steps have first and second mating structures with different parameters. The first and second mating structures for different orthodontic steps correspond to the same tooth regions. The parameters include at least one of the following: the location of the abutment surface formed by the first and second mating structures abutting each other, the shape of the abutment surface, the location of the geometric center or force center of the abutment surface, and the direction of the resultant force line passing through the geometric center or force center. The location of the abutment surface is defined as the spatial location of the abutment surface within the receiving gap, which is a gap formed between the upper and lower jaws to accommodate the first and second mating structures. The shape of the abutment surface includes at least one of the following: the geometric shape of the abutment surface and the extension direction of the abutment surface. The location of the geometric center or force center of the abutment surface is defined as the spatial location of the geometric center or force center of the abutment surface within the receiving gap.

27. The dental component according to claim 26, characterized in that, The contact surface is a plane.

28. The dental component according to any one of claims 1-17, characterized in that, One of the first mating structure and the second mating structure is a protruding part of the tooth, and the other is a protruding part of the tooth or a part that fits the tooth.

29. The dental component according to claim 28, characterized in that, The protrusion is directly connected to the tooth, or the dental assembly further includes a shell having a cavity for accommodating the tooth, and the protrusion is connected to the shell.

30. The dental component according to claim 28, characterized in that, The portion that conforms to the tooth is the tooth area, or the dental component may further include a shell having a cavity for accommodating the tooth, the portion of which conforms to the tooth being the area where the shell is in close contact with the tooth.

31. The dental component according to any one of claims 1-17, characterized in that, When the first mating structure and the second mating structure abut against each other, the upper and lower jaws are in a force-applying jaw position, which deviates from the preset jaw position, and the biting force corresponding to the force-applying jaw position is greater than the preset biting force corresponding to the preset jaw position.

32. The dental component according to claim 31, characterized in that, The preset jaw position is the resting jaw position, and the preset occlusal force is zero or less than a preset value.

33. The dental component according to claim 31, characterized in that, The opening angle of the upper and lower jaws corresponding to the applied jaw position is greater than the opening angle of the upper and lower jaws corresponding to the preset jaw position, and the gap between the upper and lower jaws corresponding to the applied jaw position is greater than the gap between the upper and lower jaws corresponding to the preset jaw position.

34. The dental component according to claim 31, characterized in that, The biting force corresponding to the applied jaw position is positively correlated with the degree of opening of the upper and lower jaws, which includes the opening angle of the upper and lower jaws or the gap between the upper and lower jaws.

Images