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美国高校测试新型透明矫治器:热水软化、入口复原
研究团队指出,热塑性材料不是硬质塑料,取出后放入热水中会软化,便于重新戴入口腔,随后口腔温度会使其硬化恢复原状,从而有效移动牙齿。此外,热塑性材料的柔软性使其比金属更适合与“牙齿附件”配合使用。该材料还支持分层设计,通过调整每副矫治器的厚度提升矫治效 ...
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