摘要
目的易位牙是临床上一种特殊类型的牙齿异位萌出。本研究结合临床系统讨论上颌易位牙在临床上的处理方法。方法通过回顾性研究，对临床已完成的22位患者25例上颌易位牙的非拔牙病例做矫治结果的临床分析。这些易位牙病例根据其临床条件分为完全性易位组及不完全性易位组，其中完全性易位组18例，不完全性易位组7例。完全性易位组均保留易位牙的异位状态进行排列，而不完全性易位组则采取正常排列。临床检查评价牙齿排列及牙龈软组织附着状况，影像学检查评价牙根状况。结果通过治疗前后评价，25例病例均建立稳定的黯关系。完全性易位组矫治后易位牙的软组织附着情况良好，牙齿的排列骀面观不理想；不完全性易位组矫治疗程较长，矫治后牙齿的排列理想，但个别病例牙齿的软组织附着不理想。影像学检查显示25例病例治疗后牙根均无吸收，根周膜正常。结论易位牙的正畸治疗应当制订个体化的治疗方案，充分考虑牙根的位置，邻牙的风险，牙槽骨量是否充足，矫治时间，最终的咬合与美观的需求，是否修复处理等因素。
Objective To evaluate the orthodontic treatment of patients with maxillary tooth transpositions. Methods A retrospective study was done to analyze the results of 25 maxillary tooth transposition cases which were divided into two groups, 18 cases of complete transposition and ？ cases of incomplete transposition. Two different treatment protocols were employed. Transpored teeth were aligned in the transposed position in complete transposition group while they were moved to the normal position in incomplete transposition group. Results Significant differences were found between the two groups in attached gingival condition, tooth alignment, and treatment time. No root resorption or periodontal detriment were observed in all 25 cases post-treatment radiographic examinations. Conclusions Individualized treatment plans should be made in patients with tooth transposition.
出处
《中华口腔正畸学杂志》
2013年第1期21-25,共5页
Chinese Journal of Orthodontics
关键词
上颌易位牙
完全性易位
不完全性易位
Maxillary tooth transpositions
Complete transpositions
Incomplete transpositions
