Objective to analyze the effect of preserving severely damaged teeth such as stubbed tooth root, crown and vertically fractured tooth through compositive therapy.

目的利用综合治疗，对残根、残冠、纵折牙等严重缺损牙进行保存治疗并分析其疗效。

youdao

This means the teeth, which grow continuously, can regularly shed damaged areas to keep a well-honed edge.

这就意味着，这些不断生长的牙齿，可以有规律地脱落磨损部分，以保持边缘锋利。

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Kaiden, who will be 3 in July, has recovered, although severe reflux after the incident damaged his teeth.

凯登已经康复，今年7月就要满3岁，但事故发生后造成的严重的胃分泌物返流，已经坏了他的牙齿。

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Bob Thompson says the free clinic was the only way he could get help for his teeth, which were damaged in an accident.

VOA: standard.2009.06.13

Fixing damaged teeth is difficult and expensive, according to Puskas.

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