下颌前牙拥挤在保持期后的变化研究进展  

Review about the changes of mandibular crowding during post-retention period

作　　者：余永春[1] 孙洁[1] 赖文莉[1] 

机构地区：[1]四川大学华西口腔医院正畸科,四川成都610041

出　　处：《国际口腔医学杂志》2008年第S1期320-323,共4页International Journal of Stomatology

摘　　要：正畸治疗后的稳定性是每个正畸医生必须关注的问题。下颌前牙拥挤在保持后的复发是不可避免的同时也是最常见的,这些复发可能与不恰当的治疗、误诊有关。笔者在回顾拔牙与不拔牙对下颌前牙拥挤复发的影响时发现,在拔牙和不拔牙患者中,下颌前牙在保持期后都出现了不同程度的拥挤,延长保持时间、扩弓治疗、嵴上纤维环切术、邻面去釉等方法能够增加下颌前牙的稳定性。The post-treatment stability is a problem for all the orthodontists. The relapse of the mandibular anterior teeth is the most common and evitable during the post-retention time, which maybe related to the inappropriate treatment and misdiagnosis. This article reviewed the related factors about the relapse of the mandibular crowding during the post-retention period. The relapse is evitable regardless of the extraction or non-extraction.Prolonging the retention time, expansion treatment, circumferential supra...

关 键 词：下颌 牙拥挤 复发 稳定性 

分 类 号：R783[医药卫生—口腔医学]