13 results about "Mandibular teeth" patented technology

The application discloses a 3D printing resin jaw fork fixing method and system for complex dentition patients, relates to the technical field of oral digital restoration, and comprises the following steps: obtaining intraoral scanning data of the dentition patient, extracting mandibular dentition support points, undercut locking areas and dynamic occlusion interference boundaries based on the occlusion point trajectory, establishing a three-dimensional digital model of the mandibular full dentition and occlusion relationship with bearing stability weight and motion avoidance constraints, and performing coordinate unification and assembly gap matching according to the interface specifications of the scanning face bow, the occlusion recorder and the mandibular metal jaw fork to obtain a preliminary docking feature set. The 3D printing resin jaw fork fixing method and system for complex dentition patients improve the accuracy, repeatability and clinical operation efficiency of occlusion recording and mandibular motion analysis of complex dentition patients.

A mandibular advancement device is described, and may include an upper portion for fitting to maxillary teeth and a lower portion for fitting to mandibular teeth. The system may include one or more connecting bars, which may be provided in varying lengths, that allow the upper portion and lower portion to be pivotably connected such that horizontal and vertical articulation are possible. A kit is also described, which may allow a user to mold the device to their teeth and select from a plurality of connecting bars having different lengths.

This invention discloses a virtual jawbone simulation method and system based on intraoral 3D scanning, relating to the field of computer simulation. The method includes: acquiring intraoral 3D scanning data and constructing a virtual 3D model of the maxillary and mandibular dentition; collecting intraoral scanning data according to continuous data frames of the user's opening and closing movements, identifying the relative motion information between the maxillary and mandibular dentition during the opening and closing process, and establishing a mapping relationship between opening and closing parameters and intraoral scanning data; constructing a dynamic temporal opening and closing model based on the mapping relationship, and embedding the dynamic temporal opening and closing model into the virtual 3D model to perform dynamic simulation of the maxilla and mandible. This application solves the technical problem of low matching degree between the simulated motion trajectory and the actual physiological movement law of the human mandible in existing jawbone simulations, which makes it impossible to accurately reproduce the dynamic occlusal process. It achieves the technical effect of improving the matching degree between the virtual jawbone simulation motion trajectory and the actual physiological movement law of the human mandible, and accurately reproducing the dynamic occlusal process of the maxilla and mandible.

The invention discloses an improved mandibular protraction position reconstruction appliance, which relates to the field of oral cavity correction, and comprises an upper jaw anchoring assembly and a lower jaw anchoring assembly which are respectively fixed on an upper jaw dentition and a lower jaw dentition and are matched with each other to realize mandibular protraction guidance, the device comprises an upper jaw crown, a buccal tube body and an adjusting component, the upper jaw crown is an unprepared adhesive crown, and the buccal tube body is fixed on the buccal side of the upper jaw crown; the buccal side tube body is a buccal surface square wire tube with a threaded hole formed in the side wall, a locking piece is arranged in the threaded hole, one end of the adjusting part is a square wire end, and the other end of the adjusting part is an arc-shaped end embedded with the lower jaw anchoring assembly; the mandibular anchoring assembly is matched with mandibular posterior teeth and comprises a mandibular crown and an arm-shaped embedding part; according to the appliance, the accurate control and retention of the protraction amount of the lower jaw are realized through the quantitatively adjustable locking mechanism and the unprepared adhesive crown.

This orofacial myofunctional rehabilitation splint is characterized by a lower vertical outer wall (2) with a reduced height of 2 or 3 mm at most, allowing the resting pressure of the orbicularis oris muscle to be exerted on the mandibular alveolar arch. This feature helps prevent, or even reduce after an interceptive treatment phase, unwanted labial tipping of the mandibular incisors. This splint is further characterized by a tongue ramp (3) without a wall along the lingual edge of the upper part of the occlusal plane (8). The tongue ramp (3) thus continues laterally with the occlusal plane (4) via a rounded edge (8). This feature induces passive elevation and propulsion of the tongue, which is accompanied by an opening of the upper airways and helps to reduce snoring and retrain swallowing.The tongue ramp (3) is extended anteriorly by an anterior guide for the tip of the tongue (9). This guide is specifically designed to lift and guide the tip of the tongue forward and upward, ensuring its proprioceptive contact with the retro-incisive papilla, in order to open the upper airways and promote the rehabilitation of swallowing and resting tongue posture. The device according to the invention is particularly intended for the rehabilitation of breathing, swallowing, and tongue posture; the improvement of obstructive sleep-disordered breathing, particularly snoring; and the improvement of dental occlusion.

A mouthpiece apparatus used to reduce snoring. The mouthpiece includes a body that is sized and shaped for location in a human mouth. The maxillar and mandibular sets of teeth press against two exterior walls that are interconnected by a connecting sidewall. An interior strengthening matrix is located between the inner walls of the body. The inner walls of the body face each other so that the strengthening matrix allows communication between the exterior walls and allows movement of the body when the set of teeth move relative to each other.

The invention provides a tooth socket and a preparation method of a dendrobium officinale extracting solution administration tooth socket. The tooth socket at least comprises a tooth socket body and a liquid storage sheet. The tooth socket body comprises an upper jaw tooth socket and a lower jaw tooth socket, the upper jaw tooth socket and the lower jaw tooth socket are provided with occlusal surfaces, a medicine groove is formed in the side, away from the occlusal surfaces, of the upper jaw tooth socket, the upper jaw tooth socket and the lower jaw tooth socket are connected at the ends, and an elastic element is arranged at the connecting position. And the occlusion directions of the upper jaw tooth socket and the lower jaw tooth socket are opposite. And the liquid storage sheet is arranged on the occlusal surface of the upper jaw tooth socket and is communicated with the medicine groove. The device is suitable for patients suffering from local mucosal lesion related reactions during radiotherapy and after radiotherapy, drug action time can be prolonged through continuous dynamic drug delivery, targeted delivery can be achieved, drug effective components make continuous contact with the oral ulcer part of the patient at the same concentration, local treatment efficiency is improved, oral muscle strength training is synchronously carried out, and the treatment effect is improved. The oral cavity function of the patient can be maintained, and the completion rate of radiotherapy can be improved.

A mouth-operated control device comprising an arched casing (10) configured for at least part of the casing (10) to be arranged between a maxillary dentition and a mandibular dentition of the user in an operating position, a first at least bidirectional input interface (21) housed in the concave region of the casing (10) and accessible to the tongue of the user; a second at least bidirectional input interface (22) in the part of the casing (10) intended for being arranged between the maxillary dentition and the mandibular dentition selected to be arranged facing the mandibular dentition of the user, allowing the operation thereof with the relative movement between the maxillary dentition and the mandibular dentition of the user; and a control electronics (30) connected to all the input interfaces (21, 22, 23) for the transmission of control signals to an external device.

The invention relates to the technical field of oral endothelial valve repair, and particularly discloses an oral endothelial valve repair postoperative occlusion limiting device which comprises an upper tooth socket and a lower tooth socket which are matched with healthy side upper jaw teeth and healthy side lower jaw teeth respectively, and the end of the upper tooth socket is connected with the end of the lower tooth socket through a curved surface connecting piece. The surface, facing the lower tooth socket, of the upper tooth socket is of a bionic structure of maxillary teeth; the lower tooth socket comprises a lower base, an upper tooth seat and a plurality of adjusting blocks, the lower surface of the lower base is matched with mandibular teeth, the upper tooth seat is arranged on the uppermost adjusting block, and the upper surface of the upper tooth seat is of a bionic structure of the mandibular teeth; flanges are arranged on the two sides of the upper tooth base, a groove body is formed between the two flanges, limiting protrusions are arranged on the surfaces, located in the groove body, of the flanges, clamping grooves matched with the limiting protrusions are formed in the inner side surface and the outer side surface of each adjusting block, and the limiting protrusions are clamped into the clamping grooves to lock the upper tooth base and the adjusting blocks. And according to the swelling condition of an operation area, the healthy side can be precisely limited, and the occlusion height can be dynamically adapted.

A configurable time-delayed oral mandible displacement device includes a top plate configured for engaging maxillary teeth of a user and a bottom plate configured for engaging mandibular teeth of the user. The bottom plate is slidably coupled to the top plate for relative movement between a non-extended position and an extended position for displacing the mandible of the user during sleep. An adjustment mechanism is provided for selectably setting at least an initial position of the bottom plate relative to the top plate, within a predetermined range of initial positions, the adjustment mechanism comprising at least one element fabricated from a shape memory material (SMM).

The invention relates to the technical field of clinical medical engineering, in particular to an oral cavity auxiliary fixing device for intubation anesthesia. Comprising upper supporting frames which are symmetrically distributed, a first mounting block is arranged between the upper supporting frames which are symmetrically distributed, the first mounting block is fixedly connected with an upper extrusion frame, a first pressing plate is slidably connected into the upper extrusion frame and used for extruding maxillary teeth of a patient, and the upper supporting frames are rotatably connected with a lower supporting frame; a second mounting block is arranged between the symmetrically-distributed lower supporting frames, a lower extrusion frame is fixedly connected to the second mounting block, a second pressing plate is slidably connected into the lower extrusion frame and used for extruding lower jaw teeth of a patient, and the symmetrically-distributed upper supporting frames are jointly provided with a fixing belt. By rotating the lower supporting frame, the first pressing plate and the second pressing plate move back to back, maxillary teeth and mandibular teeth of a patient are squeezed respectively, the oral cavity of the patient is gradually opened, and accurate feeding of a catheter is guaranteed.

The invention discloses a jaw position registration method, device and equipment based on multi-dimensional intraoral scanning data, and the method comprises the steps: reading upper and lower jaw scanning data and occlusion record data of a user, and obtaining an upper jaw dentition point cloud, a lower jaw dentition point cloud, a left buccal surface point cloud and a right buccal surface point cloud based on the upper and lower jaw scanning data and the occlusion record data; performing up-down left point cloud registration based on the maxillary dentition point cloud, the mandibular dentition point cloud and the left buccal surface point cloud, performing up-down right point cloud registration based on the maxillary dentition point cloud, the mandibular dentition point cloud and the right buccal surface point cloud, selecting an optimal registration path according to a left path and right path registration result, and obtaining a coarse registration model according to the optimal registration path; and iterating the pose of the degree of freedom of the coarse registration model to obtain a registration model, wherein the occlusion mass fraction Q of the registration model is maximum. The method solves the fundamental problem that the point clouds of the upper and lower jaws have no overlapping area and cannot be registered.

A fossa-type three-dimensional omnidirectional jaw position frame device is provided, which realizes mutual conversion between a denture arrangement mode and a jaw position adjustment mode by using lock conversion between a mandibular body base, a mandibular ramus assembly, and a maxillary body base. [Solution] The fossa-type three-dimensional omnidirectional jaw position frame device uses two mandibular ramus synchronization devices to synchronize the two mandibular ramus, and also synchronizes three-dimensional operation by interlocking the incisal rods in the corresponding condylar fossa and incisal fossa, thereby realizing the operating state of the mandibular dentition in the alternating cusp range.