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因牙体缺损的邻接不良或食物嵌塞严重，需恢复邻面接触点者。
Tooth defect with bad proximal relation and food impaction need recover proximal contact.
youdao
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因牙体缺损的邻接不良或食物嵌塞严重，需恢复邻面接触点者。
Tooth defect with bad proximal relation and food impaction need recover proximal contact.
youdao