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7~12岁是儿童乳牙脱落,恒牙萌出的替牙期,此时期是颌骨发育的快速生长时期,任何影响颌、胎平衡的因素都可能导致牙胎畸形的发生。早期诊断治疗口腔及周围器官的疾病,纠正口腔不良习惯,可有效地预防、阻断牙胎畸形的发生。近年我科共治疗126例牙胎畸形病人,其中46例是替牙期牙(牙合)胎畸形病,占36.5%,现分析如下。材料与方法1．临床资料:1992~1998年本院门诊替牙期正畸病人46例。男性21例,女性25例。最大年龄11岁,最小年龄5岁,平均年龄8.5岁。由唇习惯及口呼吸引起的19例,舌不良习惯引起的8例,牙替换异常的10例,多生牙引起的9例。其病因及畸型分类。(1)反(牙合):10例,咬上唇习惯引起8例;家族
7 to 12 years old children teeth deciduous, permanent teeth eruption period, this period is the rapid growth of the jaw growth period, any impact on the jaw, the balance of fetal factors may lead to the occurrence of dental malformations. Early diagnosis and treatment of oral and surrounding organs diseases, to correct bad oral habits, which can effectively prevent and block the occurrence of dental malformations. In recent years, our department treated a total of 126 cases of tooth deformity patients, of which 46 cases of tooth molar periodontitis (malformation), accounting for 36.5%, are analyzed as follows. Materials and methods 1. Clinical data: from 1992 to 1998, 46 cases of orthodontic patients were diagnosed in our hospital. 21 males and 25 females. The oldest is 11 years old, the youngest is 5 years old and the average is 8.5 years old. 19 cases caused by lip habit and mouth breathing, 8 cases caused by bad tongue habit, 10 cases with abnormal dental replacement and 9 cases caused by multiple teeth. The etiology and abnormal classification. (1) Anti (occlusal): 10 cases, bite lip habit caused by 8 cases; family