不同年龄组上颌埋伏阻生尖牙正畸牵引的疗效比较  

Orthodontic traction of impacted maxillary canine:a comparison of different ages

作　　者：张君[1] 张文娟[1] 王旭霞[1] 徐建光[1] 黄艳[1] 

机构地区：[1]山东大学口腔医学院口腔正畸科,山东济南250012

出　　处：《上海口腔医学》2006年第2期130-132,共3页Shanghai Journal of Stomatology

摘　　要：目的:比较成人与青少年上颌埋伏阻生尖牙患者,采用正畸牵引治疗的成功率及其治疗所需时间的差异。方法:选择17例成人和17例青少年患者各21颗上颌埋伏阻生尖牙,2组上颌埋伏阻生尖牙在三维CT片上的位置、三维方向和埋伏阻生程度均相似。对2组正畸牵引治疗的成功率及其治疗所需时间进行比较,分别采用χ2检验和配对t检验进行统计学处理。结果:成人组正畸牵引治疗的成功率为85.71%,青少年组为100%,两者存在显著的差异(P<0.01)。正畸牵引治疗所需时间,成人组长于青少年组,有显著差异(P<0.001)。结论:正畸加开窗牵引上颌埋伏阻生尖牙的成功率,成人组显著低于青少年组,且正畸牵引治疗所需时间也显著长于青少年组。PURPOSE： To evaluate the success rate and the length of orthodontic treatment of impacted maxillary canines in adult and adolescent patients. METHODS： 17 adults who had been treated for a total of 21 impacted maxillary canines,was compared with a younger control group. The control group were chosen for a similar degree of impaction by carefully matching the positions of the impacted canines in 3 dimension. SPSS11.0 software package was used for Chi-square and paired t test. RESULTS： The success rate among the adults was 85.71% compared with 100% among the control group. There was significant difference between the two groups （P〈0.01）.The adults showed significant increase in the duration of treating the impacted canines （P〈0.001）. CONCLUSION： The success rate for orthodontic resolution of an impacted canine in an adult is significantly lower than in a younger patient and the duration of treatment in adults is expected to take considerably longer.

关 键 词：上颌埋伏阻生尖牙 成人 青少年 正畸牵引 

分 类 号：R783.5[医药卫生—口腔医学]