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年轻恒前牙冠折比较常见,能否及时正确处理患牙对保留牙齿功能,牙颌颜面正常发育有着重要意义。资料与方法一、一般资料:本组收集1986～1996年间门诊年轻恒前牙冠折患儿94例,随访83例;共98颗牙。男54例,女29例,年龄7～11岁,其中10～11岁47例,占47.95%。外伤牙最多见于上中切牙共84颗,占85.71%;上侧切牙7例,占7.14%;下中切牙6颗占6.12%;下侧切牙1颗占1.02%。
Young constant anterior crown crowns are more common, can timely and correctly deal with the teeth to retain the function of teeth, jaw and face normal development of great significance. Materials and Methods First, the general information: This group collected from 1986 to 1996 outpatient young permanent crown of children in 94 cases, followed up 83 cases; a total of 98 teeth. There were 54 males and 29 females, ranging in age from 7 to 11 years old, 47 of whom were 10 to 11 years old, accounting for 47.95%. Most of the traumatic teeth were found in the upper incisors totaling 84, accounting for 85.71%; upper incisors in 7 cases, accounting for 7.14%; lower incisors 6 accounted for 6.12%; lower incisors accounted for 1.02%.