교정치료의 발치 유무에 따른 상·하악 전치부의 치근 흡수 : 청소년을 대상으로 = Root Resorption of Maxillary and Mandibular Anterior with or without Extraction of Orthodontic Treatment in Adolescents

다국어 초록 (Multilingual Abstract)

In order for evaluating tendency of root absorption after fixed orthodontic treatments, a total of 120 malocclusion patients who visited orthodontic clinics in Seoul between 2005 and 2011 were divided into extraction group(n=63) and non-extraction group(n=57). The age of starting orthodontic
treatments is 11.2 in the extraction group, and 12.7 in the non-extraction group meaning a statistically significant difference between the groups(p<0.05). The treatment period of the extraction group was 3.1 years and that of the non-extraction group was 2.8 years meaning no statistically
significant difference between the groups(p>0.05). In both groups, there was no statistically significant difference in terms of sex and root absorption by tooth(p>0.05). The extraction group showed more root absorption than the non-extraction group but there was no statistically significant difference between the groups(p>0.05). However, maxillary lateral incisors of the extraction group showed more root absorption than the non-extraction group.