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直接原因有牙龈撕裂、牙槽骨损伤；
The direct causes were gum laceration and alveolar bone injured.
youdao
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目的探讨前牙及牙槽骨损伤治疗方法。
Objective To study the therapy method of the injury of the teeth and alveolar process.
youdao
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目的探讨前牙及牙槽骨损伤治疗方法。
Objective To study the therapy method of the injury of the teeth and alveolar process.
youdao