Manufacturing method of personalized lingual orthodontic appliance

Abstract

The invention discloses a manufacturing method of a personalized lingual orthodontic appliance, which comprises the following steps: (1) taking a digital dental model of a patient, and arranging teethon the digital dental model to obtain a dentition model with an ideal normal dentition shape; (2) designing continuous and smooth strip-shaped wires according to the dentition shape of the dentitionmodel; (3) opening the die by using a die manufacturing process to manufacture a bracket body; (4) designing a personalized lingual bracket bottom plate model according to the position relationship between the bracket body and the lingual side surface of the tooth and the shape of the lingual side surface of the tooth; (5) welding the bracket body and the bracket bottom plate into an integral bracket; and (6) applying the bracket and the strip-shaped wire to clinical orthodontics. According to the invention, the bracket body is prepared by a mold process, the non-standard bracket bottom plateis prepared by a 3D printing technology, and then the bracket bottom plate and the bracket body are welded, so that the precision of the bracket groove, especially the right-angle part in the groove,is improved, an arch wire is convenient to install, the stress of teeth is close to an ideal state, and the teeth can be controlled to move in a three-dimensional direction.

Description

technical field

[0001] The invention relates to the field of orthodontics, in particular to a method for manufacturing a personalized lingual orthodontic appliance. Background technique

[0002] As orthodontic patients have higher and higher aesthetic requirements for aligners, invisible orthodontics have attracted more and more attention from orthodontists. For this reason, several invisible orthodontic techniques have emerged, such as ceramic brackets, transparent braces, and lingual appliances, but only the lingual appliance can be truly invisible and treat various malocclusions. appliance. In the past ten years, the advocates of lingual orthodontic technology have made lingual orthodontic technology a mature and efficient fixed orthodontic technology through a lot of clinical practice and exploration, and it is also a popular technology in the clinical field of orthodontics . However, the bonding accuracy of the lingual appliance, the bending accuracy of the arch wire...

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