Method for manufacturing molds for orthodontic traction devices and method for manufacturing same

Abstract

The invention relates to the field of oral orthodontics, and discloses a method for manufacturing orthodontic traction devices and a method for manufacturing molds for the same. The method for manufacturing the molds includes building models; manufacturing soft molds of the models; manufacturing hard molds for coating soft molds; forming mold fetching openings in the hard molds; fetching the models for the coating soft molds from the mold fetching openings to obtain hard molds with mold fetching openings; releasing the models from mold releasing openings of the soft molds to obtain soft molds; placing the soft molds without the models into the hard molds from the mold fetching openings of the hard molds to obtain the molds. Compared with the prior art, the methods have the advantages that the orthodontic traction devices can be manufactured by the aid of the molds, only injection molding materials need to be injected into the soft molds of the molds when the orthodontic traction devices are about to be manufactured, the molds filled with the injection molding materials can cling onto the surfaces of teeth, and the orthodontic traction devices can be obtained after the injection molding materials are coagulated; the orthodontic traction devices and the molds are easy to manufacture and low in cost, the hard molds and the soft molds can be reused after being separated from one another, and accordingly the manufacturing costs of the orthodontic traction devices further can be reduced.

Description

technical field [0001] The invention relates to the field of orthodontics, in particular to an orthodontic traction device and a method for making a mold thereof. Background technique [0002] Orthodontics, also known as orthodontics, is the process of rearranging the teeth while maintaining the shape of the original individual teeth, and restoring and rebuilding the oral function and normal shape. [0003] At present, in orthodontic treatment, the use of clear aligners to straighten teeth is becoming more and more popular. In invisible orthodontics, it is necessary to bond a traction hook on the tooth surface of the tooth, and then hang a rubber ring to perform traction and force on the invisible orthodontic appliance. The traction hooks commonly used in clinical practice are artificial stainless steel wire bending or metal products, which need to be bonded to the tooth surface with composite resin. However, it takes a certain amount of time to manually bend the traction h...

AI Technical Summary

Problems solved by technology

The traction hooks commonly used in clinical practice are artificial stainless steel wire bending or metal products, which need to be bonded to the tooth surface with composite resin. However, it takes a certain amount of time to manually bend the traction hooks, and metal products require certain cost

In addition, the artificially bent and metal-finished traction hooks are all made of stainless steel, which does not match the color of the oral cavity and affects the appearance

In addition, the bonding strength between metal and resin is low, and it is easy to fall off during use

Images