CAJ | 학술논문

背景：研究表明，自锁托槽在正畸治疗中有优于传统托槽的特点，但也存在诸多争议。目前，对于自锁托槽的独特作用，探讨者也是各持己见。目的：综述近年来有关自锁托槽与传统托槽对比研究的方向与进展。方法：由第一作者检索2000至2014年 PubMed 数据库、中国知网数据库相关文献。英文检索词为“self-ligating bracket ,conventional orthodontic bracket”，中文检索词为“自锁托槽，传统托槽，正畸治疗”。结果与结论：自锁托槽节省椅旁操作时间已被证实与接受。有关自锁托槽能够降低正畸治疗中摩擦力的观点仍存在很大的争议，目前较明确的观点是，自锁托槽在使用细圆丝时的摩擦力小于传统托槽；对于自锁托槽在关闭间隙与精细调节阶段产生的摩擦力是否明显小于传统托槽还没有被证实，需要更多的临床对比试验。自锁托槽在扩大牙弓、减少支抗丧失与牙根吸收上与传统托槽差异不明显，并且研究多在体外进行，无法精确模拟口腔内的真实情况，尚需开展更多大样本量、统一疗效判断标准的试验，对自锁托槽的治疗效果进一步作出的客观评价。
배경：연구표명，자쇄탁조재정기치료중유우우전통탁조적특점，단야존재제다쟁의。목전，대우자쇄탁조적독특작용，탐토자야시각지기견。목적：종술근년래유관자쇄탁조여전통탁조대비연구적방향여진전。방법：유제일작자검색2000지2014년 PubMed 수거고、중국지망수거고상관문헌。영문검색사위“self-ligating bracket ,conventional orthodontic bracket”，중문검색사위“자쇄탁조，전통탁조，정기치료”。결과여결론：자쇄탁조절성의방조작시간이피증실여접수。유관자쇄탁조능구강저정기치료중마찰력적관점잉존재흔대적쟁의，목전교명학적관점시，자쇄탁조재사용세원사시적마찰력소우전통탁조；대우자쇄탁조재관폐간극여정세조절계단산생적마찰력시부명현소우전통탁조환몰유피증실，수요경다적림상대비시험。자쇄탁조재확대아궁、감소지항상실여아근흡수상여전통탁조차이불명현，병차연구다재체외진행，무법정학모의구강내적진실정황，상수개전경다대양본량、통일료효판단표준적시험，대자쇄탁조적치료효과진일보작출적객관평개。
BACKGROUND:The self-ligating bracket is superior to the conventional bracket in orthodontic treatment, but there are a lot of controversies. At present, researchers have different views on the function of self-ligating brackets. OBJECTIVE:To summarize the comparative study of self-ligating brackets and conventional brackest with the direction and development in recent years. METHODS:A computer-based search of PubMed (2000-2014) and CNKI (2000-2014) databases was done for relevant articles, using the key words of “self-ligating brackets; conventional orthodontic brackets” in English and Chinese, respectively. RESULTS AND CONCLUSION:Self-locking brackets saves chair side time, which has been confirmed and accepted. There are different views for the issue that self-ligating brackets can reduce friction in orthodontic treatment. It is widely accepted that, the self-ligating brackets using thin round wire had less friction than the conventional brackets; whether the friction of self-ligating brackets in the closed gap and fineness adjustment stages is less than the conventional brackets stil remains unclear, which need further clinical comparative studies. The self-ligating brackets showed no significant difference with the conventional brackets in arch expansion, reducing anchorage loss and root adsorption. The majority of relevant studies is performedin vitro, and cannot exactly simulate the dental conditions. A large-size experiment with the uniform criteria for therapeutic efficacy is needed to objectively evaluate self-ligating brackets.