Invisible tooth socket for correcting and correcting locking teeth and design method thereof

Abstract

The invention relates to the technical field of orthodontics, and discloses a design method of an invisible tooth socket for correcting locking teeth, which comprises the following steps: generating a digital dental model through dental scanning data; on the basis of a digital tooth jaw model, an orthodontic locking tooth invisible tooth socket with an unlocking state is designed, the orthodontic locking tooth invisible tooth socket comprises a tooth socket body, the tooth socket body is provided with a functional part corresponding to the position of the tooth in the locking state, and the functional part is used for driving one or more teeth in the locking state to move to the normal position; a first supporting part and a second supporting part of the invisible tooth socket for correcting and correcting the locking teeth are determined, the first supporting part is arranged on the tooth socket occlusal surface adjacent to the functional part, the second supporting part is arranged on the side, opposite to the first supporting part, of the tooth socket occlusal surface, the tooth socket occlusal surface corresponds to the occlusal surface of the teeth, and the second supporting part is arranged on the side, opposite to the first supporting part, of the tooth socket occlusal surface; the first supporting part and the second supporting part are used for supporting the occlusal surface of the upper jaw tooth socket body and the occlusal surface of the lower jaw tooth socket body for a certain distance.

Description

Technical Field

[0001] The present invention relates to the technical field of orthodontics, and in particular to an invisible brace for orthodontic locking of teeth and a design method thereof. Background Art

[0002] In orthodontic treatment, right occlusion is a common problem, also known as malocclusion or cusp crossing, which usually manifests as the cusps of some teeth not properly aligned with the sockets or cusps of the opposing teeth when the upper and lower teeth bite. This phenomenon not only affects the appearance, but also leads to problems such as chewing dysfunction, abnormal tooth wear and jaw joint diseases.

[0003] Although the existing invisible braces can effectively correct a variety of malocclusion problems, cover the entire teeth and occlusal surface, apply correction force to gradually move the teeth to the correct position, and have the advantages of comfort, convenience, and good concealment, when invisible braces are used to solve the problem of positive occlusion, they usually still rely on the traditional interactive traction method.

[0004] The interactive traction method specifically pulls the teeth to the ideal position by applying interactive forces between the upper and lower teeth. This method usually involves the use of elastic traction bands or other devices to continuously adjust the traction direction and force during the treatment process to achieve the effect of gradually moving the teeth. Specifically, the interactive traction bands are usually fixed at specific positions on the upper and lower jaws, and the forces are generated by elastic tension. These forces are applied in a specific direction to gradually pull the teeth from incorrect positions to the ideal position. During the treatment, the dentist will regularly adjust the tension and position of the traction according to the patient's tooth movement to ensure that the applied force can effectively promote the movement of the teeth. At the same time, the use of other auxiliary devices such as micro-implant anchorage nails can provide additional fixing points, thereby better controlling the direction and force of tooth movement and improving the accuracy and effect of treatment. The traditional interactive traction method has significant side effects: the locked teeth will be subjected to vertical component forces, resulting in tooth elongation, increasing the difficulty of releasing the lock and prolonging the treatment time. In addition, when auxiliary devices are used to solve this problem, although the negative effects of tooth elongation can be avoided to a certain extent, it is an invasive operation and will increase the cost of treatment. Summary of the invention

[0005] In view of this, the present invention provides an invisible brace for correcting orthodontic occlusion and a design method thereof, so as to solve the problems that traditional invisible braces can cause tooth elongation, have poor effect in releasing tooth occlusion, take a long time to treat, and have high treatment costs.

[0006] In a first aspect, the present invention provides a method for designing an invisible brace for correcting orthodontic occlusion, comprising:

[0007] Generate digital dental models through dental scanning data;

[0008] Based on the digital dental model, an invisible brace for correcting orthostatically locked teeth with the function of releasing the locked state is designed, wherein the invisible brace for correcting orthostatically locked teeth comprises a brace body, wherein the brace body has a functional part corresponding to the position of the teeth in the locked state, and the functional part is used to drive a single or multiple teeth in the locked state to move to a normal position;

[0009] Determine a first supporting portion and a second supporting portion of the orthodontic invisible braces, wherein the first supporting portion is arranged on an occlusal surface of the braces adjacent to the functional portion, and the second supporting portion is arranged on an occlusal surface of the braces on the side opposite to the first supporting portion, wherein the occlusal surface of the braces corresponds to the occlusal surface of the teeth, and the first supporting portion and the second supporting portion are used to support the occlusal surfaces of the maxillary brace body and the mandibular brace body by a certain distance.

[0010] Optionally, generating a digital dental model using dental scanning data includes:

[0011] Scan the teeth of the upper and lower jaws with a scanning device to obtain maxillofacial data;

[0012] Scan the incisal ends of the front teeth by scanning equipment to obtain the front teeth data;

[0013] Scan the distal side of the terminal molar using a scanning device to obtain the terminal molar data;

[0014] Scan the occlusal state of the teeth through a scanning device to obtain occlusal relationship data;

[0015] Scan the buccal and lingual sides of the teeth using a scanning device to obtain buccal and lingual data;

[0016] The digital dental model is generated based on the maxillofacial data, anterior teeth data, terminal molar data, occlusal relationship data, and buccal and lingual data.

[0017] Optionally, it is determined whether the digital dental model is complete and the occlusal relationship is error-free. If so, proceed to the next step; if not, rescan and regenerate the digital dental model.

[0018] Optionally, before designing the corrective orthostatic teeth invisible braces with a released locking state, the method further comprises:

[0019] The digital dental model is corrected, and the correction process at least includes removing redundant parts, smoothing surfaces and calibrating sizes.

[0020] Optionally, the first supporting portion is arranged on an occlusal surface of the braces adjacent to the functional portion, and comprises:

[0021] Determining the locking tooth position corresponding to the functional part;

[0022] Determining the first and / or second adjacent tooth position mesial or distal to the occluded tooth position;

[0023] The first supporting portion is arranged on the occlusal surface of the braces corresponding to the first and / or second adjacent teeth.

[0024] Optionally, the second supporting portion is arranged on the occlusal surface of the braces on a side opposite to the first supporting portion, and comprises:

[0025] determining a contralateral tooth position opposite to the first and / or second adjacent tooth position;

[0026] The second supporting portion is arranged on the occlusal surface of the braces corresponding to the contralateral tooth position.

[0027] Optionally, the first support portion and the second support portion are designed as jaw pads protruding from the occlusal surface of the braces, and the first support portion and the second support portion support the same reserved space between opposite sides of the occlusal surfaces of the maxillary braces body and the mandibular braces body.

[0028] Optionally, the gap range of the reserved space may be determined by the following method:

[0029] Based on the digital dental model, simulating the movement path of the locking tooth position of the maxillary braces body;

[0030] Moving the occlusal surface of the mandibular brace body relative to the locking tooth position to a preset distance from the lowest point of the moving path;

[0031] Determine the gap distance between the maxillary brace body and the mandibular brace body adjacent to the occlusal tooth position, which is the minimum value of the gap range; or,

[0032] Based on the digital dental model, simulating the movement path of the locking tooth position of the mandibular brace body;

[0033] Moving the occlusal surface of the maxillary brace body relative to the locking tooth position to a preset distance from the highest point of the moving path;

[0034] The gap distance between the maxillary brace body and the mandibular brace body adjacent to the occlusal tooth position is determined to be the minimum value of the gap range.

[0035] Optionally, the designed cross-sectional shapes of the first supporting portion and the second supporting portion are rectangular or circular.

[0036] In a second aspect, the present invention provides an invisible brace for correcting orthodontic occlusion of teeth, which is designed by the above-mentioned design method of invisible brace for correcting orthodontic occlusion of teeth, and includes a brace body, wherein the brace body includes a functional part, a first supporting part and a second supporting part, wherein the functional part is used to drive a single or multiple teeth in a locked state to move to a normal position, and the first supporting part and the second supporting part are used to support the occlusal surfaces of the maxillary brace body and the mandibular brace body by a certain distance.

[0037] Beneficial effects:

[0038] The present invention provides a design method for an invisible brace for correcting orthodontic occlusion of teeth, comprising:

[0039] Generate digital dental models through dental scanning data;

[0040] Based on the digital dental model, an invisible brace for correcting orthostatically locked teeth with the function of releasing the locked state is designed, wherein the invisible brace for correcting orthostatically locked teeth comprises a brace body, wherein the brace body has a functional part corresponding to the position of the teeth in the locked state, and the functional part is used to drive a single or multiple teeth in the locked state to move to a normal position;

[0041] Determine a first supporting portion and a second supporting portion of the orthodontic invisible braces, wherein the first supporting portion is arranged on an occlusal surface of the braces adjacent to the functional portion, and the second supporting portion is arranged on an occlusal surface of the braces on the side opposite to the first supporting portion, wherein the occlusal surface of the braces corresponds to the occlusal surface of the teeth, and the first supporting portion and the second supporting portion are used to support the occlusal surfaces of the maxillary brace body and the mandibular brace body by a certain distance.

[0042] The digital dental model generated by the dental scan data can intuitively display the patient's tooth shape and occlusion relationship for easy observation by dentists. The orthodontic invisible braces designed by the digital dental model can fit the outer surface of the teeth, and the functional part can provide the force required to drive the teeth to move or twist, so that the locked teeth can move to the correct position.

[0043] Since the upper and lower teeth are tightly occluded when the patient's teeth are in a normal occlusal state, the movement of the teeth driven by the functional part is obstructed and the movement rate is low, so a first supporting part and a second supporting part are provided. The first supporting part and the second supporting part can support the occlusal surfaces of the maxillary brace body and the mandibular brace body for a certain distance, so that there is a certain gap between the functional part and the occlusal surface of the other brace body, so that the tooth tips of the locked teeth have enough space to move, so that the functional part can drive the locked teeth to move to the correct position without hindrance. Compared with traditional invisible braces, such a setting does not require the application of interactive force between the upper and lower teeth, avoids the occurrence of tooth elongation, improves the effect of releasing the tooth lock, and at the same time increases the rate at which the functional part drives the locked teeth to move, thereby reducing the brace wearing period and the number of replacement and calibration times, thereby reducing costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0044] In order to more clearly illustrate the specific implementation methods of the present invention or the technical solutions in the prior art, the drawings required for use in the specific implementation methods or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some implementation methods of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0045] Figure 1 A flow chart of a method for designing invisible braces for correcting orthodontic occlusion according to an embodiment of the present invention;

[0046] Figure 2 A buccal schematic diagram showing the teeth in normal occlusion;

[0047] Figure 3 A schematic cross-sectional view of teeth in normal occlusion is shown;

[0048] Figure 4 A schematic diagram showing teeth in a positive occlusal state;

[0049] Figure 5 A schematic diagram showing teeth in a positive occlusal state;

[0050] Figure 6 A schematic cross-sectional view showing teeth in a positive occlusal state;

[0051] Figure 7 A schematic diagram of a digital dental jaw model showing teeth in a positive occlusal state is shown;

[0052] Figure 8 A structural schematic diagram showing a design method of a jaw pad;

[0053] Fig. 9 Shows Figure 8 A schematic diagram of the structure of the middle jaw pad from another angle;

[0054] Fig.10 A structural schematic diagram showing another design of the jaw pad;

[0055] Fig.11 Shows Fig.10 A schematic diagram of the structure of the middle jaw pad from another angle;

[0056] Fig.12 A schematic diagram of a digital dental jaw model showing teeth in normal occlusion. DETAILED DESCRIPTION

[0057] In order to make the purpose, technical solution and advantages of the embodiments of the present invention clearer, the technical solution in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative work are within the scope of protection of the present invention.

[0058] like Figure 1 As shown, the present invention provides a design method for correcting orthodontic teeth invisible braces, comprising:

[0059] Step S101, generating a digital dental model through dental scanning data.

[0060] Specifically, the dental and maxillary scanning data can be obtained through a scanning device. For example, the scanning device can be an intraoral scanner. The scanning device can be connected to the terminal device through wired communication or wireless communication. The terminal device can be a computer, a mobile phone, a tablet and other devices, which can process the scanned data, generate a digital dental and maxillary model and show the model to the dentist. The steps of scanning the teeth may include the following: scanning the maxillary and mandibular teeth through a scanning device to obtain maxillofacial data. Scanning the incisal ends of the anterior teeth through a scanning device to obtain anterior teeth data. Scanning the distal side of the terminal molars through a scanning device to obtain terminal molar data. Scanning the occlusal state of the teeth through a scanning device to obtain occlusal relationship data. Scanning the buccal and lingual sides of the teeth through a scanning device to obtain buccal and lingual data.

[0061] The digital dental model is generated based on the maxillofacial data, anterior teeth data, terminal molar data, occlusal relationship data, and buccal and lingual data. Specifically, the modeling software of the terminal device can generate a digital dental model based on the maxillofacial data, anterior teeth data, terminal molar data, occlusal relationship data, and buccal and lingual data, so that the dentist can analyze the locking position and correction method of the teeth.

[0062] In order to ensure that the digital dental model is exactly the same as the patient's tooth model, in this embodiment, the inspection step includes: determining whether the digital dental model is complete and the occlusal relationship is error-free, if so, proceeding to the next step, if not, rescanning and regenerating the digital dental model. Whether the digital dental model is complete and the occlusal relationship is error-free can be determined by image comparison or data comparison to ensure that the digital dental model is exactly the same as the patient's tooth model, thereby further improving the adaptability of the invisible braces for correcting orthodontic teeth.

[0063] After ensuring that the digital dental model is identical to the patient's tooth model, in order to further improve the accuracy, the design method further includes: performing correction processing on the digital dental model, and the correction processing at least includes removing redundant parts, smoothing surfaces and calibrating dimensions.

[0064] Step S102, based on the digital dental model, designing an invisible brace for correcting orthodontic teeth that can release the locked state, wherein the invisible brace for correcting orthodontic teeth comprises a brace body, wherein the brace body has a functional part corresponding to the position of the teeth in the locked state, and the functional part is used to drive a single tooth or multiple teeth in the locked state to move to a normal position.

[0065] Specifically, the brace body includes an upper brace body and a lower brace body, the inner grooves of the upper brace body and the lower brace body can be respectively covered on the upper and lower tooth surfaces, the outer surfaces are respectively facing the buccal side and the lingual side, and the functional part has an elastic force to drive the locked teeth to move to the correct position. The material of the brace body can be a polymer material with transparency, biocompatibility, mechanical strength and elasticity, such as thermoplastic polyurethane, polyethylene terephthalate-copolymer, polyamide 12, polyvinyl ester mixture, MCS material, etc., and can also be other polymer materials used for making braces and meeting the above characteristics, which are not listed here one by one.

[0066] Step S103, determining a first supporting portion and a second supporting portion of the orthodontic invisible braces, wherein the first supporting portion is arranged on an occlusal surface of the braces adjacent to the functional portion, and the second supporting portion is arranged on an occlusal surface of the braces on the side opposite to the first supporting portion, wherein the occlusal surface of the braces corresponds to the occlusal surface of the teeth, and the first supporting portion and the second supporting portion are used to support the occlusal surfaces of the maxillary braces body and the mandibular braces body by a certain distance.

[0067] Specifically, after ensuring that the functional part can drive the locked teeth to the correct position, the first support part and the second support part can be designed. The first support part and the second support part are defined according to the positional relationship with the locked teeth. The first support part is adjacent to the functional part. The functional part is the locked tooth position. The locked tooth position refers to the position on the maxillary brace body or the mandibular brace body corresponding to the locked teeth. The first support part is adjacent to the locked tooth position. Such a setting can avoid the existence of an occlusal relationship in the locked tooth position, so that the functional part can drive the locked teeth to the correct position without hindrance. The second support part is located on the opposite side of the first support part, which means that the second support position and the first support position are set on the same maxillary brace body or mandibular brace body, and the second support position is set on the other side of the molar position. Such a setting can make the gap distance between the molar positions on both sides of the maxillary brace body and the mandibular brace body the same, which reduces discomfort and improves aesthetics.

[0068] In this embodiment, the first supporting portion is arranged on the occlusal surface of the braces adjacent to the functional portion, and includes:

[0069] Determining the locking tooth position corresponding to the functional part means determining the position of the locking teeth.

[0070] Determine the first and / or second adjacent teeth in the mesial or distal position of the locked tooth, and set the first support portion on the occlusal surface of the braces corresponding to the first and / or second adjacent teeth. That is, determine the position of the teeth adjacent to the locked teeth, which can be the first and / or second adjacent teeth in the mesial or distal position. It is necessary to judge according to the position of the locked teeth and the occlusal relationship of the teeth adjacent to the locked teeth. If the first support portion is set at the first adjacent tooth in the mesial or distal position, it is not necessary to set the second first support portion. If the requirement cannot be met, it is necessary to set the first support portion at the second adjacent tooth in the mesial or distal position. Of course, the first support portion can also be set at the first and second adjacent teeth in the mesial or distal position. It can be satisfied that the maxillary braces body and the mandibular braces body are supported by a certain distance and the movement of the functional part is not hindered.

[0071] In this embodiment, the second supporting portion is arranged on the occlusal surface of the braces on the side opposite to the first supporting portion, and includes:

[0072] Determine the opposite tooth position relative to the first and / or second adjacent tooth position, and set the second support portion on the occlusal surface of the brace corresponding to the opposite tooth position. Combined with the description above, the opposite tooth position refers to the molar position on the other side of the same maxillary brace body or mandibular brace body as the first and / or second adjacent tooth position. In this way, the molar position support distances of the maxillary brace body and the mandibular brace body can be ensured to be the same.

[0073] In this embodiment, the first support portion and the second support portion are designed as jaw pads protruding from the occlusal surface of the braces, and the first support portion and the second support portion support the same reserved space between the opposite sides of the occlusal surface of the maxillary braces body and the mandibular braces body. Specifically, the jaw pad can be integrally formed with the maxillary braces body or the mandibular braces body, and designed according to the shape of the occlusal surface of the maxillary braces body and the mandibular braces body. The reserved space refers to the space between the molar parts of the maxillary braces body and the mandibular braces body. The size of the reserved space is related to the movement trajectory of the occlusal surface of the functional part, and it is sufficient to ensure that the occlusal surface of the maxillary braces body or the mandibular braces body relative to the functional part can avoid the movement trajectory of the functional part.

[0074] In this embodiment, the gap range of the reserved space can be determined by the following method:

[0075] Based on the digital dental model, simulating the movement path of the locking tooth position of the maxillary braces body;

[0076] Moving the occlusal surface of the mandibular brace body relative to the locking tooth position to a preset distance from the lowest point of the moving path;

[0077] Determine the gap distance between the maxillary brace body and the mandibular brace body adjacent to the occlusal tooth position, which is the minimum value of the gap range; or,

[0078] Based on the digital dental model, simulating the movement path of the locking tooth position of the mandibular brace body;

[0079] Moving the occlusal surface of the maxillary brace body relative to the locking tooth position to a preset distance from the highest point of the moving path;

[0080] The gap distance between the maxillary brace body and the mandibular brace body adjacent to the occlusal tooth position is determined to be the minimum value of the gap range.

[0081] Specifically, the preset distance can be determined according to the movement trajectory of the patient's locked teeth. The preset distance is greater than or equal to 0.5mm, which can enable most patients to move their locked teeth freely without hindrance. At this time, the gap between the maxillary brace body and the mandibular brace body is the minimum value of the gap range. The cross-sectional area and vertical length of the first support member and the second support member need to be set according to the relative occlusal surface shape of the setting position, and can satisfy the gap between the maxillary brace body and the mandibular brace body to be kept at the minimum value of the gap range. No specific limitation is made here. In addition, the gap between the occlusal surfaces of the maxillary brace body and the mandibular brace body should be less than 3mm, otherwise the support gap is too large, which will cause discomfort in the muscles or joints of the patient's cheek area. Therefore, it also depends on the health and adaptability of the temporomandibular joints of different patients.

[0082] In this embodiment, the designed cross-sectional shape of the first support portion and the second support portion is rectangular or circular. The end faces of the first support portion and the second support portion can be planes, or arcuate surfaces, conical surfaces, or irregular surfaces that match the shape of the occlusal surface, which can be determined according to actual conditions. Of course, the designed cross-sectional shape of the first support portion and the second support portion can also be other shapes, which can be flexibly selected according to actual needs.

[0083] In summary, the digital dental model generated by the dental scan data can intuitively display the patient's tooth shape and occlusion relationship for easy observation by dentists. The orthodontic invisible braces designed by the digital dental model can fit the outer surface of the teeth, and the functional part can provide the force required to drive the teeth to move or twist, so that the locked teeth can move to the correct position.

[0084] Since the upper and lower teeth are tightly occluded when the patient's teeth are in a normal occlusal state, the movement of the teeth driven by the functional part is obstructed and the movement rate is low, so a first supporting part and a second supporting part are provided. The first supporting part and the second supporting part can support the occlusal surfaces of the maxillary brace body and the mandibular brace body for a certain distance, so that there is a certain gap between the functional part and the occlusal surface of the other brace body, so that the tooth tips of the locked teeth have enough space to move, so that the functional part can drive the locked teeth to move to the correct position without hindrance. Compared with traditional invisible braces, such a setting does not require the application of interactive force between the upper and lower teeth, avoids the occurrence of tooth elongation, improves the effect of releasing the tooth lock, and at the same time increases the rate at which the functional part drives the locked teeth to move, thereby reducing the brace wearing period and the number of replacement and calibration times, thereby reducing costs.

[0085] In order to clearly illustrate the design method of the invisible braces for correcting orthodontic occlusion of teeth in this embodiment, the following will be combined with Figures 2 to 12 , and application scenarios are given as examples.

[0086] Before introducing the design method of this embodiment, the normal occlusion of the upper and lower jaws is first introduced. Figure 2 and Figure 3 As shown, Figure 2 Buccal view showing normal occlusion, Figure 3 A schematic diagram of a cross-section of teeth in normal occlusion is shown. It can be seen that in normal occlusion, the cusps of the upper and lower teeth should be opposite each other with extensive contact. The upper and lower teeth are staggered to ensure their stability. The maxillary teeth completely cover the mandibular teeth. The buccal side of the maxillary teeth should be closer to the outside than the mandibular teeth. The occlusion of the teeth should be balanced front, back, left and right to achieve a normal and coordinated occlusion relationship.

[0087] Tooth occlusion is divided into positive occlusion and negative occlusion. Positive occlusion means that when the upper and lower teeth are in occlusion, the lingual bevel of the lingual tip of the maxillary posterior teeth is located on the buccal side of the buccal bevel of the buccal tip of the mandibular posterior teeth, there is no occlusal contact between the occlusal surfaces, and some or all of the teeth cannot normally contact in the vertical direction, that is, the inner side of the maxillary teeth bites on the outer side of the mandibular teeth; negative occlusion means that when the upper and lower teeth are in occlusion, the buccal side of the lingual tip of the maxillary posterior teeth is located on the lingual side of the lingual bevel of the buccal tip of the mandibular posterior teeth, there is no occlusal contact between the occlusal surfaces, and some or all of the teeth cannot normally contact in the vertical direction, that is, the outer side of the maxillary teeth bites on the inner side of the mandibular teeth. Taking positive occlusion as an example, refer to Figure 4 , Figure 5 , Figure 6 , Figure 4 A schematic diagram showing the teeth in a positive occlusal state, Figure 5 A schematic diagram showing the teeth in a positive occlusal state, Figure 6 A cross-sectional schematic diagram showing the teeth in a positive occlusal state.

[0088] The above content clearly illustrates the difference between teeth in a normal occlusal state and a locked state. The design method of this embodiment is described below.

[0089] like Figure 7 As shown, Figure 7 The structure diagram of the digital dental model is shown. The digital dental model can be obtained by the following steps:

[0090] Scan the patient's maxillary and mandibular teeth, the incisors of the anterior teeth, and the distal and occlusal states of the teeth to obtain the scan data, generate a digital dental model through the terminal device, and observe it. Preparations can also be made before scanning, such as: ensuring that the scanning equipment (such as an intraoral scanner) is in good working condition. Prepare accessories required for scanning, such as scanning heads, disinfectants, etc. Prepare the patient's oral cavity, including cleaning the mouth, removing food residues and restorative materials in the mouth. Instruct the patient to take a suitable sitting posture and ensure that the head is stable. Adjust the chair position and lighting for easy operation and obtaining clear scanned images. When scanning the dental maxillofacial area, scans can be performed along the buccal and lingual sides of the teeth. In addition, unclear or incomplete areas can be scanned repeatedly.

[0091] After that, the invisible braces for correcting the orthostatic teeth can be designed according to the tooth occlusion relationship. First, the movement trajectory of the locked teeth needs to be simulated and the corresponding functional parts should be designed. The functional parts can not only drive the locked teeth to move to the correct position, but also apply pressure to the teeth in the direction of the gums to prevent the teeth from elongating. In some cases, functional parts can be set on both the maxillary brace body and the mandibular brace body, which are defined as the first functional part and the second functional part respectively. The first functional part is used to drive the maxillary locked teeth to move toward the lingual side, and the second functional part can drive the mandibular locked teeth to move toward the buccal side, further improving the efficiency of unlocking.

[0092] When determining the movement trajectory of the locked teeth, the gap between the occlusal surfaces of the maxillary braces body and the mandibular braces body can be designed. While ensuring that the movement of the first functional part and the second functional part is not hindered, the jaw pad and the jaw pad are designed to ensure that the gap distance between the maxillary braces body and the mandibular braces body is greater than 0.5mm.

[0093] Thus, we get Figure 8 and Fig. 9 In the dental brace body shown, the two jaw pads are arranged at the mesial position of the locked teeth. Of course, other arrangements are also possible, such as Fig.10 and Fig.11 As shown, the jaw pad can be set in the distal position of the occluded tooth position.

[0094] The braces body with jaw pad can efficiently drive the teeth to move to the normal position, so as to obtain Fig.12 Digital dental model of normal occlusion shown.

[0095] In this embodiment, the design hardness of the occlusal surface of the brace body can be increased so that the patient can chew food while wearing the brace body, thereby further improving the correction efficiency through the pressure of the occlusal action.

[0096] The above design can shorten the wearing period and replacement times of braces, thereby reducing costs.

[0097] The design method for teeth in the reverse occlusal state can be designed by referring to the above method, and no further examples will be given here.

[0098] This embodiment also provides an invisible brace for correcting orthodontic occlusion of teeth, which is designed by the design method of the invisible brace for correcting orthodontic occlusion of teeth described above, and includes a brace body, the brace body including a functional part, a first supporting part and a second supporting part, the functional part is used to drive a single or multiple teeth in a locked state to move to a normal position, and the first supporting part and the second supporting part are used to support the occlusal surfaces of the maxillary brace body and the mandibular brace body by a certain distance. The design structure and effect of the brace body in this embodiment have been described in detail when explaining the design method above, and will not be repeated here.

[0099] Although the embodiments of the present invention have been described in conjunction with the accompanying drawings, those skilled in the art may make various modifications and variations without departing from the spirit and scope of the present invention, and such modifications and variations are all within the scope defined by the appended claims.

Claims

1. A method for designing invisible braces for correcting orthodontic occlusion, characterized in that: include: Generate digital dental models through dental scanning data; Based on the digital dental model, an invisible brace for correcting orthostatically locked teeth with the function of releasing the locked state is designed, wherein the invisible brace for correcting orthostatically locked teeth comprises a brace body, wherein the brace body has a functional part corresponding to the position of the teeth in the locked state, and the functional part is used to drive a single or multiple teeth in the locked state to move to a normal position; Determine a first supporting portion and a second supporting portion of the orthodontic invisible braces, wherein the first supporting portion is arranged on an occlusal surface of the braces adjacent to the functional portion, and the second supporting portion is arranged on an occlusal surface of the braces on the side opposite to the first supporting portion, wherein the occlusal surface of the braces corresponds to the occlusal surface of the teeth, and the first supporting portion and the second supporting portion are used to support the occlusal surfaces of the maxillary brace body and the mandibular brace body by a certain distance.

2. The design method according to claim 1, characterized in that: The method of generating a digital dental model by using dental scanning data comprises: Scan the teeth of the upper and lower jaws with a scanning device to obtain maxillofacial data; Scan the incisal ends of the front teeth by scanning equipment to obtain the front teeth data; Scan the distal side of the terminal molar using a scanning device to obtain the terminal molar data; Scan the occlusal state of the teeth through a scanning device to obtain occlusal relationship data; Scan the buccal and lingual sides of the teeth using a scanning device to obtain buccal and lingual data; The digital dental model is generated based on the maxillofacial data, anterior teeth data, terminal molar data, occlusal relationship data, and buccal and lingual data.

3. The design method according to claim 2, characterized in that: Determine whether the digital dental model is complete and the occlusal relationship is error-free. If so, proceed to the next step. If not, rescan and regenerate the digital dental model.

4. The design method according to claim 1, characterized in that: Before the design of the orthodontic invisible braces for correcting orthodontic teeth in the unlocked state, it also includes: The digital dental model is corrected, and the correction process at least includes removing redundant parts, smoothing surfaces and calibrating sizes.

5. The design method according to claim 1, characterized in that: The first supporting portion is arranged on the occlusal surface of the dental brace adjacent to the functional portion, and comprises: Determining the locking tooth position corresponding to the functional part; Determining the first and / or second adjacent tooth position mesial or distal to the occluded tooth position; The first supporting portion is arranged on the occlusal surface of the braces corresponding to the first and / or second adjacent teeth.

6. The design method according to claim 5, characterized in that: The second supporting portion is arranged on the occlusal surface of the dental brace on the side opposite to the first supporting portion, and comprises: determining a contralateral tooth position opposite to the first and / or second adjacent tooth position; The second supporting portion is arranged on the occlusal surface of the braces corresponding to the contralateral tooth position.

7. The design method according to claim 6, characterized in that: The first supporting portion and the second supporting portion are designed as jaw pads protruding from the occlusal surface of the braces, and the first supporting portion and the second supporting portion support the same reserved space between the opposite sides of the occlusal surfaces of the maxillary braces body and the mandibular braces body.

8. The design method according to claim 7, characterized in that: The clearance range of the reserved space can be determined by the following method: Based on the digital dental model, simulating the movement path of the locking tooth position of the maxillary braces body; Moving the occlusal surface of the mandibular brace body relative to the locking tooth position to a preset distance from the lowest point of the moving path; Determine the gap distance between the maxillary brace body and the mandibular brace body adjacent to the occlusal tooth position, which is the minimum value of the gap range; or, Based on the digital jaw model, simulate the movement path of the locking tooth position of the mandibular brace body; Moving the occlusal surface of the maxillary brace body relative to the locking tooth position to a preset distance from the highest point of the moving path; The gap distance between the maxillary brace body and the mandibular brace body adjacent to the occlusal tooth position is determined to be the minimum value of the gap range.

9. The design method according to claim 7, characterized in that: The designed cross-sectional shapes of the first supporting portion and the second supporting portion are rectangular or circular.

10. An invisible brace for correcting orthodontic occlusion, characterized in that: The design is carried out by the design method of invisible braces for correcting orthodontic occlusion of teeth as described in any one of claims 1 to 9, comprising a braces body, wherein the braces body comprises a functional portion, a first supporting portion and a second supporting portion, wherein the functional portion is used to drive a single or multiple teeth in a locked state to move to a normal position, and the first supporting portion and the second supporting portion are used to support the occlusal surfaces of the maxillary braces body and the mandibular braces body by a certain distance.

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