Manufacturing method of repositioning biteplate for treating temporal-mandibular joint disc recoverable forward displacement and repositioning biteplate

Abstract

The invention discloses a manufacturing method of a biteplate for treating temporal-mandibular joint disc displacement by 3D printing. The manufacturing method comprises the following steps: (1) mandible condyle process positions of patients are recorded and fixed; (2) craniomaxillofacial surfaces of the patients are shot to obtain conical beam CT data of the patients; (3) upper and lower jawboneparts of the patients are rebuilt; and the head positions of the patients are adjusted according to frankfort planes of the patients; (4) bone tissue CT values, teeth and occlusalf surface areas are selected from three-dimensional drawing software for three-dimensional rebuilding of occulsalf surface data of the patients; (5) occulsalf surface three-dimensional models of the patients are rebuilt in the three-dimensional drawing software; (6) interference parts of the occulsalf surface three-dimensional models are removed; (7) the occulsalf surface three-dimensional models are guided into 3D printer mated software; (8) upper jaw parts and lower jaw parts of occlusal pads are designed; and (9) a 3D printer is used for printing to finish manufacturing of the occlusal pads. Through projectionsformed on the inner side of the biteplate, lower teeth cannot retreat due to stop by lower jaw projections of the biteplate, so that the lower jaws of the patients are maintained in a protraction state to treat the temporal-mandibular joint disc recoverable forward displacement.

Description

technical field

[0001] The invention belongs to the technical field of oral medical devices, and in particular relates to a manufacturing method of a repositioning occlusal plate and a repositioning occlusal plate for treating the repositionable anterior displacement of the temporomandibular joint disc. Background technique

[0002] Temporomandibular joint disc displacement (anterior disc displacement, ADD) is a common clinical disease in stomatology, which refers to the forward displacement of the articular disc beyond its normal position when the cusps are interlaced above or slightly behind crest). According to whether the disc-condyle relationship can return to normal when the mouth is opened, ADD is divided into reversible and irreversible anterior displacement, that is, during the opening process, the articular disc can bounce back to restore the normal disc-condyle position relationship. It is reversible anterior disc displacement; after the condyle slides forward an...

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