Orthodontic appliance preparation method and orthodontic appliance

Abstract

The invention discloses a preparation method of a tooth straightener and a tooth straightener. The preparation method of the tooth straightener comprises: mixing terephthalic acid, ethylene glycol and 1,4-cyclohexanedimethanol in a reaction kettle, and reacting Finally, the copolyester is obtained, and the copolyester is cut into a copolyester film with a thickness of 0.6-1.0mm; polytetramethylene ether glycol and diphenylmethane diisocyanate are prepolymerized to obtain isocyanate prepolymer polymer; the isocyanate prepolymer and chain extender are mixed and stirred to obtain polyurethane elastomer, and the polyurethane elastomer is poured on both sides of the copolyester diaphragm to obtain the corrector model; The model of the orthodontic appliance is vulcanized to obtain the orthodontic appliance. The invention improves the toughness and flexibility of the material of the orthodontic appliance, thereby improving the durability of the orthodontic effect.

Description

technical field [0001] The invention relates to the technical field of preparing a dental aligner, in particular to a preparation method of a dental aligner and the dental aligner. Background technique [0002] With the advancement of science and technology, orthodontic appliances have increasingly become an important tool for people to correct the shape of their teeth. At present, the materials used to make orthodontic appliances on the market are usually hard and high-transparency thermoplastic polymer materials, such as polycarbonate, polyurethane, polystyrene, and polyacrylate. [0003] However, the above polymer materials still have technical defects that cannot be ignored as dental aligners. For example, the polymer materials have insufficient material toughness, are easy to break, and have low flexibility and elasticity, which will cause the correction effect of the dental aligner to continue to weaken over time. Deterioration of the orthodontic effect of orthodontic...

AI Technical Summary

Problems solved by technology

[0003] However, the above polymer materials still have technical defects that cannot be ignored as dental aligners. For example, the polymer materials have insufficient material toughness, are easy to break, and have low flexibility and elasticity, which will cause the correction effect of the dental aligner to continue to weaken over time. Orthodontic effect of deteriorating orthodontic appliances

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