Results in the patients with mild tooth agenesis, the limited changes in hard and soft tissue parameters were induced only by the number of tooth absence.
2
骨缺损是因骨创伤、感染、肿瘤切除或先天性疾病等造成骨质局部缺失的一种疾病。
Bone defect may be the result of a variety of causes such as trauma, infection, tumor resection and skeletal abnormalities.
3
女性先天性牙齿缺失数目高于男性，二者的差别具有统计学意义（P<0.05）；
The number of female who were hypodontia was higher than that of male(P<0.05).
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