33 results about "Posterior teeth" patented technology

The invention discloses a complete denture generation method, device and equipment and a storage medium. The complete denture generation method comprises the following steps: acquiring a plurality of tooth feature points; determining a target false tooth model closest to the current patient in a false tooth model library; and determining an upper and lower jaw anterior tooth occlusion relationship of the target false tooth model. Determining the occlusal relationship between upper and lower jaw posterior teeth of the target false tooth model; determining an upper jaw tooth arrangement termination line and a lower jaw tooth arrangement termination line of the target false tooth model; and based on the adjustment information, finely adjusting the occlusion relationship between the upper and lower jaw anterior teeth, the occlusion relationship between the upper and lower jaw posterior teeth, the upper jaw tooth arrangement termination line and the lower jaw tooth arrangement termination line, and determining the final complete denture. Therefore, a target denture model closest to the anterior tooth arrangement information of the current patient is determined in a denture model library, and the target denture model is further adjusted based on the anterior tooth occlusion relation between the upper jaw and the lower jaw, the posterior tooth occlusion relation, the upper jaw tooth arrangement termination line and the lower jaw tooth arrangement termination line of the current target denture model, so that a final complete denture is obtained.

The present invention is oral device that inhibits mastication and ingestion of solid food while minimizing intrusiveness and discomfort in other oral activities. This device is ideal for individuals following an all-liquid diet without relying on willpower alone. The oral device allows a full range of motion of the jaw and the wearer keeps the ability to open and close the mouth, allowing all oral functions other than chewing and swallowing solid food. In various embodiments of the invention, the oral device comprises a set of retainers worn over teeth or retainer bars bonded to, or integrated as part of the retainers. A set of flexible mastication barriers coupled to the retainers or retainer bars and extending from mandible to the maxilla on the lingual side of the mouth inhibit the movement of solid food to the occlusal surfaces of the posterior teeth for chewing. An artificial intelligence platform is implemented to improve fabrication of the oral device and predict and eliminate undercuts in the retainers or retainer bars.

The invention relates to the technical field of oral cavity tools, in particular to a complete denture template rapid tooth arrangement system which comprises a left posterior tooth template, a right posterior tooth template, a left side canine tooth template, a right side canine tooth template, a left side incisor tooth template, a right side incisor tooth template and a middle incisor tooth template jaw surface plate. The left posterior tooth template comprises four posterior teeth on each of the upper and lower jaws of the left side of a preset matched finished artificial tooth, and the right posterior tooth template is the same as the left posterior tooth template; the left canine tooth template comprises tooth tips which are preset and matched with canine teeth on the upper and lower jaws of a finished artificial tooth, and the right canine tooth template is the same as the left canine tooth template; according to the scheme, when the complete dentures need to be arranged, the arrangement of the dentures can be completed by sequentially placing the artificial teeth of the product in the template grooves through the preset template system, so that the tooth arrangement speed is accelerated, the tooth arrangement difficulty is simplified, the culture time of a tooth arrangement technician is shortened, and the quality and the standard in the technical field of tooth arrangement of the complete dentures are improved.

The utility model relates to the technical field of biteplates, and discloses a magnetic biteplate which comprises a main body mechanism and an auxiliary mechanism, the auxiliary mechanism is located at the outer end of the main body mechanism, and the main body mechanism comprises a first upper jaw membrane pressing frame, a second lower jaw membrane pressing frame and a magnetic repulsion assembly. The second mandibular membrane pressing frame is movably installed below the first maxillary membrane pressing frame, the magnetic repulsion assembly is movably installed at the lower end of the first maxillary membrane pressing frame, and the magnetic repulsion assembly is movably installed at the upper end of the second mandibular membrane pressing frame. According to the magnetic biteplate, a main body mechanism is installed, the core part of the magnetic biteplate is composed of neodymium magnets with strong magnetic force, the magnets are placed on a rear tooth occlusal surface part of a film pressing frame according to requirements, and when the magnetic biteplates of the upper and lower jaws are close to each other, due to mutual repulsion of the same polarities of the magnetic force parts, stable opening force is generated; the force enables the upper jaw and the lower jaw to be separated, so that muscle fibers of lifting jaw muscle groups are lengthened and relaxed, and the practicability of the biteplate is improved.

The invention discloses a posterior tooth arrangement method and device based on measurement of an alveolar ridge intercrest line angle and a medium. The method comprises the following steps: acquiring an occlusion record of a patient; according to the occlusion record of the patient, establishing an upper and lower jaw edentulous jaw three-dimensional model of the patient; determining an occlusal plane of the three-dimensional model, and performing preliminary tooth arrangement on the three-dimensional model according to the occlusal plane; carrying out alveolar ridge intercrest line angle measurement on the three-dimensional model after preliminary tooth arrangement; and modifying the three-dimensional model after preliminary tooth arrangement based on an alveolar ridge intercrest line angle measurement result to obtain a posterior tooth arrangement scheme. According to the method, the included angle between the connecting line of the upper and lower jaw alveolar ridges and the occlusal plane is used as a basis for judging the arrangement mode of the back teeth, three-dimensional reconstruction is carried out on the oral cavity of the patient, digital measurement of the alveolar ridge intercrest line angle of the patient is completed in a computer, and the generated arrangement scheme of the back teeth can recover the relation between the upper and lower jaws of the patient more reasonably; the retention, the stability and the chewing performance of false tooth wearing are improved.

The utility model belongs to the technical field of rubber barrier clips, and particularly relates to a rear tooth rubber barrier clip stabilizing device. Comprising an elastic metal ring, the elastic metal ring is an open ring, rubber barrier clamping assemblies are fixedly arranged at the two ends of the elastic metal ring, and two stabilizing assemblies are arranged on the inner side of the elastic metal ring. According to the utility model, the stabilizing assembly is arranged to provide upward supporting force for the rubber barrier clamping assembly clamped on the rear teeth, so that the rubber barrier clamping assembly tends to be horizontal, and the rubber barrier clamping assembly in the horizontal state can prevent the rubber barrier clamping assembly from being inclined due to stress and colliding with the gingiva of a treated child; the problem that the tooth treatment progress is affected due to the fact that children feel painful due to the fact that the children do physical reactions when eating the teeth, and the physical reactions of the children not only affect doctors to observe the teeth needing to be treated of the children, but also enable the doctors not to treat the teeth through medical instruments is solved.

The utility model discloses an orthodontic appliance which comprises a connecting part, an anterior tooth part and a posterior tooth part, the posterior tooth part comprises a left side tooth socket and a right side tooth socket, and the left side tooth socket and the right side tooth socket are connected through the connecting part; the connecting part comprises two adjusting blocks, two arch expanding rods are fixedly welded to one sides of the two adjusting blocks, threaded rods are welded to the other sides of the two adjusting blocks, and one ends of the two threaded rods are in threaded connection with adjusting pieces; the front tooth part comprises an arc-shaped piece, the other end of the arc-shaped piece is connected with the right side tooth socket through an adjusting mechanism, a plurality of connecting pieces are arranged on the arc-shaped piece, the dental arch is expanded in the horizontal direction, the normal dental arch form can be recovered, crowding can be relieved, and teeth can be aligned; adjustment can be carried out according to the front tooth correction conditions of different patients, and connecting pieces can be added according to the conditions of the patients, so that the correction effect is improved.

The present invention provides a diagnostic veneer for posterior teeth in occlusal reconstruction and a digital preparation method thereof, the method comprising: obtaining full dentition scan data; designing a posterior tooth wax model based on the occlusal height after wearing a caltrop pad to obtain posterior tooth occlusal surface data OCCLU1; discontinuously segmenting the posterior tooth occlusal surface data OCCLU1, discontinuously deleting part of the posterior tooth occlusal data, and obtaining posterior tooth occlusal data OCCLU2; performing 3D printing based on a full tooth wax model and a discontinuous tooth wax model respectively; making a forming negative mold INDEX1 and a forming negative mold INDEX2 based on the 3D printed model; performing injection molding on part of the posterior teeth to be repaired using the forming negative mold INDEX2; and performing injection molding on the remaining posterior teeth to be repaired using the forming negative mold INDEX1. This scheme realizes the rapid and high-precision molding of the diagnostic veneer for posterior teeth, and the manufactured diagnostic veneer has good stability and durability.

An orthodontic device for pulling upper incisor teeth to achieve facial balance, comprising a first device (1) comprising an upper plate (5) located behind six upper incisor teeth and firmly fixed with an orthodontic adhesive, a first hook (3) and a second hook (4) being connected to the upper plate (5) of the first device, and a second device (2) comprising a right plate (6) and a left plate (7) covering all upper posterior teeth, a first wire (8) is connected to the right plate (6) and the left plate (7), and a second wire (9), which is a stainless steel spring hard wire at the premolar, is made into a left U-ring (12) and a right U-ring (13), while both ends of the wire are connected to the right plate (6) and the left plate (7).

The invention relates to the technical field of shell-shaped dental appliance manufacturing, and discloses a shell-shaped dental appliance which comprises a shell-shaped body provided with a plurality of tooth storage cavities, and jaw pads protruding towards the opposite jaw direction are arranged on the occlusal surfaces of the tooth storage cavities of at least part of the rear tooth area. The outer contour surface of the side, facing the opposite jaw, of the jaw pad is in concave-convex matching with the occlusal surface of the opposite jaw teeth corresponding to the jaw pad when the upper jaw and the lower jaw are in an occlusal state, a chewing auxiliary area is arranged on the side, facing the opposite jaw, of the jaw pad, and the chewing auxiliary area comprises one or more cambered surfaces protruding towards the opposite jaw. The invention further discloses a shell-shaped dental instrument system and a shell-shaped dental instrument set. According to the technical scheme, stable occlusion can be achieved through concave-convex matching of the occlusal surfaces, and the function of chewing food after wearing can be assisted through the cambered surfaces protruding towards the jaw.

This application relates to the field of orthodontic appliances and discloses a multifunctional orthodontic traction device, including a self-ligating bracket for fixing and limiting the archwire. The top of the self-ligating bracket is equipped with an elastic closing hook, and a traction structure for orthodontic traction is hooked to the inner side of the elastic closing hook. A combined bracket for adhesive fixation to the posterior teeth is fixedly connected to one side of the traction structure. By using the self-ligating bracket and the combined bracket in conjunction with other brackets and archwires, the device achieves tooth positioning correction. The traction structure, installed between the self-ligating bracket and the combined bracket, generates horizontal tension, thereby performing Class II orthodontic traction on the teeth, achieving horizontal traction. Simultaneously, while the traction structure generates horizontal tension, a downward pressure structure converts part of the force into downward pressure on the molars, thus achieving molar indentation control. This device increases its usability through the integration of multiple functions and improves the efficiency of orthodontic treatment.

The invention relates to the technical field of medical instruments, and particularly discloses oral correction snore-ceasing equipment and a design method thereof. The oral cavity correction snore-ceasing equipment comprises a correction equipment body, an anterior tooth area and a posterior tooth area are formed in the correction equipment body, the posterior tooth area is provided with an occlusal tooth groove, the occlusal tooth groove is used for guiding a lower jaw and keeping the lower jaw at a forward stretching position, the anterior tooth area is provided with an occlusal pad, and the occlusal pad is connected with the inner side face of the occlusal tooth groove. And the occlusal pad obliquely extends from top to bottom in the direction deviating from the occlusal tooth groove. Auxiliary vent holes are formed in the anterior tooth area, penetrate through the outer wall surface and the inner wall surface of the appliance body and form a preset area, and the preset area is 10mm < 2 >-200mm < 2 >. By the adoption of the snore-ceasing device, the phenomena of snore and apnea caused by airway collapse can be relieved, meanwhile, blood oxygen saturation reduction caused by insufficient airflow is relieved or prevented, and the adaptability of the snore-ceasing device to a patient with the nasal cavity blockage problem is improved.

The utility model discloses a tongue block mouth gag for a tongue frenum trimming operation. Comprising a rear tooth supporting body, a tongue blocking body, an upper and front tooth supporting body and a handle, an upper tooth groove for positioning upper teeth is formed in the top face of the rear tooth supporting body, a lower tooth groove for positioning lower teeth is formed in the bottom face of the supporting body, the upper teeth and the lower teeth of a rear tooth area are meshed in the upper tooth groove and the lower tooth groove, the tongue blocking body is connected with the rear tooth supporting body, and the handle is connected with the tongue blocking body. The tongue blocking body is used for blocking and protecting the tongue so that the tongue can be kept in an upward and backward turning state, the tongue blocking body is provided with an operation channel communicated with the edge of the lower end of the tongue blocking body, the operation channel is used for allowing an operation instrument to pass through to make contact with a tongue frenum, and the upper anterior tooth supporting body is connected to the posterior tooth supporting body. The upper anterior tooth supporting body is used for supporting upper anterior teeth, and the handle is connected to the upper anterior tooth supporting body. The tongue block mouth gag for the tongue frenum trimming operation can prevent a patient from closing a mouth, and meanwhile, the operation is facilitated.

Dental appliance systems with appliances having eruption tabs. The dental appliance systems may include at least a first shell and a second shell each shaped to receive teeth of respective first and second jaws of a patient. The first and second shells may include respective first and second eruption tabs that extend from respective first and second posterior tooth-receiving cavities of the shells. At least one of the first and second tabs may be configured to exert a force to manage eruption of the erupting posterior tooth. The first and second tabs may include contoured exterior shapes that provide mating engagement with each other so as to support the force exerted on the erupting posterior tooth.

1. The name of the design product: the posterior teeth double-inclined plane guide plate corrector. 2. The use of the design product: for oral orthodontics. 3. The design points of the design product: in shape. 4. The picture or photo that best shows the design points: combination use state reference figure 2. 5. The design product is made of transparent material.

An orthodontic appliance includes an upper aligner and a lower aligner, and upper and lower bulges of the aligners, the bulges being dimensioned and positioned to maintain a wedge-shaped space between occlusal surfaces of the upper posterior teeth and lower posterior teeth when the aligners are fully installed and contact each other. When the orthodontic appliance is fully installed and the upper and lower biting walls contact each other adjacent to a right last molar of the teeth and adjacent to a left last molar of the teeth, a first distal end of the upper right bulge and a second distal end of the lower right bulge are dimensioned to contact each other, and a third distal end of the upper left bulge and a fourth distal end the lower left bulge are dimensioned to contact each other.

The utility model discloses a removable movable appliance for relieving positive locking caused by lingual inclination of rear teeth on two sides, which relates to the technical field of orthodontics and comprises an occlusal plate and a lingual wire for connecting the occlusal plate, according to the removable movable appliance for relieving positive locking caused by lingual inclination of double-side posterior teeth, a non-anatomical biteplate is manufactured from double-side premolars to a molars area, and a cheek side traction hook and a lingual side traction hook are connected to the far-middle cheek-lingual side of the biteplate, so that on one hand, occlusion can be opened, and the situation that the correction effect is affected by occlusion locking of upper and lower teeth is avoided; on the other hand, the lingual posterior teeth can be erected through the cheek side traction hook and the lingual side traction hook, a series of problems caused by extension of the posterior teeth can be prevented, the movable orthodontic appliance avoids a tedious orthodontic mode, is movable and removable, is beneficial to oral hygiene cleaning, meanwhile avoids adverse effects of a traditional orthodontic appliance on the teeth, and is suitable for popularization and application. The correction comfort is improved, so that the device is more convenient and practical in use.

The invention discloses a mouth gag and fixed intubation integrated device for oral intubation patients with general anesthesia, acute and critical diseases and the like, and relates to the technical field of medical instruments, the mouth gag and fixed intubation integrated device comprises an opening part, an intubation fixing part and a connecting part, the mouth gag and teeth do not shift in the coronal plane direction through a limiting flange, and unstable supporting caused by movement of the patient and operation of nurses is avoided; through linkage joints on the left side and the right side of the oral cavity, the wedge-shaped rear tooth cushion with the thickness of one end larger than that of the other end and rear teeth with occlusal surfaces open the oral cavity of a patient, damage to anterior teeth is avoided, a trachea cannula is placed in a fixing ring extending out of a connecting part, and after buckling is conducted through a buckling ring, a pressurizing handle is used for pressurizing and fixing; the trachea cannula is tightly pressed by the silica gel pad, so that the problems that the trachea cannula is disengaged and displaced and is bitten by a patient are solved.

The invention discloses an orthodontic appliance capable of rapidly closing interdentition dispersed gaps. The orthodontic appliance comprises a retention structure, a stress dispersion connecting structure and an elastic lingual arch, the retention structure is used for retaining rear teeth on the two sides of the dentition; the stress dispersion connecting structure is located on the lip side and used for generating thrust towards the tongue side on the anterior teeth, and the two ends of the stress dispersion connecting structure are connected with the retention structures on the two sides respectively; the elastic lingual arch is located on the lingual side and used for generating contraction force to achieve the arch contraction effect, and the two ends of the elastic lingual arch are connected with the fixing structures on the two sides respectively. The invention also discloses an integrated manufacturing method of the orthodontic appliance capable of rapidly closing the interstitial space between dentitions. The combined structure of the stress dispersion structure and the elastic lingual arch is adopted, when the combined structure is applied to the lower jaw, lingual inclination can be rapidly conducted on anterior teeth of the lower jaw, meanwhile, dispersion gaps are rapidly closed, and when the combined structure is applied to the upper jaw, upper anterior teeth can be rapidly retracted, and the dispersion gaps are rapidly closed.

The invention discloses a multifunctional orthodontic appliance for orthodontics, which belongs to the technical field of orthodontics and comprises an arch wire, a fixing component and a plurality of limiting components. The fixing assembly is correspondingly installed at the position of oral cavity rear alveolar teeth and used for fixing the two ends of the arch wire. And the plurality of limiting components are correspondingly mounted in other tooth positions except posterior alveolar teeth in the oral cavity. According to the orthodontic device, a cooperative mode that the rear alveolar teeth are fixed and matched with other teeth for limiting is adopted, the two ends of the arch wire are stably anchored by installing the fixing assembly on the rear alveolar teeth, meanwhile, the arch wire is tensioned and limited in a sectional mode by installing the limiting assembly on the other teeth, and a stable structure with the two ends fixed and matched and the middle section adjusted and controlled in a sectional mode is formed; the arch wire has the core advantages that the arch wire is of an integral structure, compared with a sectional arch wire in the prior art, the problem of stress dispersion caused by sectional connection nodes is thoroughly solved, the safety and reliability in the orthodontic treatment process are remarkably improved, and the long-term treatment requirements of various dentognathic deformity correction are met.

A dental guard and tray, includes a thermoplastic dental guard, and a generally rigid tray fittingly receiving the dental guard during heating and fitting of the dental guard to teeth of the user. The dental guard includes a pair of bite pads positionable below rear teeth of the user and a connection band that connects between the bite pads and is positionable behind upper or lower front teeth of the user. The rigid tray includes a pair of bite pad supports and a connecting arc, the bite pad supports each providing a planar depression or well for receiving one of the bite pads, the connecting arc spanning between the bite pads and having fingers located proximate a midpoint of the arc and configured to angle rearwardly and upwardly from the connecting arc so as to underlie and receive the band when the dental guard is received onto the tray.

In artificial teeth belonging to posterior teeth parts, buccal convexity on an upper jaw side is suitable in occlusion; in a centric occlusal position, lingual cusps on the upper jaw side are fit in central fossae on a lower jaw side; W2 / W1 is 0.9 to 1.22 where W1 is a width of a lingual cusp of a first molar tooth on the upper jaw side, and W2 is a width of a pit of a first molar tooth on the lower jaw side one of the artificial teeth in a buccolingual direction; and Sk / Sj is 0.85 to 0.95 where, when the first molar tooth on the lower jaw side is viewed from an occlusal surface, Sj is an area surrounded by ridges of buccal and lingual edges that pass buccal and lingual cusp tips, and mesial and distal marginal ridges, and Sk is an area surrounded by an edge of the pit.

The invention discloses a full-mouth rubber barrier for treating the oral cavity of children under general anesthesia, which comprises a split type adjustable bracket formed by connecting a front section and a rear section through a flexible hinge, the front section is arranged in an anterior tooth area, and the adjusting width range is 15-30mm; the rear section is mounted in a rear tooth area, the adjusting width range is 10-25mm, and the adjusting range of a telescopic rod of the rear section in the buccal tongue direction is 18-28mm; the hydrogel liner is in a long strip shape, has the width of 8-10 mm and is attached to mucous membranes on the inner sides of the upper lip and the lower lip; the thickness of the rubber barrier cloth is 0.13-0.15 mm, the surface of the rubber barrier cloth is coated with a nano hydrophobic layer, and the contact angle is gt; at 110 degrees, cutting in an anterior tooth area and a posterior tooth area; the intelligent clamping unit comprises an anterior tooth area metal clamp and a posterior tooth area silica gel clamp, and the anterior tooth area metal clamp is fixed to the neck of a target tooth in an anterior tooth area and is integrated with a miniature pressure sensor; the back tooth area silica gel clamp symmetrically clamps the neck of the breast molar, and a piezoresistive sensor and an electromagnetic release device are arranged in the back tooth area silica gel clamp; the problems that in the prior art, due to poor dental arch shape adaptation, lip and tongue soft tissue compression injuries are caused, and moisture insulation fails in the general anesthesia treatment operation are solved.

The invention discloses an intelligent tooth arrangement method. The method comprises the following steps: acquiring a dentition three-dimensional model; configuration data is obtained, and the configuration data comprises target anterior tooth cutting edge point coordinate information, a defined target occlusal plane and posterior tooth axis inclination vertical constraint information; path planning is executed based on the configuration data so as to determine a tooth arrangement target position of a tooth model on the dentition three-dimensional model, and the preset tooth arrangement rule is used for constraint in the path planning. Through intelligent tooth arrangement, the tooth arrangement efficiency and the adaptation degree with different users are improved.

The utility model belongs to the field of orthodontic instruments, and discloses a locking deep-covering appliance which is an occlusion induction appliance and comprises an appliance body with a jaw pad, an upper containing groove and a lower containing groove, the thickness of the jaw pad in an anterior tooth area is larger than an inhabitation jaw gap of a patient so that the tooth jaw of the patient can be opened for occlusion, and therefore a space for tooth movement is provided. An upper correction groove is formed in the anterior tooth area of the upper containing groove, the inclination angle of the upper correction groove is smaller than that of the upper anterior teeth of a patient, continuous correction force is applied by means of the inclination angle difference of the correction grooves, receding grooves are formed in the posterior tooth areas of the upper containing groove and the lower containing groove so that the posterior teeth can extend, and therefore the upper anterior teeth and the lower anterior teeth can be gradually separated in the vertical direction; therefore, the problem of locking deep covering is effectively corrected.

1. The name of the design product: orthodontic flat guide (wing-shaped flat guide). 2. The use of the design product: used for assisting in lowering upper and lower anterior teeth in invisible correction, stabilizing jaw position, and resisting the passive lowering of posterior teeth caused by the raised bite surface of the invisible corrector. 3. The design points of the design product: in shape. 4. The picture or photo that best indicates the design points: perspective view 1.

The embodiment of the utility model provides an orthodontic system for closing tooth gaps, which is used for being worn on an upper jaw dentition generating gaps after tooth extraction, and comprises a first tooth accommodating part for wrapping teeth in an anterior tooth area and a second tooth accommodating part for wrapping teeth in a posterior tooth area, the second tooth accommodating part comprises a first shell-shaped body which correspondingly wraps the teeth on the left side of the rear tooth area, a second shell-shaped body which correspondingly wraps the teeth on the right side of the rear tooth area, and a palate connecting part which is connected with the tongue side edge of the first shell-shaped body and the tongue side edge of the second shell-shaped body; a fixing part used for hanging an elastic piece is arranged on the lingual side face of the palate connecting part, a traction part is arranged on the first tooth containing part or the tooth surface, corresponding to teeth, of the first tooth containing part, and when the two ends of the elastic piece are hung on the traction part and the fixing part respectively, the elastic piece is hung on the elastic piece. The teeth wrapped by the first tooth storage part move towards the direction of the second tooth storage cavity.

The present invention is oral device that inhibits mastication and ingestion of solid food while minimizing intrusiveness and discomfort in other oral activities. This device is ideal for individuals following an all-liquid diet without relying on willpower alone. The oral device allows a full range of motion of the jaw and the wearer keeps the ability to open and close the mouth, allowing all oral functions other than chewing and swallowing solid food. In various embodiments of the invention, the oral device comprises a set of retainers worn over teeth or retainer bars bonded to, or integrated as part of the retainers. A set of flexible mastication barriers coupled to the retainers or retainer bars and extending from mandible to the maxilla on the lingual side of the mouth inhibit the movement of solid food to the occlusal surfaces of the posterior teeth for chewing. An artificial intelligence platform is implemented to improve fabrication of the oral device and predict and eliminate undercuts in the retainers or retainer bars.

The invention relates to the technical field of tooth sockets, and discloses an invisible tooth socket with an effect of preventing posterior tooth depression, which comprises a tooth socket body, opposite bases are arranged on two sides of the tooth socket body, mounting grooves are formed in the front side surfaces of the bases, mounting plates are arranged on the front side surfaces of the bases, rotating circular plates are arranged on the mounting plates, and traction assemblies are arranged on the rotating circular plates. A positioning assembly is arranged on the mounting plate, a rotatable mounting circular plate is arranged on the rotating circular plate, a mounting rod is arranged on the mounting circular plate, a dismounting assembly is arranged on the mounting rod located in the mounting groove, and a locking assembly is arranged on the mounting plate. Through the structure, the mounting plate can be fixedly mounted on the base through the positioning assembly and the dismounting and mounting assembly, that is, the traction assembly can be fixedly mounted on the base, and when the dismounting and mounting assembly relieves mounting of the mounting plate, the traction assembly is also dismounted from the base, so that dismounting and mounting of the traction assembly at different positions on the base are more convenient; the practical use is convenient.

The invention discloses a design method and device for combining an invisible orthodontic appliance with a customized extraoral arch traction device, and relates to the technical field of tooth correction, an invisible tooth socket is manufactured, a traction channel is integrally arranged on the invisible tooth socket, the traction channel is a hollow through channel, and the traction channel and the invisible tooth socket are integrally manufactured and formed; the traction hook is divided into an anterior tooth area traction hook and a posterior tooth area traction hook, the anterior tooth area traction hook is provided with a spherical structure, the spherical structure of the anterior tooth area traction hook abuts against one side of the posterior tooth of the anterior tooth area traction channel, the posterior tooth area traction hook is provided with a stop curve, and the stop curve abuts against one side of the posterior tooth of the anterior tooth area traction channel. The stopping curve is propped against one side of anterior teeth of the anterior tooth area traction channel; the invention discloses a customized traction head cap.