Dental system

Abstract

The utility model discloses a dental system which comprises two correcting devices corresponding to the Nth correcting step and the (N + M) th correcting step, N and M are positive integers, each correcting device comprises a jaw plate structure connected with the upper jaw and the lower jaw, each jaw plate structure comprises a first part arranged corresponding to the upper jaw teeth and a second part arranged corresponding to the lower jaw teeth, and when the jaw plate structures are connected with the upper jaw and the lower jaw, the first part is connected with the first part. The first part and the second part abut against each other to form an abutting face, the two jaw plate structures corresponding to the two correctors have different parameters, and the different parameters are configured as follows: when the jaw plate structures are connected with the upper jaw and the lower jaw, the different parameters generate different acting forces and / or different moments. Different parameters can enable the two correctors to generate different acting forces and / or different moments, and the correction requirements of different correction steps are met through the different acting forces and / or the different moments.

Description

TECHNICAL FIELD

[0001] The utility model relates to tooth correction technical field, especially a kind of dental system. BACKGROUND

[0002] In the tooth correction process, generally need multiple successive aligners, for example, more than 20, even more than 40. In some cases, it is necessary to realize the pressure, lip, tongue and so on in a certain stage of orthodontic treatment, then, it is necessary to set jaw plate structure on the multiple successive aligners corresponding to the stage.

[0003] In the prior art, the jaw plate structure is single and cannot meet the correction requirements of each stage. SUMMARY

[0004] The utility model aims at providing a kind of dental system, it is helpful to provide personalized jaw plate structure for each correction step.

[0005] The utility model embodiment provides a kind of dental system, including corresponding the two aligners of the Nth correction step and the N+Mth correction step, N, M are all positive integers, each aligner includes the jaw plate structure connecting upper and lower jaws, the jaw plate structure includes the first part being set corresponding to upper jaw teeth and the second part being set corresponding to lower jaw teeth, when the jaw plate structure connects upper and lower jaws, the first part and the second part mutually abut and form abutment face, the two jaw plate structures corresponding to two aligners have different parameters, and the different parameters are configured as: when the jaw plate structure connects upper and lower jaws, different parameters generate different force and / or different moment.

[0006] The utility model embodiment provides a kind of dental system, including corresponding the two aligners of the Nth correction step and the N+Mth correction step, N, M are all positive integers, each aligner includes the jaw plate structure connecting upper and lower jaws, the jaw plate structure includes the first part being set corresponding to upper jaw teeth and the second part being set corresponding to lower jaw teeth, when the jaw plate structure connects upper and lower jaws, the first part and the second part mutually abut and form abutment face, the two jaw plate structures of two aligners have different parameters, and the parameter includes at least one of the following: the setting position of jaw plate structure, the form of abutment face, the contact point position formed by abutment face, the direction of action line through contact point, wherein, the setting position of jaw plate structure is defined as the installation position of jaw plate structure in installation gap, and the installation gap is the gap formed between upper and lower jaws for installing the jaw plate structure;The form of abutment face includes at least one of the following: the geometric shape of abutment face, the extension direction of abutment face;Contact point position is defined as the spatial position of geometric center or force center of abutment face in installation gap.

[0007] Optionally, the abutment face is a plane.

[0008] Optionally, when the first part and the second part abut against each other, the upper and lower jaws form a target jaw position, and the parameter includes a bite force on the jaw plate structure when the upper and lower jaws are in the target jaw position.

[0009] Optionally, the bite force is positively correlated with an opening degree of the upper and lower jaws corresponding to the target jaw position, and the opening degree includes an opening angle or a gap between the upper and lower jaws.

[0010] Optionally, the target jaw position deviates from a starting jaw position, and a bite force corresponding to the target jaw position is greater than a starting bite force corresponding to the starting jaw position.

[0011] Optionally, the starting jaw position is a rest jaw position, and the starting bite force is zero or less than a preset value.

[0012] Optionally, an opening angle of the upper and lower jaws corresponding to the target jaw position is greater than an opening angle of the upper and lower jaws corresponding to the starting jaw position, and a gap of the upper and lower jaws corresponding to the target jaw position is greater than a gap of the upper and lower jaws corresponding to the starting jaw position.

[0013] Optionally, different parameters generate different forces and / or different moments, the forces are a lower force, an anterior tooth retraction force, a labial-lingual tipping force, or a lingual tipping force, and the moments are a labial-lingual tipping moment or a lingual tipping moment.

[0014] Optionally, the Nth treatment step and the N+Mth treatment step correspond to different treatment stages or the same treatment stage, and each treatment stage includes at least one of the following: maxillary labial-lingual tipping treatment, mandibular labial-lingual tipping treatment, maxillary lingual tipping treatment, mandibular lingual tipping treatment, maxillary lower treatment, mandibular lower treatment, maxillary anterior tooth retraction treatment, and mandibular anterior tooth retraction treatment.

[0015] Optionally, the first part and the second part of the Nth treatment step and the N+Mth treatment step are arranged on the lingual side or the incisal end of the maxillary anterior teeth and the labial side or the incisal end of the mandibular anterior teeth, respectively, the first part and the second part of the Nth treatment step abut against each other to generate a first moment, the first part and the second part of the N+Mth treatment step abut against each other to generate a second moment, the first moment includes only a maxillary labial-lingual tipping moment or the first moment includes a maxillary labial-lingual tipping moment and a mandibular labial-lingual tipping moment, and the second moment includes a maxillary labial-lingual tipping moment and a mandibular labial-lingual tipping moment.

[0016] Optionally, an absolute value of a force arm corresponding to the maxillary labial-lingual tipping moment in the first moment is not less than an absolute value of a force arm corresponding to the maxillary labial-lingual tipping moment in the second moment.

[0017] Optionally, an absolute value of a force arm corresponding to the mandibular labial-lingual tipping moment in the first moment is not greater than an absolute value of a force arm corresponding to the mandibular labial-lingual tipping moment in the second moment.

[0018] Optionally, the first portion corresponds to lingual or incisal side of maxillary anterior teeth, the second portion corresponds to labial or incisal side of mandibular anterior teeth, an action line forms a first projection line at a first reference plane, a first projection point of a first impedance center defined by the maxillary anterior teeth at the first reference plane is located at a first side of the first projection line, a second projection point of a second impedance center defined by the mandibular anterior teeth at the first reference plane is located at the first side of the first projection line or on the first projection line, the second projection point has a vertical distance from the first projection line, the first appliance of the Nth treatment step and the appliance of the N+Mth treatment step have a first vertical distance and a second vertical distance respectively, the first vertical distance is not less than the second vertical distance, the action line passes through a geometric center or a force center of the abutment surface, the first side includes incisal sides of the mandibular anterior teeth, the first reference plane is parallel to a sagittal plane, or the first reference plane passes through the action line and extends in a labial-lingual direction.

[0019] Optionally, the first portion corresponds to lingual or incisal side of maxillary anterior teeth, the second portion corresponds to labial or incisal side of mandibular anterior teeth, an action line forms a first projection line at a first reference plane, a first projection point of a first impedance center defined by the maxillary anterior teeth at the first reference plane is located at a first side of the first projection line, a second projection point of a second impedance center defined by the mandibular anterior teeth at the first reference plane is located at the first side of the first projection line or on the first projection line, the second projection point has a vertical distance from the first projection line, the first appliance of the Nth treatment step and the appliance of the N+Mth treatment step have a first vertical distance and a second vertical distance respectively, the first vertical distance is not less than the second vertical distance, the action line passes through a geometric center or a force center of the abutment surface, the first side includes incisal sides of the mandibular anterior teeth, the first reference plane is parallel to a sagittal plane, or the first reference plane passes through the action line and extends in a labial-lingual direction.

[0020] Optionally, the first portion corresponds to a lingual side of maxillary anterior teeth, the second portion corresponds to a labial side of mandibular anterior teeth, the impedance center connecting line segment forms a second projection line segment at a second reference surface, a geometric center or a force center of the abutment surface has a third projection point at the second reference surface, the third projection point is located on a second side of the second projection line segment, the third projection point has a vertical distance from the second projection line segment, a dental system of an Nth orthodontic step and a dental system of an 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, two end points of the impedance center connecting line segment are a first impedance center defined by the maxillary anterior teeth and a second impedance center defined by the mandibular anterior teeth respectively, the second reference surface is parallel to a sagittal plane, or the second reference surface is determined by the geometric center or the force center of the abutment surface, the first impedance center and the second impedance center, or the second reference surface passes through at least one of the geometric center or the force center of the abutment surface, the first impedance center and the second impedance center and extends in a labial-lingual direction, and the second side includes incisal edges of the maxillary anterior teeth.

[0021] Optionally, one of the first portion and the second portion is a protrusion protruding from the teeth, and the other is a protrusion protruding from the teeth or a portion that fits the teeth.

[0022] Optionally, the protrusion is directly connected to the teeth, or the appliance further comprises an appliance body having a cavity for accommodating the teeth, and the protrusion is connected to the appliance body.

[0023] Optionally, the portion that fits the teeth is a tooth area, or the appliance further comprises an appliance body having a cavity for accommodating the teeth, and the portion that fits the teeth is an area of the appliance body that closely fits the teeth.

[0024] Compared with the prior art, the embodiments of the utility model have the advantages that when designing the jaw plate structure, appropriate parameters can be selected according to the orthodontic requirements of the orthodontic step, the individualized design of the jaw plate structure of each orthodontic step can be realized, and the orthodontic effect can be greatly improved; different parameters can make two appliances produce different forces and / or different moments, and different forces and / or different moments can meet the orthodontic requirements of different orthodontic steps. BRIEF DESCRIPTION OF DRAWINGS

[0025] Figure 1 is a schematic view of a dental system of the embodiments of the utility model;

[0026] Figure 2 is a schematic view of the appliance of the embodiments of the utility model (the first design and the second design) worn on the teeth and the first portion and the second portion abutting each other;

[0027] Figure 3 is a schematic view of the appliance of the Nth orthodontic step of the embodiment of the present application worn on the teeth;

[0028] Figure 4 and Figure 5 is a schematic view of the appliance of two different N+Mth orthodontic steps of the embodiment of the present application worn on the teeth;

[0029] Figure 6 is a schematic view of the target jaw position and the initial jaw position of the embodiment of the present application;

[0030] Figure 7 is a schematic view of the mutual abutment of the two protrusions of the first form;

[0031] Figure 8 is a schematic view of the mutual abutment of the protrusion and the part of the tooth to which it is fitted of the second form;

[0032] Figure 9 is a schematic view of the mutual abutment of the first part and the second part of the different orthodontic steps in the first implementation form;

[0033] Figure 10 is a schematic view of the mutual abutment of the first part and the second part in the second implementation form and the third implementation form;

[0034] Figure 11 is a schematic view of the appliance in Figure 10 projected onto the first reference plane;

[0035] Figure 12 is a schematic view of the appliance in Figure 10 in two different orthodontic steps;

[0036] Figure 13 is a schematic view of the mutual abutment of the first part and the second part in the fourth implementation form;

[0037] Figure 14 is a schematic view of the appliance in Figure 13 projected onto the second reference plane;

[0038] Figure 15 is a schematic view of the appliance in Figure 13 in two different orthodontic steps. DETAILED DESCRIPTION

[0039] The present application will be described in detail below with reference to the specific embodiments shown in the drawings. However, these embodiments do not limit the present application, and any changes in structure, method, or function made by those of ordinary skill in the art based on these embodiments are included in the scope of protection of the present application.

[0040] In combination withFigure 1 and Figure 2 is a schematic view of a dental system 200 according to an embodiment of the present application.

[0041] The dental system 200 comprises two aligners 100 corresponding to the Nth treatment step and the N+Mth treatment step, N and M are positive integers.

[0042] Each aligner 100 comprises a jaw plate structure 10 connecting the upper and lower jaws, the jaw plate structure 10 comprises a first part 11 arranged corresponding to the upper teeth T1 and a second part 12 arranged corresponding to the lower teeth T2.

[0043] Optionally, the upper teeth T1 and the lower teeth T2 are anterior teeth or posterior teeth, and here the upper teeth T1 and the lower teeth T2 are both anterior teeth as an example for description.

[0044] When the jaw plate structure 10 connects the upper and lower jaws, the first part 11 and the second part 12 abut against each other to form an abutment surface B.

[0045] The jaw plate structure 10 can have different designs for different treatment steps.

[0046] In the first design, the two jaw plate structures 10 of the two aligners 100 have different parameters, the parameters including at least one of the following: the arrangement position of the jaw plate structure 10, the shape of the abutment surface B, the position of the contact point O formed by the abutment surface B, the direction of the action line L passing through the contact point O.

[0047] The arrangement position of the jaw plate structure 10 is defined as the mounting position of the jaw plate structure 10 in the mounting gap S, and the mounting gap S is the gap for mounting the jaw plate structure 10 formed between the upper and lower jaws.

[0048] Optionally, the arrangement position of the jaw plate structure 10 is, for example, close to the incisal edge Q1 of the upper teeth T1, close to the incisal edge Q2 of the lower teeth T2, located in the region between the incisal edge Q1 of the upper teeth T1 and the incisal edge Q2 of the lower teeth T2, etc.; when the arrangement position of the jaw plate structure 10 is determined, the position of the abutment surface B is also determined.

[0049] The shape of the abutment surface B includes at least one of the following: the geometric shape of the abutment surface B, the extension direction of the abutment surface B.

[0050] Optionally, the abutment surface B can be a plane or a curved surface, when the abutment surface B is a plane, the geometric shape of the abutment surface B is, for example, a regular shape such as a circle, an ellipse, a square, a triangle, or other irregular shape, when the abutment surface B is a curved surface, the geometric shape of the abutment surface B is defined by the curvature of the abutment surface B.

[0051] The extension direction of the abutment surface B is, for example, a horizontal direction, a direction forming different angles with the horizontal direction, etc.

[0052] The position of the contact point O is defined as the spatial position of the geometric center or the force center of the abutment surface B in the installation gap S.

[0053] Optionally, the contact point O refers to the resultant point of all forces acting on the abutment surface B, and the contact point O can be the geometric center or the force center of the abutment surface B.

[0054] The position of the contact point O of the abutment surface B is mainly determined by the shape of the abutment surface B.

[0055] When the abutment surface B is a plane, the contact point O can be the geometric center or the force center of the abutment surface B, the geometric center is defined as the center or the gravity center of the plane, and the force center is defined as the resultant point of all forces acting on the plane, and the force center can overlap with the geometric center.

[0056] When the abutment surface B is a curved surface, the contact point O can be the force center of the curved surface, and the force center is defined as the resultant point of all forces acting on the curved surface.

[0057] The action line L passing through the contact point O is used to represent the resultant force of the mutual abutment of the first part 11 and the second part 12.

[0058] When the abutment surface B is a plane, the action line L is perpendicular to the plane, and when the abutment surface B is a curved surface, the action line L is perpendicular to the tangent plane of the curved surface, and the tangent plane passes through the contact point O of the curved surface.

[0059] In the design of the jaw plate structure 10, appropriate parameters can be selected according to the treatment requirements of the treatment step to realize the individualized design of the jaw plate structure 10 of each treatment step, and the treatment effect can be greatly improved.

[0060] In combination with Figures 3 to 5 , the design process of different parameters is illustrated by way of example.

[0061] In combination with Figure 3 , a schematic view of the appliance 100 of the Nth treatment step worn on the teeth is shown, the first part 11 and the second part 12 abut each other and form an action line L passing through the contact point O.

[0062] In combination with Figure 4 , a schematic view of the appliance 100 of the N+Mth treatment step worn on the teeth is shown, compared with the Nth treatment step, the direction of the action line L of the N+Mth treatment step changes (the action line L of the N+Mth treatment step is more inclined to the labial side), that is, the Nth treatment step and the N+Mth treatment step have different parameters, at least including the direction of the action line L passing through the contact point O.

[0063] In combination with Figure 5Fig. 6 is a schematic view of the wearing of the appliance 100 on the teeth for the N+Mth orthodontic step, compared with the Nth orthodontic step, the position of the abutment surface B changes (the abutment surface B of the N+Mth orthodontic step is closer to the incisal edge Q1 of the maxillary teeth T1), that is, the Nth orthodontic step and the N+Mth orthodontic step have different parameters, at least including the setting position of the jaw plate structure 10.

[0064] In the second design, the two jaw plate structures 10 corresponding to the two appliances 100 have different parameters, and the different parameters are configured to generate different forces and / or different moments of force when the jaw plate structures 10 are connected to the upper and lower jaws.

[0065] The different parameters of the two jaw plate structures 10 can refer to different design parameters of the two jaw plate structures 10 themselves, or can refer to different external forces acting on the two jaw plate structures 10, etc.

[0066] The different parameters can cause the two appliances 100 to generate different forces and / or different moments of force, so as to meet the orthodontic requirements of different orthodontic steps through different forces and / or different moments of force.

[0067] Optionally, when the parameters are the design parameters of the jaw plate structure 10 itself, the selection of the parameters can refer to the first design, but is not limited thereto.

[0068] Optionally, in combination with Figure 6 , the parameters can also be the external force acting on the jaw plate structure 10.

[0069] When the first part 11 and the second part 12 abut against each other, the upper and lower jaws form a target jaw position W1, and the parameters include the occlusal force acting on the jaw plate structure 10 when the target jaw position W1 is formed, that is, the external force at this time is the occlusal force.

[0070] Optionally, the occlusal force corresponding to the target jaw position W1 is positively correlated with the opening degree of the upper and lower jaws, and the opening degree includes the opening angle or the gap between the upper and lower jaws.

[0071] The opening angle between 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.

[0072] The gap between the upper and lower jaws can refer to the downward movement distance of the lower jaw during the rotation of the lower jaw relative to the upper jaw relative to the closed state.

[0073] When the upper and lower jaws are opened to the target jaw position W1, the jaw muscles release to form a force application state, the force application state can make the first part 11 and the second part 12 abut each other and generate a bite force, and when the opening angle between the upper and lower jaws or the gap between the upper and lower jaws is larger, the greater the degree of release of the jaw muscles, the greater the bite force generated by the abutment of the first part 11 and the second part 12, and the bite force is applied to the jaw plate structure 10 and converted into an action force and / or a moment applied to the teeth of the upper and lower jaws.

[0074] Optionally, the Nth treatment step and the N+Mth treatment step have different bite forces, which correspond to different target jaw positions W1 of the Nth treatment step and the N+Mth treatment step. The different target jaw positions W1 can refer to different opening degrees.

[0075] Specifically, the opening angle between the upper and lower jaws in the Nth treatment step is different from the opening angle between the upper and lower jaws in the N+Mth treatment step, or the gap between the upper and lower jaws in the Nth treatment step is different from the gap between the upper and lower jaws in the N+Mth treatment step.

[0076] Optionally, the target jaw position W1 deviates from the initial jaw position W, and the bite force corresponding to the target jaw position W1 is greater than the initial bite force corresponding to the initial jaw position W.

[0077] When the bite force corresponding to the target jaw position W1 is greater than the initial bite force corresponding to the initial jaw position W, the opening angle of the upper and lower jaws corresponding to the target jaw position W1 is greater than the opening angle of the upper and lower jaws corresponding to the initial jaw position W, and the gap between the upper and lower jaws corresponding to the target jaw position W1 is greater than the gap between the upper and lower jaws corresponding to the initial jaw position W.

[0078] The target jaw position W1 may, for example, increase the opening angle of the upper and lower jaws or the gap between the upper and lower jaws by lifting the upper jaw through the abutment of the first part 11 and the second part 12. At this time, the target jaw position W1 deviates from the initial jaw position W before lifting, and the relatively high target jaw position W1 corresponds to a relatively large bite force.

[0079] The initial jaw position W can be a self-defined jaw position or a specific jaw position, and the initial jaw position W has a relatively small initial bite force, while the target jaw position W1 has a relatively large bite force.

[0080] Optionally, the initial jaw position W can be a rest jaw position.

[0081] The rest jaw position can be defined as the position automatically found when the upper and lower jaws are in a normal relaxed state. For example, when the oral cavity is not chewing, not swallowing, and not speaking, the lower jaw is in a resting state, and the dental arches of the upper and lower jaws naturally separate. At this time, the jaw position of the upper and lower jaws is called the rest jaw position, and the initial bite force at this time is zero.

[0082] The rest position can also be a jaw position with a small bite force between the upper and lower jaws, for example, a jaw position with an initial bite force less than a preset value is referred to as a rest position.

[0083] Optionally, in combination Figure 7 and Figure 8 One of the first part 11 and the second part 12 is a protrusion A1 protruding from the teeth, and the other is the protrusion A1 or the part A2 abutting the teeth.

[0084] The protrusion A1 is directly connected to the teeth, or the appliance 100 further comprises an appliance body 101, 102 having cavities S1, S2 accommodating the teeth, and the protrusion A1 is connected to the appliance body 101, 102.

[0085] The protrusion A1 refers to a protruding structure protruding from the teeth (or the appliance body 101, 102).

[0086] The appliance body 101, 102 is a clear aligner matching the teeth, and the appliance body 101, 102 can be an upper appliance body 101 matching the upper teeth and / or a lower appliance body 102 matching the lower teeth, and the cavity S1, S2 can be an upper cavity S1 formed by the upper appliance body 101 to accommodate the upper teeth and / or a lower cavity S2 formed by the lower appliance body 102 to accommodate the lower teeth.

[0087] The part A2 abutting the teeth is a tooth area, or the part A2 abutting the teeth is a region of the appliance body 101, 102 abutting the teeth.

[0088] In combination Figure 7 The first part 11 and the second part 12 are both protrusions A1, and the two protrusions A1 are connected to the upper appliance body 101 and the lower appliance body 102 respectively. In other embodiments, the first part 11 or the second part 12 can also be directly connected to the teeth.

[0089] In combination Figure 8 The first part 11 is a protrusion A1 connected to the upper appliance body 101, and the second part 12 is a part of the lower appliance body 102 abutting the teeth. In other embodiments, the first part 11 can also be directly connected to the teeth, or the second part 12 can also be directly a tooth area.

[0090] Optionally, the entire treatment process can be divided into multiple treatment stages, and the Nth treatment step and the N+Mth treatment step correspond to different treatment stages or the same treatment stage.

[0091] Each of the correction stages comprises at least one of the following: maxillary labial-lingual correction, mandibular labial-lingual correction, maxillary lingual-lingual correction, mandibular lingual-lingual correction, maxillary lowering correction, mandibular lowering correction, maxillary anterior tooth retraction correction, mandibular anterior tooth retraction correction, etc.

[0092] Optionally, different parameters generate different forces and / or moments, the forces can be lowering forces, anterior tooth retraction forces, labial-lingual forces or lingual-lingual forces, etc., and the moments can be labial-lingual moments or lingual-lingual moments.

[0093] Wherein, the labial-lingual forces and moments can achieve labial inclination of teeth, and the lingual-lingual forces and moments can achieve lingual inclination of teeth. In order to facilitate description, the labial-lingual inclination of teeth is described by moments below.

[0094] In combination with Figures 9 to 15 Taking a deep overbite correction scenario as an example, the following describes various implementation forms of the aligner 100 of the Nth correction step and the N+Mth correction step. The jaw plate structure 10 in the aligner 100 of the Nth correction step is arranged corresponding to the maxillary anterior teeth T1 and the mandibular anterior teeth T2, and the jaw plate structure 10 in the aligner 100 of the N+Mth correction step is arranged corresponding to the maxillary anterior teeth T1 and the mandibular anterior teeth T2.

[0095] In the deep overbite correction scenario, when in the uncorrected stage, the maxillary anterior teeth T1 are closer to the labial side than the mandibular anterior teeth T2, and the maxillary anterior teeth T1 cover part of the mandibular anterior teeth T2.

[0096] The aligner 100 of the Nth correction step comprises an upper aligner body 101 worn on the maxilla, a lower aligner body 102 worn on the mandible, and a jaw plate structure 10. The jaw plate structure 10 comprises a first part 11 and a second part 12.

[0097] The first part 11 is arranged corresponding to the lingual side or incisal end Q1 of the maxillary anterior teeth T1, and the second part 12 is arranged corresponding to the labial side or incisal end Q2 of the mandibular anterior teeth T2. Here, the first part 11 is arranged corresponding to the lingual side of the maxillary anterior teeth T1, and the second part 12 is arranged corresponding to the labial side of the mandibular anterior teeth T2.

[0098] The aligner 100 of the N+Mth correction step comprises an upper aligner body 101 worn on the maxilla, a lower aligner body 102 worn on the mandible, and a jaw plate structure 10. The jaw plate structure 10 comprises a first part 11 and a second part 12.

[0099] The first part 11 is arranged corresponding to the lingual side or incisal end Q1 of the maxillary anterior teeth T1, and the second part 12 is arranged corresponding to the labial side or incisal end Q2 of the mandibular anterior teeth T2. Here, the first part 11 is arranged corresponding to the lingual side of the maxillary anterior teeth T1, and the second part 12 is arranged corresponding to the labial side of the mandibular anterior teeth T2.

[0100] In the first implementation form, in combination withFigure 9 The first portion 11 and the second portion 12 of the appliance 100 of the Nth treatment step abut each other to generate a first moment M1, the first moment M1 only includes a maxillary labial moment M11, or the first moment M1 includes the maxillary labial moment M11 and a mandibular labial moment M12.

[0101] The first portion 11 and the second portion 12 of the appliance 100 of the Nth treatment step abut each other to generate a first moment M1, the first moment M1 only includes a maxillary labial moment M11, or the first moment M1 includes the maxillary labial moment M11 and a mandibular labial moment M12.

[0102] When the first moment M1 only includes the maxillary labial moment M11, the first moment M1 only achieves the labial tipping of the maxillary anterior tooth T1.

[0103] When the first moment M1 includes the maxillary labial moment M11 and the mandibular labial moment M12, the first moment M1 simultaneously achieves the labial tipping of the maxillary anterior tooth T1 and the labial tipping of the mandibular anterior tooth T2.

[0104] When the second moment M2 includes the maxillary labial moment M21 and the mandibular labial moment M22, the second moment M2 simultaneously achieves the labial tipping of the maxillary anterior tooth T1 and the labial tipping of the mandibular anterior tooth T2.

[0105] The absolute value of the force arm corresponding to the maxillary labial moment M11 in the first moment M1 is not less than the absolute value of the force arm corresponding to the maxillary labial moment M21 in the second moment M2, that is, the degree of labial tipping of the maxillary anterior tooth T1 in the Nth treatment step is not less than the degree of labial tipping of the maxillary anterior tooth T1 in the N+Mth treatment step.

[0106] The absolute value of the force arm corresponding to the mandibular labial moment M12 in the first moment M1 is not greater than the absolute value of the force arm corresponding to the mandibular labial moment M22 in the second moment M2, that is, the degree of labial tipping of the mandibular anterior tooth T2 in the Nth treatment step is not greater than the degree of labial tipping of the mandibular anterior tooth T2 in the N+Mth treatment step.

[0107] In the first implementation form, the entire treatment process is roughly divided into three treatment stages, the first treatment stage mainly achieves the maxillary anterior tooth labial tipping and pressure reduction treatment, the second treatment stage mainly achieves the mandibular anterior tooth labial tipping and pressure reduction treatment, and the third treatment stage mainly achieves the maxillary anterior tooth pressure reduction treatment and the mandibular anterior tooth pressure reduction treatment.

[0108] The maxillary anterior tooth T1 in the Nth treatment step can produce a relatively large labial tipping, and the Nth treatment step can correspond to the first treatment stage; the mandibular anterior tooth T2 in the N+Mth treatment step can produce a relatively large labial tipping, and the N+Mth treatment step can correspond to the second treatment stage.

[0109] In the first treatment stage, taking the Nth treatment step of the first treatment stage as an example, since the upper anterior teeth T1 and the lower anterior teeth T2 are usually relatively vertical, a relatively large upper labial torque M11 can be provided to preferentially adjust the relative positions of the upper anterior teeth T1 and the alveolar bone by a large amplitude, and the relative positions of the lower anterior teeth T2 and the alveolar bone can not be adjusted, or a relatively small lower labial torque M12 is provided to adjust the relative positions of the lower anterior teeth T2 and the alveolar bone by a small amplitude.

[0110] Optionally, while the upper anterior teeth T1 are labially inclined, the upper anterior teeth T1 can also be lowered to a certain extent, that is, the first treatment stage mainly implements the labial inclination and lowering of the upper anterior teeth.

[0111] In the first treatment stage, the main purpose is to implement the labial inclination and lowering of the upper anterior teeth T1, but auxiliary treatment functions can also be implemented, for example, the labial inclination and lowering of the lower anterior teeth T2 are also implemented.

[0112] In the second treatment stage, taking the N+Mth treatment step of the second treatment stage as an example, the labial inclination of the upper anterior teeth T1 has progressed to a certain extent, at this time, a smaller upper labial torque M21 can be provided to avoid excessive labial inclination of the upper anterior teeth T1, and at the same time, a larger lower labial torque M22 can be provided to adjust the relative positions of the lower anterior teeth T2 and the alveolar bone by a large amplitude.

[0113] Optionally, while the lower anterior teeth T2 are labially inclined, the lower anterior teeth T2 can also be lowered to a certain extent, that is, the second treatment stage mainly implements the labial inclination and lowering of the lower anterior teeth T2.

[0114] In the second treatment stage, the main purpose is to implement the labial inclination and lowering of the lower anterior teeth T2, but auxiliary treatment functions can also be implemented, for example, the labial inclination and lowering of the upper anterior teeth T1 are also implemented.

[0115] In the third treatment stage, when the labial inclination of the upper anterior teeth T1 and the labial inclination of the lower anterior teeth T2 have reached a certain extent, the deep overbite condition has also been improved to a certain extent, and there is a certain space between the upper anterior teeth T1 and the lower anterior teeth T2 to implement absolute lowering.

[0116] The absolute lowering mainly refers to the force generated by the mutual abutment of the first part 11 and the second part 12 mainly implements lowering, for example, the first part 11 can be arranged close to or directly arranged at the incisal end Q1 of the upper anterior teeth T1, and the second part 12 can be arranged close to or directly arranged at the incisal end Q2 of the lower anterior teeth T2, so that a larger proportion of the force is used to implement the lowering of the upper anterior teeth T1 and the lower anterior teeth T2, that is, the third treatment stage mainly implements the upper anterior teeth lowering treatment and the lower anterior teeth lowering treatment.

[0117] Optionally, the Nth treatment step and the N+Mth treatment step in the first implementation form can also correspond to the same treatment stage, for example, the Nth treatment step and the N+Mth treatment step are both used to implement the upper anterior teeth labial tipping and intrusion treatment, and the upper labial tipping moments generated by the Nth treatment step and the N+Mth treatment step are different.

[0118] In the second implementation form, in combination with Figures 10 to 12 , the action line L forms a first projection line L' at the first reference surface P1, the first projection point R1' of the first resistance center R1 defined by the upper anterior teeth T1 at the first reference surface P1 is located on the first side E1 of the first projection line L', and the second projection point R2' of the second resistance center R2 defined by the lower anterior teeth T2 at the first reference surface P1 is located on the first side E1 of the first projection line L' or on the first projection line L'.

[0119] The action line L passes through the contact point O of the abutment surface B (that is, the action line L passes through the geometric center or the force center of the abutment surface B).

[0120] The first side E1 includes the incisal edge Q2 of the lower anterior teeth T2, and the first side E1 is the right side area of the first projection line L'.

[0121] The first reference surface P1 is parallel to the sagittal plane, and the sagittal plane is a longitudinal section that divides the entire dentognathic system into left and right parts.

[0122] Alternatively, the first reference surface P1 passes through the action line L and extends in the labial-lingual direction X.

[0123] The first projection point R1' and the first projection line L' have a vertical spacing, the first vertical spacing H1 and the second vertical spacing H2 of the Nth treatment step and the N+Mth treatment step of the appliance 100 respectively, and the first vertical spacing H1 is not less than the second vertical spacing H2.

[0124] The first vertical spacing H1 and the second vertical spacing H2 can be used to represent the size of the labial tipping moment M1' generated by the upper anterior teeth T1, and when the first vertical spacing H1 is not less than the second vertical spacing H2, it can be represented that the labial tipping moment M1' generated by the upper anterior teeth T1 in the Nth treatment step is not less than the labial tipping moment M1' generated by the upper anterior teeth T1 in the N+Mth treatment step.

[0125] The vertical spacing between the first projection point R1' and the first projection line L' is positively correlated with the labial tipping moment M1' generated by the upper anterior teeth T1, and the labial tipping moment M1' generated by the upper anterior teeth T1 in each treatment step can be adjusted by controlling the vertical spacing.

[0126] The upper anterior teeth T1 in the Nth treatment step in the second implementation form can generate a relatively large labial tipping, which is suitable for the first treatment stage in the first implementation form.

[0127] In a third implementation form, the first reference plane P1 is parallel to a sagittal plane, the sagittal plane being a longitudinal plane that divides the whole dentognathic system into left and right parts. Figures 10 to 12 The action line L forms a first projection line L' at the first reference plane P1, the first impedance center R1 defined by the maxillary anterior tooth T1 forms a first projection point R1' at the first reference plane P1, the first projection point R1' being located at a first side E1 of the first projection line L', and the second impedance center R2 defined by the mandibular anterior tooth T2 forms a second projection point R2' at the first reference plane P1, the second projection point R2' being located at the first side E1 of the first projection line L' or on the first projection line L'.

[0128] The action line L passes through the contact point O of the abutment surface B (i.e. the geometric center or the force center of the abutment surface B).

[0129] The first side E1 includes the incisal edge Q2 of the mandibular anterior tooth T2, and the first side E1 is a right side region of the first projection line L'.

[0130] The first reference plane P1 is parallel to a sagittal plane, the sagittal plane being a longitudinal plane that divides the whole dentognathic system into left and right parts.

[0131] Alternatively, the first reference plane P1 passes through the action line L and extends along the labiolingual direction X.

[0132] The second projection point R1' and the first projection line L' have a vertical distance, the third vertical distance H3 and the fourth vertical distance H4 of the aligner 100 of the Nth treatment step and the aligner 100 of the N+Mth treatment step respectively, and the third vertical distance H3 is not greater than the fourth vertical distance H4.

[0133] The third vertical distance H3 and the fourth vertical distance H4 can be used to represent the size of the labial tipping moment M2' generated by the mandibular anterior tooth T2, and when the third vertical distance H3 is not greater than the fourth vertical distance H4, it can be represented that the labial tipping moment M2' generated by the mandibular anterior tooth T2 of the Nth treatment step is not greater than the labial tipping moment M2' generated by the mandibular anterior tooth T2 of the N+Mth treatment step.

[0134] The vertical distance between the second projection point R2' and the first projection line L' is positively correlated with the labial tipping moment M2' generated by the mandibular anterior tooth T2, and the labial tipping moment M2' generated by the mandibular anterior tooth T2 of each treatment step can be adjusted by controlling the vertical distance.

[0135] The mandibular anterior tooth T2 of the N+Mth treatment step in the third implementation form can generate a relatively large labial tipping, and is suitable for the second treatment stage in the first implementation form.

[0136] In a fourth implementation form, the first reference plane P1 is parallel to a sagittal plane, the sagittal plane being a longitudinal plane that divides the whole dentognathic system into left and right parts. Figures 13 to 15 The impedance center connecting segment D forms a second projection line segment D'' at the second reference plane P2, and the contact point O of the abutment surface B (i.e. the geometric center or the force center of the abutment surface B) forms a third projection point O' at the second reference plane P2, the third projection point O' being located at a second side E2 of the second projection line segment D''.

[0137] The two end points of the impedance center connecting segment D are a first impedance center R1 defined by the maxillary anterior teeth T1 and a second impedance center R2 defined by the mandibular anterior teeth T2.

[0138] The second reference plane P2 is parallel to a sagittal plane, which is a longitudinal plane that divides the entire dentognathic system into left and right parts.

[0139] Alternatively, the second reference plane P2 is determined by the geometric center O or the force center O of the abutment surface B, the first impedance center R1, and the second impedance center R2, i.e., three points determine the second reference plane P2.

[0140] Alternatively, the second reference plane P2 passes through at least one of the geometric center O or the force center O of the abutment surface B, the first impedance center R1, and the second impedance center R2 and extends in the labial-lingual direction X, i.e., at least one point and the labial-lingual direction X determine the second reference plane P2.

[0141] The second side E2 includes the incisal edge Q1 of the maxillary anterior teeth T1, and the second side E2 is a left side region of the second projection line segment D’’.

[0142] The third projection point O’ has a vertical distance from the second projection line segment D’’, and the appliance 100 of the Nth correction step and the appliance 100 of the N+Mth correction step have a first vertical distance K1 and a second vertical distance K2, respectively, and the second vertical distance K2 is not less than the first vertical distance K1.

[0143] The first vertical distance K1 and the second vertical distance K2 can be used to represent the design space of the labial tipping moment of the maxillary and mandibular anterior teeth. When the vertical distance is larger, the design space of the labial tipping moment of the maxillary and mandibular anterior teeth is larger, and a relatively larger labial tipping moment of the corresponding maxillary anterior teeth T1 or a relatively larger labial tipping moment of the corresponding mandibular anterior teeth T2 can be designed, thereby achieving a larger labial tipping of the maxillary anterior teeth or a larger labial tipping of the mandibular anterior teeth.

[0144] Optionally, the dental system 200 of the present embodiment can also be used in other application scenarios or in other deep overbite correction scenarios. In the following, several other application scenarios are briefly introduced.

[0145] In the first other application scenario, the first correction stage mainly implements maxillary lingual tipping and pressure reduction correction, the second correction stage mainly implements mandibular labial tipping and pressure reduction correction, and the third correction stage mainly implements maxillary pressure reduction correction and mandibular pressure reduction correction. Different appliances 100 can be matched according to different correction requirements of each correction stage.

[0146] In the second other application scenario, the first correction stage mainly implements maxillary labial tipping and pressure reduction correction, and the second correction stage mainly implements mandibular lingual tipping and pressure reduction correction. Different appliances 100 can be matched according to different correction requirements of each correction stage.

[0147] In summary, the jaw plate structure 10 is designed, and appropriate parameters can be selected according to the treatment requirements of the treatment step, the individualized design of the jaw plate structure 10 of each treatment step is realized, and the treatment effect can be greatly improved; different parameters can make two appliances 100 produce different forces and / or different moments, and different forces and / or different moments are used to meet the treatment requirements of different treatment steps.

[0148] It should be understood that although the present specification is described in terms of embodiments, not every embodiment contains only one independent technical solution, and the description of the specification is only for the sake of clarity, and those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can be appropriately combined to form other embodiments that those skilled in the art can understand.

[0149] The series of detailed descriptions listed above are only specific descriptions of the feasible embodiments of the utility model, and they are not used to limit the protection scope of the utility model, and equivalent embodiments or changes made without departing from the spirit of the utility model art should be included in the protection scope of the utility model.

Claims

1. A dental system, characterized by The two appliances correspond to the Nth treatment step and the N+Mth treatment step, N and M are positive integers, each appliance comprises a jaw plate structure connecting the upper and lower jaws, the jaw plate structure comprises a first part arranged corresponding to the upper jaw teeth and a second part arranged corresponding to the lower jaw teeth, when the jaw plate structure connects the upper and lower jaws, the first part and the second part abut each other to form an abutment surface, the two jaw plate structures of the two appliances have different parameters, the different parameters are configured to generate different forces and / or different moments when the jaw plate structure connects the upper and lower jaws.

2. A dental system, characterized by The two appliances correspond to the Nth treatment step and the N+Mth treatment step, N and M are positive integers, each appliance comprises a jaw plate structure connecting the upper and lower jaws, the jaw plate structure comprises a first part arranged corresponding to the upper jaw teeth and a second part arranged corresponding to the lower jaw teeth, when the jaw plate structure connects the upper and lower jaws, the first part and the second part abut each other to form an abutment surface, the two jaw plate structures of the two appliances have different parameters, the parameters include at least one of the following: the arrangement position of the jaw plate structure, the shape of the abutment surface, the position of the contact point formed by the abutment surface, the direction of the action line passing through the contact point, wherein the arrangement position of the jaw plate structure is defined as the installation position of the jaw plate structure in the installation gap, the installation gap is the gap formed between the upper and lower jaws for installing the jaw plate structure; the shape of the abutment surface includes at least one of the following: the geometric shape of the abutment surface, the extension direction of the abutment surface; the contact point position is defined as the spatial position of the geometric center or the force center of the abutment surface in the installation gap.

3. The dental system according to any one of claims 1-2, wherein, The abutment surface is a plane.

4. The dental system according to any one of claims 1-2, wherein, When the first part and the second part abut each other, the upper and lower jaws form a target jaw position, and the parameters include the occlusal force acting on the jaw plate structure when the upper and lower jaws are in the target jaw position.

5. The dental system of claim 4, wherein, The occlusal force is positively correlated with the opening degree of the upper and lower jaws corresponding to the target jaw position, and the opening degree includes the opening angle or the gap between the upper and lower jaws.

6. The dental system of claim 4, wherein, The target jaw position deviates from a starting jaw position, and the occlusal force corresponding to the target jaw position is greater than a starting occlusal force corresponding to the starting jaw position.

7. The dental system of claim 6, wherein, The starting jaw position is a rest jaw position, and the starting occlusal force is zero or less than a preset value.

8. The dental system of claim 6, wherein, The opening angle of the upper and lower jaws corresponding to the target jaw position is greater than the opening angle of the upper and lower jaws corresponding to the starting jaw position, and the gap of the upper and lower jaws corresponding to the target jaw position is greater than the gap of the upper and lower jaws corresponding to the starting jaw position.

9. The dental system according to any one of claims 1-2, wherein, The different parameters generate different forces and / or different moments, the forces are intrusion forces, anterior tooth retraction forces, labial or buccal tipping forces, or lingual tipping forces, and the moments are labial or buccal tipping moments or lingual tipping moments.

10. The dental system of any one of claims 1-2, wherein, The Nth treatment step and the N+Mth treatment step correspond to different treatment stages or the same treatment stage, and each treatment stage includes at least one of the following: upper jaw labial and buccal tipping treatment, lower jaw labial and buccal tipping treatment, upper jaw lingual tipping treatment, lower jaw lingual tipping treatment, upper jaw intrusion treatment, lower jaw intrusion treatment, upper jaw anterior tooth retraction treatment, and lower jaw anterior tooth retraction treatment.

11. The dental system of any one of claims 1-2, wherein, The first part of the Nth treatment step and the first part of the N+Mth treatment step are arranged corresponding to the lingual side or incisal end of the maxillary anterior teeth, and the second part of the Nth treatment step and the second part of the N+Mth treatment step are arranged corresponding to the labial side or incisal end of the mandibular anterior teeth, the first part and the second part of the Nth treatment step abut each other to generate a first moment, the first part and the second part of the N+Mth treatment step abut each other to generate a second moment, the first moment only includes a maxillary labial tipping moment or the first moment includes a maxillary labial tipping moment and a mandibular labial tipping moment, and the second moment includes a maxillary labial tipping moment and a mandibular labial tipping moment.

12. The dental system of claim 11, wherein, An absolute value of a force arm corresponding to the maxillary labial tipping moment in the first moment is not less than an absolute value of a force arm corresponding to the maxillary labial tipping moment in the second moment.

13. The dental system of claim 11, wherein, An absolute value of a force arm corresponding to the mandibular labial tipping moment in the first moment is not greater than an absolute value of a force arm corresponding to the mandibular labial tipping moment in the second moment.

14. The dental system of any one of claims 1-2, wherein, The first part is arranged corresponding to the lingual side or incisal end of the maxillary anterior teeth, the second part is arranged corresponding to the labial side or incisal end of the mandibular anterior teeth, an action line forms a first projection line at a first reference surface, a first projection point of a first resistance center defined by the maxillary anterior teeth at the first reference surface is located on a first side of the first projection line, a second projection point of a second resistance center defined by the mandibular anterior teeth at the first reference surface is located on the first side of the first projection line or on the first projection line, the second projection point and the first projection line have a vertical spacing, the Nth treatment step and the N+Mth treatment step have a first vertical spacing and a second vertical spacing respectively, the first vertical spacing is not less than the second vertical spacing, the action line passes through a geometric center or a force center of the abutment surface, the first side includes the incisal end of the mandibular anterior teeth, the first reference surface is parallel to a sagittal plane, or the first reference surface passes through the action line and extends in a labial-lingual direction.

15. The dental system of any one of claims 1-2, wherein, The first part is arranged corresponding to the lingual side or incisal end of the maxillary anterior teeth, the second part is arranged corresponding to the labial side or incisal end of the mandibular anterior teeth, an action line forms a first projection line at a first reference surface, a first projection point of a first resistance center defined by the maxillary anterior teeth at the first reference surface is located on a first side of the first projection line, a second projection point of a second resistance center defined by the mandibular anterior teeth at the first reference surface is located on the first side of the first projection line or on the first projection line, the second projection point and the first projection line have a vertical spacing, the Nth treatment step and the N+Mth treatment step have a third vertical spacing and a fourth vertical spacing respectively, the third vertical spacing is not greater than the fourth vertical spacing, the action line passes through a geometric center or a force center of the abutment surface, the first side includes the incisal end of the mandibular anterior teeth, the first reference surface is parallel to a sagittal plane, or the first reference surface passes through the action line and extends in a labial-lingual direction.

16. The dental system of any one of claims 1-2, wherein, The first portion corresponds to the lingual side of the upper anterior teeth, the second portion corresponds to the labial side of the lower anterior teeth, the impedance center connecting line segment forms a second projection line segment at the second reference surface, the geometric center or the force center of the abutment surface at the third projection point on the second reference surface is located on the second side of the second projection line segment, the vertical distance between the third projection point and the second projection line segment, the dental system of the Nth correction step and the dental system of the N+Mth correction step have a first vertical distance and a second vertical distance respectively, the second vertical distance is not less than the first vertical distance, the two end points of the impedance center connecting line segment are the first impedance center defined by the upper anterior teeth and the second impedance center defined by the lower anterior teeth respectively, the second reference surface is parallel to the sagittal plane, or the second reference surface is determined by the geometric center or the force center of the abutment surface, the first impedance center and the second impedance center, or the second reference surface passes through at least one of the geometric center or the force center of the abutment surface, the first impedance center and the second impedance center and extends in the labial-lingual direction, and the second side includes the incisal edge of the upper anterior teeth.

17. The dental system of any one of claims 1-2, wherein, One of the first portion and the second portion is a protrusion protruding from the teeth, and the other is a protrusion protruding from the teeth or a portion that fits the teeth.

18. The dental system of claim 17, wherein, The protrusion is directly connected to the teeth, or the appliance further comprises an appliance body having a cavity accommodating the teeth, and the protrusion is connected to the appliance body.

19. The dental system of claim 17, wherein, The portion that fits the teeth is a tooth region, or the appliance further comprises an appliance body having a cavity accommodating the teeth, and the portion that fits the teeth is a region of the appliance body that closely fits the teeth.

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