9 results about "Orthodontic technology" patented technology

This invention relates to the field of digital orthodontics, and discloses a method, system, device, and storage medium for concave shrinkage envelope design of invisible aligners. The method acquires a three-dimensional model of the patient's dentition and a target dentition model, generates an initial wrapping mesh on the outer side of the target dentition model, and gradually approximates the target dentition model through local mesh control and iterative shrinkage. Simultaneously, tight fit or gap retention constraints are set for different areas, and smoothing processing is combined to improve mesh stability, ultimately obtaining a continuous, watertight inner surface model of the aligner. This invention improves envelope efficiency, fit, and adaptability for removal and wearing.

This invention discloses a prefabricated personalized nickel-titanium archwire, relating to the field of orthodontic technology. The invention includes: S1: scanning the dentition of malocclusions in a patient's body using 3D scanning; S2: capturing 3D, panoramic, and cephalad images from X-rays of the dentition of malocclusions in the patient's body; S3: taking impressions using printing or plaster; S4: designing an ideal jaw based on the image data and measuring the difference between the in-body jaw and the ideal jaw, thereby obtaining the difference between each in-body malocclusion and its target position; S5: based on the data results, bending and shaping the archwire using equipment to complete the orthodontic representation of all target teeth. By designing the archwire according to the multi-sequence difference of the in-body malocclusions, compared to traditional orthodontic surgery, frequent changes of various archwires are not required during the correction of various malocclusions, simplifying the treatment procedure and shortening the treatment time.

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 utility model belongs to the orthodontic technical field, concretely relates to a kind of orthodontic lip block of membrane pressing retention, including membrane pressing retention layer, the membrane pressing retention layer includes membrane pressing base plate and stopper, the stopper is symmetrically adsorbed to membrane pressing base plate outside, stainless steel wire is embedded on the stopper, two ends of the stainless steel wire are connected with membrane pressing base plate, the middle part of the stainless steel wire is equipped with protrusion.The utility model not only improves the retention stability of lip block, also improves the comfort and aesthetic property of wearing, simultaneously improves cleaning efficiency, effectively improves oral hygiene condition.

The present application relates to a kind of orthodontic process monitoring methods based on dentition three-dimensional model prediction in the technical field of orthodontics, comprising the following steps: a kind of orthodontic process monitoring methods based on dentition three-dimensional model prediction, characterized by comprising the following steps: S1, obtain the three-dimensional dental model data of T n Moment and segmentation processing, output the mask and corresponding tooth number of single tooth in three-dimensional dental model;S2, obtain the two-dimensional image data of N teeth of T n+m Moment and segmentation processing, output the mask and corresponding tooth number of single tooth of two-dimensional tooth;S3, reference point detection: including by immovable tooth prediction and manual marking;S4, camera pose estimation: S5, tooth pose estimation: S6, dentition three-dimensional reconstruction.The present application realizes the accurate estimation, monitoring of moving tooth in orthodontic treatment process by the prediction of dentition three-dimensional model at different time in orthodontic process, can effectively assist orthodontic scheme to smoothly carry out.

The utility model relates to a kind of press type self-locking orthodontic bracket mechanism, belong to oral orthodontic technical field. Including bracket main body, press cover and rebound mechanism;Bracket main body is equipped with sliding slot, the bottom of press cover is equipped with slide rail, slide rail is embedded in sliding slot and moves along sliding slot;Rebound mechanism is set on bracket main body, and located at the side of press cover, retractable movable rod is equipped in rebound mechanism, recess is equipped on press cover and is resisted with movable rod, to fix press cover on bracket main body. The utility model realizes bracket locking, unlocking and cover opening and closing by simple pressing. Bracket lifting and cover sliding synchronous linkage, different from the mode that bracket and cover are respectively operated in tradition, reduce operation step and time. Overall mechanical structure design is reasonable, compared with some complex existing bracket structure, required parts are less, processing difficulty is low, under the premise of guaranteeing function, reduce raw material cost and processing cost.