Dental appliance

Abstract

The invention discloses a dental orthodontic appliance which comprises an upper jaw orthodontic appliance, a lower jaw orthodontic appliance and an elastic connecting piece for connecting the upper jaw orthodontic appliance and the lower jaw orthodontic appliance, when the upper jaw appliance and the lower jaw appliance are in an occlusion state, the elastic connecting piece is in a stress compression state or a bending state and applies a force for driving the upper jaw appliance and the lower jaw appliance to be far away from each other. The upper jaw appliance body and the lower jaw appliance body are elastically connected together through the elastic connecting piece, when teeth of a patient are occluded together, the elastic connecting piece is stressed and generates elastic force, the upper jaw appliance body and the lower jaw appliance body are pressed on the teeth of the patient through the elastic force, and fixing of the appliance can be achieved without additionally arranging a fixing structure; therefore, the correction effect on children and other patients with insufficient tooth accessory adding space is improved.

Description

Technical Field

[0001] The present invention relates to the field of dental correction, and in particular to a dental correction appliance. Background Art

[0002] Malocclusion refers to the deformity of teeth, jaw, and craniofacial structure caused by congenital genetic factors or acquired environmental factors during the growth and development of children. Such as uneven teeth, protruding upper teeth, tilted chin, crooked mouth, etc. With the continuous deepening of clinical research, the concept of malocclusion in modern times is far from only referring to the misalignment and uneven arrangement of teeth, but refers to a variety of deformities caused by the imbalance between teeth and craniofacial structure. The harm of malocclusion is mainly reflected in four aspects: function, beauty, health and psychology. It affects the normal function of children's oral functions, such as chewing function, pronunciation function, and breathing function.

[0003] Children in the period of tooth replacement generally have shorter teeth, and there is often insufficient space to add accessories to the teeth. As a result, the invisible braces cannot be well retained during the treatment process, affecting the treatment effect. Summary of the invention

[0004] The technical problem to be solved by the present invention is to provide a dental correction device to overcome the defect in the prior art that the teeth of children in the edentulous period are generally short, and there is often insufficient space for adding accessories on the teeth, so that the invisible braces cannot be well fixed during the correction process, affecting the correction effect.

[0005] The present invention solves the above technical problems through the following technical solutions:

[0006] A dental correction appliance, comprising an upper jaw correction appliance, a lower jaw correction appliance and elastic connecting pieces respectively connecting the upper jaw correction appliance and the lower jaw correction appliance;

[0007] When the maxillary appliance and the mandibular appliance are in an occlusal state, the elastic connecting member is in a compressed state or a bent state and applies a force to drive the maxillary appliance and the mandibular appliance to move away from each other.

[0008] In the present solution, the above-mentioned structure is adopted, and the maxillary appliance and the mandibular appliance are elastically connected together by an elastic connector. When the patient's teeth are bitten together, the elastic connector is bent or compressed by force and generates elastic force. The elastic force is used to separate the upper and lower mandibular appliances from each other and press them onto the patient's teeth respectively. The retention of the appliances can be achieved without setting up a separate fixing structure, thereby improving the correction effect for patients such as children who have insufficient space for adding accessories to their teeth.

[0009] Preferably, the elastic connecting member is in a compressed state or a bent state to exert a force that drives the maxillary appliance and the mandibular appliance to move away from each other in a vertical direction.

[0010] In this solution, the above structure is adopted, and the bending and compression of the elastic connecting member can generate a force that moves the maxillary appliance and the mandibular appliance away from each other in the vertical direction, thereby generating a force to expand the upper and lower jaws of the patient, thereby achieving a downward effect.

[0011] Preferably, when the elastic connecting piece is in a natural state, there is a preset gap between the maxillary appliance and the mandibular appliance;

[0012] The preset gap is greater than the distance between the maxillary appliance and the mandibular appliance when the patient is in the rest jaw position.

[0013] In this solution, the above structure is adopted, and the preset gap is used to reflect the elastic coefficient of the elastic connector. When the distance between the upper and lower jaw appliances is greater than the preset gap, the elastic connector is in a natural state without deformation and therefore will not generate elastic force, which is convenient for installing and removing the dental appliance. The preset gap is set to be larger than the distance between the upper and lower jaw appliances when the patient is in the resting jaw position. The elastic connector will open the upper and lower jaw appliances by a certain distance and ensure that the distance opened by the elastic connector in the natural state is larger than the distance between the upper and lower teeth of the patient in the resting jaw position. This can ensure that when the patient wears the dental appliance, the elastic connector will deform when the upper and lower teeth are in the natural occlusal state, and the resulting rebound force will fix the upper and lower jaw appliances on the teeth, thereby improving the fixing effect.

[0014] Preferably, the preset gap is greater than the distance between the maxillary appliance and the mandibular appliance when the patient's upper and lower jaws are at their maximum mouth opening.

[0015] In the present solution, the above structure is adopted, and the preset gap is further larger than the maximum opening distance of the patient's upper and lower teeth, so that when the patient is in all occlusal positions, the elastic connector will deform and the rebound force generated will fix the upper and lower jaw appliances on the teeth, making the dental appliance more firmly fixed and not easy to fall off.

[0016] Preferably, the dental orthodontic appliance comprises a plurality of elastic connectors, and the plurality of elastic connectors are distributed at different positions.

[0017] In this solution, the above structure is adopted, and a plurality of elastic connectors are provided, which are dispersedly distributed and connected at multiple points, so that the force between the upper and lower jaw appliances is more balanced.

[0018] Preferably, the plurality of elastic connecting members are disposed symmetrically with respect to the sagittal direction.

[0019] In this solution, the above structure is adopted, and the elastic connecting parts are symmetrically distributed on both sides, so that the force between the upper and lower jaw appliances is further balanced.

[0020] Preferably, the elastic coefficients of the multiple elastic connectors can be set to be different. Or,

[0021] The elastic coefficients of multiple said elastic connectors can be set to be the same.

[0022] In this solution, adopting the above structure, when they are set to be different, it is convenient to separately set the supporting forces at different positions of the patient's teeth according to the treatment needs. For example, the elastic coefficient of the elastic connector at the anterior tooth position is set to be larger so that the elastic force at the anterior tooth position is larger to achieve intrusion of the anterior teeth, or the elastic coefficient of the elastic connector at the posterior tooth position is set to be larger so that the elastic force at the posterior tooth position is larger to achieve intrusion of the posterior teeth, etc. If there is no such treatment requirement, they can also be set to be the same so that the elastic forces at each position tend to be the same.

[0023] Preferably, the elastic connectors are respectively connected to the buccal surfaces of the maxillary appliance and the mandibular appliance;

[0024] Or,

[0025] the elastic connectors are respectively connected to the lingual surfaces of the maxillary appliance and the mandibular appliance;

[0026] Or,

[0027] the elastic connectors are respectively connected to the occlusal surfaces of the maxillary appliance and the mandibular appliance.

[0028] In this solution, adopting the above structure, the setting positions can set the elastic connectors at different positions in the oral cavity according to different conditions of the patient, which is more convenient for orthodontic treatment.

[0029] Preferably, the preset gap of the elastic connector is significantly larger than the distance between the maxillary appliance and the mandibular appliance when the patient opens the mouth maximally up and down so that the elastic force of the elastic connector remains basically unchanged during the process of the teeth changing from tight occlusion to maximum mouth opening; or,

[0030] the preset gap of the elastic connector is close to the distance between the maxillary appliance and the mandibular appliance when the patient opens the mouth maximally up and down so that the elastic force of the elastic connector decreases gradually during the process of the teeth changing from tight occlusion to maximum mouth opening.

[0031] In this solution, with the above structure, the elastic force can be adjusted and controlled, and the preset gap of the elastic connecting member can be set to different values according to the conditions and correction requirements of different patients. When the preset gap of the selected elastic connecting member is significantly larger than the distance between the maxillary appliance and the mandibular appliance when the patient's upper and lower jaws are opened maximally, when the patient wears this tooth correction appliance, the elastic connecting member has already undergone a large degree of deformation. Therefore, when the patient further bites, the degree of deformation does not change much overall, resulting in little change in the generated elastic force. This method can achieve a relatively low and stable change in the correction force received by the patient in most cases after wearing. When the preset gap of the selected elastic connecting member is close to the distance between the maxillary appliance and the mandibular appliance when the patient's upper and lower jaws are opened maximally, when the patient wears this tooth correction appliance, the elastic connecting member can change in a state gradient from hardly deformed to significantly deformed. Therefore, when the patient further bites, the degree of deformation changes significantly overall with the degree of occlusion, resulting in a corresponding gradient change in the generated elastic force with different degrees of occlusion. This method can dynamically adjust the elastic force received by the patient according to the degree of occlusion after wearing.

[0032] Preferably, the dental appliance further includes a second elastic member, which is disposed on the jaw surface corresponding to the position of the anterior teeth or posterior teeth of the patient on the maxillary appliance or the mandibular appliance. When the maxillary appliance and the mandibular appliance are in an occlusal state, the second elastic member is in a state of being compressed or bent under force and applies a force to drive the maxillary appliance and the mandibular appliance to move away from each other in the vertical direction;

[0033] Preferably, the protrusion height of the second elastic member towards the maxillary appliance or the mandibular appliance in the natural state is lower than the preset gap.

[0034] In this solution, with the above structure, by setting the second elastic member, the elastic force on the teeth can be increased separately at the position of the anterior teeth or posterior teeth of the patient. Furthermore, when the patient bites, the additional resilience generated by the second elastic member can depress the anterior teeth or posterior teeth. In addition, the second elastic member can be arranged at a different position from the elastic connecting member, and the jaw position where it generates resilience can also be different from that of the elastic connecting member to meet more correction requirements.

[0035] Preferably, the elastic connecting member includes connection interfaces for connecting with the maxillary appliance and the mandibular appliance and elastic elements detachably connected to the two connection interfaces respectively.

[0036] In this solution, with the above structure, by setting the detachable connection interfaces and elastic elements, the elastic elements can be replaced conveniently, and the selection and replacement of elastic elements of different specifications can be realized to achieve the effect of adjusting the elastic force.

[0037] Preferably, the elastic element can be one of polymer materials, metal materials, composite materials, and magnetic materials.

[0038] In this solution, by adopting the above structure, an elastic element made of a corresponding material can be selected according to the material characteristics and the treatment needs of the patient.

[0039] Preferably, the elastic element can generate elastic force through structural bending, and the bending direction of the elastic element can be towards the buccal side, lingual side, mesial or distal direction.

[0040] In this solution, by adopting the above structure, the elastic element can obtain elasticity and generate elastic force by bending its structure, and the bending direction of the elastic element can be preset to different directions within the patient's oral cavity, such as the buccal side, lingual side, or the extending direction of the patient's teeth.

[0041] The positive and progressive effects of the present invention are as follows: The present invention discloses a dental orthodontic appliance, in which the maxillary orthodontic appliance and the mandibular orthodontic appliance are elastically connected together by an elastic connecting member. When the patient's teeth are occluded, the elastic connecting member is stressed and generates elastic force. The elastic force is used to press the upper and lower orthodontic appliances against the patient's teeth respectively, and the retention of the orthodontic appliance can be achieved without separately setting a fixing structure, thereby improving the orthodontic effect on patients with insufficient space for adding attachments to teeth, such as children. BRIEF DESCRIPTION OF THE DRAWINGS

[0042] Figure 1 It is a schematic structural diagram of the dental orthodontic appliance according to Embodiment 1 of the present invention.

[0043] Figure 2 It is a schematic structural diagram of the elastic connecting member of the dental orthodontic appliance according to Embodiment 1 of the present invention in a natural state.

[0044] Figure 3 It is a schematic structural diagram of the elastic connecting member of the dental orthodontic appliance according to Embodiment 1 of the present invention in a bent state.

[0045] Figure 4 It is a schematic structural diagram of the elastic connecting member of the dental orthodontic appliance according to Embodiment 2 of the present invention in a natural state.

[0046] Figure 5 It is a schematic structural diagram of the elastic connecting member of the dental orthodontic appliance according to Embodiment 2 of the present invention in a bent state.

[0047] Figure 6 It is a schematic structural diagram of the elastic connecting member of the dental orthodontic appliance according to Embodiment 3 of the present invention in a natural state.

[0048] Figure 7 It is a schematic structural diagram of the elastic connecting member of the dental orthodontic appliance according to Embodiment 3 of the present invention in a bent state.

[0049] Figure 8 This is a schematic structural diagram of the elastic connector of the dental orthodontic appliance in Example 4 of the present invention in a natural state.

[0050] Figure 9 This is a schematic structural diagram of the elastic connecting piece of the dental orthodontic appliance in Example 4 of the present invention in a bent state.

[0051] Figure 10 This is a schematic structural diagram of the elastic connector of the dental orthodontic appliance in Example 5 of the present invention in a natural state.

[0052] Figure 11 This is a schematic structural diagram of the elastic connecting member of the dental orthodontic appliance in Example 5 of the present invention in a compressed state.

[0053] Description of reference numerals:

[0054] Maxillary appliance 1

[0055] Mandibular appliance 2

[0056] Elastic connector 3

[0057] Front tooth elastic connector 301

[0058] Posterior tooth elastic connector 302

[0059] Connection interface 31

[0060] Elastic element 32

[0061] The second elastic member 4 DETAILED DESCRIPTION

[0062] The present invention is further described below by way of examples, but the present invention is not limited to the scope of the examples.

[0063] Example 1

[0064] like Figure 1As shown in the figure, this embodiment discloses a dental orthodontic appliance, which includes an upper orthodontic appliance 1, a lower orthodontic appliance 2, and an elastic connecting member 3 that connects the upper orthodontic appliance 1 and the lower orthodontic appliance 2 respectively. When the elastic connecting member 3 is in its natural state, the upper orthodontic appliance 1 and the lower orthodontic appliance 2 are in a specific relative position, which is related to the orthodontic position of the orthodontic treatment and determines the direction and magnitude of the traction force applied to the teeth after the patient wears it. At this position, the vertical distance between the upper orthodontic appliance 1 and the lower orthodontic appliance 2 is a preset gap. When the upper orthodontic appliance and the lower orthodontic appliance are in the occlusal state, the elastic connecting member is in a force-compressed state or a bent state and applies a force to drive the upper orthodontic appliance and the lower orthodontic appliance to move away from each other. This dental orthodontic appliance can be an invisible orthodontic appliance or other conventional dental orthodontic appliances in this field.

[0065] The dental orthodontic appliance in this embodiment is used to be worn on the teeth of a patient. Its orthodontic principle is that through this dental orthodontic appliance, the upper and lower teeth of the patient are guided and pulled to a fixed position (orthodontic position) to be held and fixed, and finally the correction treatment of the patient's malocclusion deformity is realized. The upper orthodontic appliance 1 and the lower orthodontic appliance 2 in this embodiment correspond to the upper and lower teeth of the patient and are used to be worn on the upper and lower teeth of the user. An elastic connecting member 3 is provided between the upper orthodontic appliance 1 and the lower orthodontic appliance 2 and is connected through this elastic connecting member 3, so that the originally separately arranged upper orthodontic appliance 1 and lower orthodontic appliance 2 can be connected into one body. At the same time, because the elastic connecting member has elasticity, the relative positions of the upper orthodontic appliance 1 and the lower orthodontic appliance 2 can have a certain degree of deformation freedom. During the orthodontic treatment, the elastic connecting member 3 will be adjusted according to the patient's condition first, so that the relative positions of the upper orthodontic appliance 1 and the lower orthodontic appliance 2 approach the orthodontic position. When the patient wears the dental orthodontic appliance, due to the patient's malocclusion deformity, the relative positions of the upper orthodontic appliance 1 and the lower orthodontic appliance 2 will change to a certain extent and cause the elastic connecting member 3 to deform. The deformation method can be bending or compression. The elastic connecting member 3 generates a potential energy force due to the deformation to pull the upper and lower orthodontic appliances to their original preset positions, that is, the orthodontic position, and acts on the upper and lower teeth of the patient through this potential energy force to guide and pull the upper and lower teeth to the orthodontic position to be held and fixed.

[0066] The elastic force of the elastic connecting member 3 is proportional to its degree of deformation. Since the compression and bending of the elastic connecting member 3 are realized through the patient's occlusion, the elastic connecting member 3 in the force-compressed state or the bent state applies a resilience force to drive the upper orthodontic appliance and the lower orthodontic appliance to move away from each other in the vertical direction, which is opposite to the occlusion direction. When wearing the dental orthodontic appliance, the tighter the patient occludes, the greater the degree of deformation of the elastic connecting member 3, the greater the elastic force it generates, and the greater the traction and fixation effect on the upper and lower teeth, avoiding the problem that the patient's occlusion overcomes the traction force and improving the orthodontic effect.

[0067] The maxillary appliance 1 and the mandibular appliance 2 are elastically connected together by an elastic connector. When the patient's teeth are occluded, the elastic connector is stressed and generates elastic force, which is used to press the upper and lower appliances onto the patient's teeth respectively. The retention of the appliances can be achieved without setting up a separate fixed structure, thereby improving the correction effect for patients such as children who have insufficient space for adding accessories to their teeth.

[0068] In this embodiment, when the elastic connector 3 is in a natural state, there is a preset gap between the maxillary appliance 1 and the mandibular appliance 2. The preset gap can determine the degree of deformation of the elastic connector 3 when the patient wears the dental appliance, and further determine the elastic force on the patient's teeth when the patient wears the dental appliance. The preset gap can be adjusted by adjusting the elastic connector 3 before wearing according to treatment needs.

[0069] In one embodiment, the preset gap can be set to be larger than the distance between the maxillary appliance 1 and the mandibular appliance 2 when the patient is in the resting jaw position. When the patient wears it, the elastic connector 3 will be deformed and generate fixing and traction when not biting. The elastic connector 3 will open the upper and lower jaw appliances by a certain distance and ensure that the distance opened by the elastic connector 3 in the natural state is larger than the distance between the upper and lower teeth of the patient in the resting jaw position. This can ensure that when the patient wears the dental appliance, the upper and lower teeth will deform the elastic connector 3 in the natural state. The resulting rebound force will fix the upper and lower jaw appliances on the teeth, improving the fixing effect. When the patient bites further, as the distance between the upper and lower jaw appliances further decreases and becomes smaller than the preset gap, the deformation degree of the elastic connector 3 gradually increases and its rebound force gradually increases.

[0070] In another embodiment, the preset gap can also be set to be larger than the maximum opening distance of the patient's upper and lower teeth. The preset gap is further larger than the maximum opening distance of the patient's upper and lower teeth, so that when the patient is in all occlusal positions, the elastic connector 3 will deform and generate a rebound force to fix the upper and lower jaw appliances on the teeth, making the dental appliance more firmly fixed and not easy to fall off.

[0071] like Figure 1 As shown, the dental orthodontic appliance includes a plurality of elastic connectors 3, and the plurality of elastic connectors 3 are distributed at different positions. By providing a plurality of elastic connectors 3, the force between the upper and lower jaw appliances is made more balanced. In this embodiment, there is no special requirement for the specific setting position of the elastic connector 3, and it is only necessary to ensure that the support is uniform as a whole and can meet the support of the upper and lower jaw appliances. Preferably, the plurality of elastic connectors 3 can be arranged to be symmetrically arranged with respect to the sagittal direction. The elastic connectors are symmetrically distributed on both sides, and the force between the upper and lower jaw appliances is further balanced.

[0072] Meanwhile, in this embodiment, the elastic coefficients of the plurality of elastic connectors 3 can be set to be different, so as to facilitate setting the support strength of different positions of the patient's teeth according to treatment needs.

[0073] For example, if the back teeth need to be pressed down, the elastic force of the elastic connector 3 at the back teeth position can be set to be larger; if the front teeth need to be pressed down, the elastic force of the elastic connector 3 at the front teeth position can be set to be larger.

[0074] In this embodiment, the elastic coefficient of the elastic element 32 can be adjusted by changing its material, shape and structure, etc., and the elastic force of the elastic force can be dynamically adjusted according to the conditions and correction requirements of different patients to achieve better treatment effects. The adjustment method can be to change the height of the elastic element 32 in the initial non-bending or compressed state. This depends on the properties of the elastic element 32 itself, the source of elasticity, etc. In other embodiments, other means can also be used to change its elastic capacity according to the different elastic elements 32 selected.

[0075] In addition, through the above adjustment, the size of the preset gap of the elastic connector 3 can be changed. The preset gap of the elastic connector is set to different values ​​according to the conditions and correction requirements of different patients.

[0076] In one embodiment, the preset gap is set to be significantly larger than the distance between the maxillary appliance 1 and the mandibular appliance 2 when the patient's upper and lower jaws are at their maximum mouth opening, so that the elastic force of the elastic connector 3 remains substantially unchanged during the process from tight occlusion to maximum mouth opening. When the preset gap of the selected elastic connector is significantly larger than the distance between the maxillary appliance and the mandibular appliance when the patient's upper and lower jaws are at their maximum mouth opening, the elastic connector has already undergone a large degree of deformation when the patient wears the dental correction appliance. Therefore, when the patient bites further, the degree of deformation does not change much in general, so that the elastic force generated does not change much either. This method can achieve that in most cases, the correction force applied to the patient after wearing the device changes less and tends to be stable.

[0077] In another embodiment, the preset gap of the elastic connector is close to the distance between the maxillary appliance 1 and the mandibular appliance 2 when the patient's upper and lower jaws are at their maximum mouth opening, so that the elastic force of the elastic connector 3 gradually decreases in the process from tight occlusion to maximum mouth opening. When the preset gap of the selected elastic connector is close to the distance between the maxillary appliance and the mandibular appliance when the patient's upper and lower jaws are at their maximum mouth opening, the elastic connector can change gradually in a state with almost no deformation and obvious deformation when the patient wears the dental correction appliance. Therefore, when the patient bites further, the overall degree of deformation changes more significantly with the degree of bite, so that the elastic force generated also produces a corresponding gradient change with the degree of bite. This method can realize dynamic adjustment of the elastic force according to the degree of bite after the patient wears it.

[0078] As shown Figure 1 in the figure, the elastic connector 3 includes connection interfaces 31 for connecting with the maxillary appliance 1 and the mandibular appliance 2, and elastic elements 32 detachably connected to the two connection interfaces 31 respectively. Connection interfaces 31 are respectively arranged at corresponding positions of the maxillary appliance 1 and the mandibular appliance 2, and both ends of the elastic element 32 can be detachably installed on these connection interfaces 31. Specific detachable structures can adopt common detachable connection structures such as bolt connection and snap connection, and there are no special requirements. By setting the detachable connection interfaces 31 and the elastic elements 32, the elastic elements 32 can be conveniently replaced, and the selection and replacement of elastic elements 32 with different specifications can be realized to achieve the effect of adjusting the elastic force.

[0079] The elastic element 32 can be one of a polymer material, a metal material, a composite material, and a magnetic material. The elastic element 32 made of the corresponding material can be selected according to the material characteristics and the treatment needs of the patient. In this embodiment, the elastic element 32 can be set to generate elastic force through structural bending, and the bending direction of the elastic element 32 can be towards the buccal side, the lingual side, or the extending direction of the patient's teeth. As Figure 1 shown in the figure, the elastic element 32 of this embodiment is an elastic sheet made of a polymer material, a metal material, or a composite material. When not worn or not in occlusion, as Figure 2 shown in the figure, both ends of the elastic sheet are fixed to the two connection interfaces 31, and the whole is in a straight state. When worn or in occlusion, the maxillary and mandibular appliances approach and squeeze the elastic sheet, causing it to bend and protrude to one side under force. This deformation generates a restoring force that acts on the two connection interfaces 31 and finally acts on the maxillary and mandibular appliances to cause a tendency for them to separate from each other, achieving the retention of the appliances.

[0080] As Figures 1 to 3 shown in the figure, in this embodiment, the elastic connector 3 is respectively connected to the buccal surfaces of the maxillary appliance 1 and the mandibular appliance 2. At the same time, the bending and protruding direction of the elastic sheet also faces the buccal surface, so that its bending will not be blocked by the teeth.

[0081] In other embodiments, the elastic connector 3 can also be connected to the lingual surface or the occlusal surface of the maxillary appliance 1 and the mandibular appliance 2. Its specific installation position can set the elastic connector 3 at different positions in the oral cavity according to different situations of the patient, which is more convenient for orthodontic treatment.

[0082] The so-called buccal surface in this embodiment refers to the outer side of the teeth in the patient's oral cavity facing the cheek; the lingual surface refers to the inner side of the teeth facing the tongue; the occlusal surface refers to the top or bottom surface of the teeth facing the opposite teeth.

[0083] Preferably, the dental appliance may further be provided with a second elastic member 4, which is disposed at a position corresponding to the anterior teeth or posterior teeth of the patient on the maxillary appliance 1 or the mandibular appliance 2. When the maxillary appliance 1 and the mandibular appliance 2 are in an occlusal state, the second elastic member 4 is in a compressed or bent state under force and applies a force to drive the maxillary appliance 1 and the mandibular appliance 2 to move away from each other in the vertical direction. By providing the second elastic member 4, the resilience of the teeth can be increased separately at the anterior teeth or posterior teeth of the patient. Further, when the patient bites, the additional resilience generated by the second elastic member 4 can depress the anterior teeth or posterior teeth. Specifically, the position where the second elastic member 4 is disposed may be the same as the position where the elastic connecting member 3 is disposed, or may be different. For example, the second elastic member 4 may be disposed on the occlusal surface at a position corresponding to the anterior teeth or posterior teeth of the patient on the maxillary appliance 1 or the mandibular appliance 2. While the elastic connecting member 3 may be disposed on the side surface.

[0084] The elastic coefficient of the second elastic member 4 and the height in the natural state may also be different from those of the elastic connecting member 3. For example, the protruding height of the second elastic member 4 facing the maxillary appliance 1 or the mandibular appliance 2 in the natural state is lower than the preset gap of the elastic connecting member 3. So that the jaw position where it generates resilience is different from the jaw position where the elastic connecting member 3 generates resilience. The second elastic member can be disposed at a different position from the elastic connecting member, and the jaw position where it generates resilience can also be different from that of the elastic connecting member to meet more orthodontic requirements.

[0085] Embodiment 2

[0086] As Figure 4 、 5 shown, the structure of the dental appliance in this embodiment is substantially the same as that in Embodiment 1, except that the elastic element 32 thereof adopts a bent elastic sheet. The elastic sheet is curved, and both ends of the curve are connected to the connection interface 31, and the middle protruding part of the curve extends in the extending direction of the patient's teeth. When the dental appliance is worn or the patient bites, the upper and lower dental appliances approach, squeezing both ends of the bent elastic sheet to deform and generate elasticity. Making it produce a change from Figures 4 to 5 to

[0087] In this embodiment, the elastic connecting member 3 is also disposed on the buccal side. In other embodiments, the elastic connecting member 3 may also be connected to the lingual surface or the occlusal surface of the maxillary appliance 1 and the mandibular appliance 2. Its specific setting position can set the elastic connecting member 3 at different positions in the oral cavity according to different conditions of the patient, which is more convenient for orthodontic treatment.

[0088] Embodiment 3

[0089] As Figure 6 、 Figure 7As shown, the dental orthodontic appliance of this embodiment has a structure substantially the same as that of Embodiment 2. The difference is that at the position of the anterior teeth, there is an anterior tooth elastic connecting member 301, and at the position of the posterior teeth, there is only a posterior tooth elastic connecting member 302. In this embodiment, the elastic coefficient of the anterior tooth elastic connecting member 301 is less than that of the posterior tooth elastic connecting member 302. Specifically, in this embodiment, the elastic elements 32 of the anterior tooth elastic connecting member 301 and the posterior tooth elastic connecting member 302 are bent elastic sheets, and the thickness of the bent elastic sheet at the anterior tooth position is less than that of the bent elastic sheet at the posterior tooth position, so that its ability to resist bending and recover is weaker than that of the posterior teeth, that is, its elastic coefficient is lower than that of the posterior teeth. Through this setting, when the upper and lower jaw orthodontic appliances are occluded together, using the elastic force generated by the bent elastic sheet, on the one hand, the retention of the orthodontic appliance can be realized, and on the other hand, the elastic forces generated front and back are different, and the elastic force at the posterior tooth position is greater, so that the posterior teeth can be depressed.

[0090] In other embodiments, the elastic coefficients of the anterior and posterior teeth can also be made different by changing the properties of other elastic elements 32, such as selecting different materials, structures, etc., which will not be elaborated here.

[0091] In another embodiment, the elastic coefficient of the anterior tooth elastic connecting member 301 can also be set to be smaller than that of the posterior tooth elastic connecting member 302 to achieve the depression of the anterior teeth.

[0092] Embodiment 4

[0093] As Figure 8 、 Figure 9 shown, the dental orthodontic appliance of this embodiment has a structure substantially the same as that of Embodiment 2. The difference is that it is also provided with a second elastic member 4. In this embodiment, the second elastic member 4 is an elastic convex block. When the upper and lower jaws are occluded together, the elastic convex block can deform together with the elastic connecting member 3 and generate an elastic force, so that the local position of the teeth is subjected to a greater force and the depression effect is achieved. Among them, Figure 6 is a schematic diagram of the elastic connecting member 3 and the second elastic member 4 in a natural state without force. Figure 7 is a schematic diagram of the elastic connecting member 3 and the second elastic member 4 deforming under occlusion.

[0094] In this embodiment, the elastic convex block is arranged on the occlusal surface of the lower jaw orthodontic appliance 2 and protrudes towards the upper jaw orthodontic appliance 1. Its protrusion height is slightly lower than the preset gap between the upper and lower jaw orthodontic appliances when the elastic element 32 of the elastic connecting member 3 is in a natural state, so that only the elastic connecting member 3 will generate an elastic force when not occluded and slightly occluded.

[0095] In other embodiments, the specific structure of the second elastic member 4 can also be set to other elastic structures, such as the same structure as the elastic connecting member 3, or other structures different from the elastic connecting member 3, as long as it can play an additional supporting effect. The setting position of the second elastic member 4 can also be on the lingual surface or the buccal surface.

[0096] Example 5

[0097] like Figure 10 , Figure 11 As shown, the structure of the dental appliance of this embodiment is roughly the same as that of Embodiment 1, except for the specific structure and setting position of the elastic connector 3. In this embodiment, the elastic connector 3 is arranged on the jaw surface of the mandibular appliance 2. The upper and lower mandibular appliances are not provided with a connection interface 31, and the elastic element 32 is directly bonded to the upper and lower mandibular appliances. The elastic element 32 is block-shaped and can be made of a polymer material or a composite material. This structure of the present embodiment is more convenient to install, and it does not occupy additional space on the side of the oral cavity, and the supporting effect on the upper and lower mandibular appliances is also better.

[0098] Although the specific embodiments of the present invention are described above, it should be understood by those skilled in the art that this is only for illustration and the protection scope of the present invention is defined by the appended claims. Those skilled in the art may make various changes or modifications to these embodiments without departing from the principles and essence of the present invention, but these changes and modifications all fall within the protection scope of the present invention.

Claims

1. A dental orthodontic appliance, characterized in that, It includes an upper jaw orthodontic appliance, a lower jaw orthodontic appliance, and an elastic connecting member connecting the upper jaw orthodontic appliance and the lower jaw orthodontic appliance; When the upper jaw orthodontic appliance and the lower jaw orthodontic appliance are in an occlusal state, the elastic connecting member is in a force-compressed state or a bent state and applies a force to drive the upper jaw orthodontic appliance and the lower jaw orthodontic appliance to move away from each other.

2. The dental appliance according to claim 1, characterized in that, When the elastic connecting member is in a force-compressed state or a bent state, it applies a force to drive the upper jaw orthodontic appliance and the lower jaw orthodontic appliance to move away from each other in the vertical direction.

3. The dental appliance according to claim 2, characterized in that, When the elastic connecting member is in a natural state, a preset gap is formed between the upper jaw orthodontic appliance and the lower jaw orthodontic appliance; The preset gap is greater than the distance between the upper jaw orthodontic appliance and the lower jaw orthodontic appliance when the patient is in the rest jaw position.

4. The dental appliance according to claim 3, characterized in that, The preset gap is greater than the distance between the upper jaw orthodontic appliance and the lower jaw orthodontic appliance when the patient's upper and lower jaws are opened maximally.

5. The dental appliance according to claim 1, characterized in that, The dental orthodontic appliance includes a plurality of elastic connecting members, and the plurality of elastic connecting members are distributed at different positions.

6. The dental appliance according to claim 5, characterized in that, The plurality of elastic connecting members are symmetrically arranged relative to the sagittal plane, left and right.

7. The dental orthosis according to claim 5, characterized in that, The elastic coefficient of the plurality of elastic connecting members can be set to be different; or, The elastic coefficient of the plurality of elastic connecting members can be set to be the same.

8. The dental appliance according to claim 7, wherein The elastic connecting member includes an anterior tooth elastic connecting member arranged at the anterior tooth position and a posterior tooth elastic connecting member arranged at the posterior tooth position; The coefficient of the anterior tooth elastic connecting member is greater than the coefficient of the posterior tooth elastic connecting member; or, the coefficient of the anterior tooth elastic connecting member is less than the coefficient of the posterior tooth elastic connecting member.

9. The dental appliance according to claim 1, characterized in that, The elastic connecting member is respectively connected to the buccal surfaces of the upper jaw orthodontic appliance and the lower jaw orthodontic appliance; Or, The elastic connecting member is respectively connected to the lingual surfaces of the upper jaw orthodontic appliance and the lower jaw orthodontic appliance; Or, The elastic connecting member is respectively connected to the occlusal surfaces of the upper jaw orthodontic appliance and the lower jaw orthodontic appliance.

10. The dental orthotic appliance according to claim 4, wherein The preset gap of the elastic connecting member is significantly greater than the distance between the upper jaw orthodontic appliance and the lower jaw orthodontic appliance when the patient's upper and lower jaws are opened maximally, so that the elastic force of the elastic connecting member is basically unchanged during the process of the teeth moving from a tight occlusion to the maximum opening; Or, The preset gap of the elastic connecting member is close to the distance between the upper jaw orthodontic appliance and the lower jaw orthodontic appliance when the patient's upper and lower jaws are opened maximally, so that the elastic force of the elastic connecting member decreases gradually during the process of the teeth moving from a tight occlusion to the maximum opening.

11. The dental appliance according to claim 3, characterized in that, The dental orthodontic appliance further includes a second elastic member, and the second elastic member is arranged on the occlusal surface of the upper jaw orthodontic appliance or the lower jaw orthodontic appliance corresponding to the anterior teeth or posterior teeth position of the patient. When the upper jaw orthodontic appliance and the lower jaw orthodontic appliance are in an occlusal state, the second elastic member is in a force-compressed state or a bent state and applies a force to drive the upper jaw orthodontic appliance and the lower jaw orthodontic appliance to move away from each other in the vertical direction; Preferably, the protruding height of the second elastic member towards the upper jaw orthodontic appliance or the lower jaw orthodontic appliance in the natural state is lower than the preset gap.

12. The dental appliance according to claim 1, characterized in that, The elastic connecting member includes a connection interface for connecting with the upper jaw orthodontic appliance and the lower jaw orthodontic appliance, and an elastic element detachably connected to the two connection interfaces respectively.

13. The dental appliance according to claim 12, characterized in that, The material of the elastic element is one of polymer materials, metal materials, composite materials, and magnetic materials.

14. The dental appliance according to claim 12, characterized in that, The elastic element can generate elastic force through structural bending, and the bending direction of the elastic element faces the buccal side, lingual side, mesial side, or distal side.

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