摘要
目的：调查苏州地区12～14岁儿童正畸固定矫治完成后釉质脱矿情况。方法：分层抽样调查12～14岁正畸患者120例共2862牙，于固定矫治结束后进行口腔检查，记录脱矿发病率、好发牙位以及脱矿牙数（脱矿率）。同时以非正畸治疗组12—14岁口腔健康儿童120名共2876个牙作为对照组进行临床观察。结果：①发病率和脱矿率治疗组分别为39．1％、18．3％，对照组分别为4．1％、5．3％，两组相比差异显著（P〈0．05）；治疗组与非治疗组中，男、女脱矿发病率差异无统计学意义（P〉0．05）；②脱矿率上颌侧切牙（34．1％）、上颌中切牙（33．3％）、上颌尖牙（27．5％）、下颌前磨牙（17．4％）、下颌侧切牙（7．5％）、下颌中切牙（5．8％）；③脱矿部位集中在托槽龈方釉质面上以及牙颈部。结论：正畸固定矫治后釉质脱矿发生率较高，在临床工作中要加强121腔卫生宣教及规范临床操作。
AIM： To investigate enamel demineralization following orthodontic treatment with fixed appli- ance. METHODS： 120 patients aged 12 ~ 14 years with 2862 teeth after orthodontic treatment with fixed applince and 120 age and gender matched controls with 2876 teeth without orthodontic treatment were included. RESULTS ： The in- cidence of demineralization of the subjects, after the treatment and the controls was 18.3% and 5.3% respectively （ P 〈 0.05 ）. There was no difference between sexes in both groups （P 〉 0.05 ） . The most susceptible teeth to deminer- alization were maxillary lateral incisor（34.1% ）, maxillary incisor（ 33.3% ） and canine（27.5% ）, mandible premolar （17.4%）, mandible lateral incisors （7.5%） and mandible incisors （5.8 % ）. The most susceptible area was dental cervix and that surrounding the bracket. CONCLUSION： There is a significant increase in enamel demineralization after orthodontictreatment with fixed appliance.
出处
《牙体牙髓牙周病学杂志》
CAS
2016年第1期39-41,共3页
Chinese Journal of Conservative Dentistry
关键词
釉质脱矿
正畸固定矫治
托槽
enamel demineralization
fixed orthodontic treatment
bracket
