目的研究后牙折裂综合治疗后的保存效果。
Objective To research the preserved effect with complex therapy of the fractured premolars and molars.
引用折裂率的概念探讨牙折裂与年龄增长的相关性。
To discuss the relevance between tooth fracture and the age growing, the concept of fracture rate has been quoted.
目的:了解金属全冠对舰艇人员折裂牙修复的作用。
Objective: To find out the effect of metal full crown in the restoration of seamen's split teeth.
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