上颌第三磨牙牙体形态的研究_中国美容医学杂志社官方网站 关键词]上颌第三磨牙；牙体形态；牙根 [gap=1025]Key words:maxillary third molars;tooth morphology;root of teeth
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residual root of teeth 牙残根
root stress of gear teeth 齿根弯曲应力
hypoplasia of teeth root 牙根发育不良
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If you are removing it for prevention of tooth decay or periodontal disease such as gingivitis, which destroys the root and makes the teeth fall out then I believe it's best at night.
WSJ: How to Be a Better Flosser
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