A scissor bite is preferred, but a level bite is acceptable. It is not unusual to see dropped (receding) lower central incisor teeth.
英
美
- 如剪刀状完全吻合的咬合是最好的,咬合稍微偏差一点是可以被接受的。但上下齿看起来不可以是明显地前后落差。
- 今日热词
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- 深远海浮式风电平台 - deep-sea floating wind power platform
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- 京雄高速公路 - Beijing-Xiongan expressway
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- 农业及相关产业增加值 - the added value of agriculture and related industries