15 results about "Posterior teeth" patented technology

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.

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.

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.

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 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.

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 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.

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.