10 results about "Lower anterior" patented technology

A method for digitally designing a denture for a patient, where the denture includes a plurality of denture teeth, where designing the denture includes transforming denture teeth of the denture, wherein the method includes obtaining a 3D scan of the upper jaw and lower jaw of the patient; obtaining a digital 3D arrangement of the denture teeth, where the denture teeth are pre-set in occlusion; digitally arranging the 3D scan of the upper jaw and lower jaw relative to the 3D arrangement of the denture teeth; digitally grouping the denture teeth in four groups, the four groups includes an upper anterior group, a lower anterior group, a left posterior group, and a right posterior group; and digitally arranging the upper anterior group first, the left and right posterior groups second and the lower anterior group third.

This invention relates to a mandibular premolar guiding device for reducing labial inclination of the lower anterior teeth. The device includes an upper molar band, a lower molar band, a premolar guide, a push plate, and an implant. The upper and lower molar bands are fixed to the upper and lower molars, respectively. The premolar guide is located on the buccal side of the upper molar band, and the push plate is fixed on the buccal side of the lower molar band. The front end of the premolar guide bends downward to form a pusher portion. During occlusion, the pusher portion pushes against the push plate to achieve mandibular premolar guidance. The buccal side of the lower molar band also has a buccal tube. The lower incisor has a bracket. The buccal tube and the bracket are connected by a lower archwire. The lower archwire has a lower traction hook corresponding to the lower incisor. The implant is located between the lower molar and the lower premolar. The implant and the lower traction hook are connected by a traction member. This device can simultaneously achieve mandibular premolar guidance and reduce labial inclination of the lower anterior teeth.

The present application discloses a dental assembly, comprising a first matching structure arranged corresponding to the lingual side or incisal end of the upper anterior teeth and a second matching structure arranged corresponding to the labial side or incisal end of the lower anterior teeth, the first matching structure and the second matching structure are configured to abut each other to generate a force or a torque when the upper and lower jaws are occluded, the force or the torque at least includes a labial tipping force corresponding to the upper anterior teeth or a labial tipping torque corresponding to the upper anterior teeth. The present application at least makes the upper anterior teeth labially inclined during the treatment process, in the first aspect, the relative position of the upper anterior teeth and the alveolar bone can be adjusted step by step so that the upper anterior teeth are suitable for the operation of lowering; in the second aspect, the gap between the upper anterior teeth and the lower anterior teeth can be increased to facilitate the installation design of the first matching structure and the second matching structure; in the third aspect, the upper anterior teeth have a certain inclination, which can facilitate the interaction with the lower anterior teeth and facilitate the lowering and inward retraction of the anterior teeth.

The invention relates to the technical field of orthodontics, in particular to an appliance suitable for low-angle Angle class II classification 2 patients. Comprising a base plate covering a palatal soft tissue area of an anterior tooth area of an upper jaw, a built-in spiral arch expander, a long arrow clamp and an adjacent hook which are arranged in a posterior tooth area of the upper jaw, a hyperbolic labial arch which is arranged on the labial side of the anterior tooth and of which the tail end is fixed in the base plate, and an elastic supporting piece arranged on the palatal side, one end of the elastic supporting piece is a fixed end, the other end is a free end, the fixed end is inserted and fixed in the base plate, and the free end points to and lightly touches the palate side of the upper anterior teeth; an anatomical flat guide face matched with lower teeth is arranged at the position, making contact with the lower teeth, of the base plate, and a guide groove used for guiding the lower front teeth to be limited front and back is formed in the lip side of the anatomical flat guide face. The lip side of the base support is further provided with an incisor tooth cap used for guiding left and right retention of lower jaw incisor teeth, and the guiding groove and the incisor tooth cap are matched with the anatomical form of a lower tooth body.

The auxiliary tool comprises an upper elastic supporting wire and a lower elastic supporting wire, the two ends of the upper elastic supporting wire and the two ends of the lower elastic supporting wire are fixedly connected, and the distance between the upper elastic supporting wire and the lower elastic supporting wire is gradually increased from the two ends to the middle. The upper elastic supporting wire is provided with an upper left pressure transmission piece and an upper right pressure transmission piece, and the lower elastic supporting wire is provided with a lower left pressure transmission piece and a lower right pressure transmission piece. According to the application, the upper pressure transmission piece is connected with a lingual side buckling hook or a lingual button on the cheek side of the existing upper jaw invisible tooth socket, and the lower pressure transmission piece is connected with a lingual side buckling hook or a lingual button on the cheek side of the existing lower jaw invisible tooth socket, so that the upper and lower invisible tooth sockets are pulled through the elastic restoring force action of the upper and lower elastic supporting wires; and then the upper and lower anterior teeth are triggered to be pressed to open anterior tooth occlusion.

This application discloses a novel device for simultaneously expanding and depressing the mandibular anterior teeth to relieve posterior tooth occlusion, relating to the field of orthodontic technology. It includes a maxillary cast-crown spiral expander, a metal mesh split-plane guide, and traction clips. The maxillary cast-crown spiral expander comprises a cast crown and a spiral expander. The cast crown is used to secure the first premolar, second premolar, and first molar, and the spiral expander is fixedly connected to the cast crown. The metal mesh split-plane guide conforms to the anterior part of the maxillary palate and is fixedly connected to the cast crown. The traction clips are located on the buccal side of the cast crown and are cross-pulled by elastic bands with traction clips located on the lingual side of the mandibular posterior teeth. This application simultaneously expands the arch to solve the problems of maxillary width and vertical misalignment, and utilizes the maxillary cast-crown spiral expander as a reinforcing anchorage to prevent elongation and rotation of the maxillary anchorage teeth. It matches the width of the maxilla and mandible while minimizing anchorage loss, thus relieving posterior tooth occlusion.

The invention discloses a segmented invisible appliance for efficiently arranging teeth and correcting bad tongue habits, which comprises an upper jaw correction body and a lower jaw correction body, both the upper jaw correction body and the lower jaw correction body are invisible appliances wrapping a complete dentition, and the front tooth parts of the upper jaw correction body and the lower jaw correction body are of dispersed structures; the maxillary correction body comprises a maxillary rear tooth part and a maxillary front tooth part, the maxillary front tooth part comprises a plurality of maxillary front tooth bodies, the adjacent maxillary front tooth bodies as well as the maxillary front tooth bodies and the maxillary rear tooth part at the two ends are connected through tongue bars, and the tongue bars are of U-shaped structures extending towards the lower jaw; a tongue spine is arranged on the tongue side of the lower jaw correction body, and the tongue spine is a protrusion facing the tongue side. According to the invention, not only can the bad tongue position be effectively limited by utilizing the tooth socket connecting structure and the correction efficiency of the tongue habit be obviously improved, but also the rapid alignment of the upper and lower anterior teeth can be realized by utilizing the elasticity of the tooth socket connecting structure, and the design requirements of the appliance under different tooth movement scenes can be met by adjusting the parameters of the connecting structure.

This invention provides an occlusal guiding appliance for the mixed dentition period, an orthodontic system for guiding jawbone growth during the mixed dentition period, and a design method thereof. The occlusal guiding appliance for the mixed dentition period includes: a maxillary brace; a mandibular brace; and an intermaxillary connector located between the occlusal surfaces of the maxillary and mandibular braces in the posterior region. The maxillary and mandibular braces form a rigid, immovable integral structure at the occlusal surfaces via the intermaxillary connector. The intermaxillary connector has a preset thickness to open the occlusal contact between the upper and lower anterior teeth when worn, and is configured to lock the mandibular brace at a preset three-dimensional spatial position relative to the maxillary brace body. This allows the occlusal guiding appliance for the mixed dentition period to use the upper and lower dentitions as an integral interactive anchor when worn, converting occlusal force into orthodontic force acting on the dentition or jawbone.

This invention discloses a personalized maxillary and mandibular combined traction device for patients with skeletal Class II high-angle mandibular retrusion, belonging to the field of orthodontics. The device includes personalized maxillary / mandibular titanium plates, elastic traction components, and brackets. Two elastic traction components are included, one for intruding the maxillary molars and the other for tractioning the mandible forward. The maxillary and mandibular titanium plates are positioned at the center of jawbone resistance and are both 3D-printed integrated personalized designs. The elasticity of the traction components can be selected according to needs. This device simultaneously achieves mandibular advancement and maxillary molar intrusion, efficiently enabling early correction of skeletal Class II high-angle mandibular retrusion patients. It also avoids labial tipping of the lower anterior teeth and mesial tilting of the lower posterior teeth. The titanium plates conform to the jawbone, resulting in minimal intraoperative trauma, precise force control, and significantly improved treatment effectiveness and efficiency.

The invention provides an orthodontic tooth socket and an orthodontic kit. The orthodontic tooth socket comprises: an occlusal pad which extends in an arch shape and defines a plane tangent to two end parts in the extension direction of the occlusal pad as a rear end surface; the upper outer stopper is connected to the outer end of the occlusal pad and arranged on one side of the occlusal pad in a protruding mode, the upper outer stopper is provided with a first middle part used for being arranged on the lip side of the upper anterior teeth, and the first middle part is provided with a first inner wall face, and the vertical distance between the first inner wall face and the rear end face is a first distance L1; the lower outer stopper is connected to the outer end of the occlusal pad, is convexly arranged on one side, deviating from the upper outer stopper, of the occlusal pad, and is provided with a second middle part which is arranged on the lip side of lower anterior teeth, and the second middle part is provided with a second inner wall surface of which the vertical distance to the rear end surface is a second distance L2; the first distance L1 and the second distance L2 meet the condition that L1-L2 is greater than or equal to 4mm, so that the first inner wall surface is spaced from the upper anterior teeth, and the second inner wall surface is attached to the lower anterior teeth. According to the orthodontic tooth socket provided by the invention, a space required by forward movement of the lower jaw can be opened up, and a space basis is provided for subsequently guiding the lower jaw.