重度氟斑牙直接贴面粘接托槽降低托槽脱落率的临床研究.pdfVIP

重度氟斑牙直接贴面粘接托槽降低托槽脱落率的临床研究 徐璐璐，段银钟，陈莉莉，王海雪，毕惠贤 (第四军医大学口腔医学院正畸科，陕西 西安 710032) 关键词： 氟斑牙； 托槽； 粘接； 托槽脱落率； 牙贴面 中图号：R780.2 文献标识码：A 摘 要： 目的 探讨正畸临床重度氟斑牙采用光固化复合树脂直接贴面粘接托槽的有效性， 以降低临床托槽的脱落率。方法 选择 17 例（共 324 颗）需用固定矫治器进行正畸治疗的重 度氟斑牙患者，按其氟斑牙釉质表面处理方法的不同临床上随机分为氟斑牙直接粘接托槽 组、氟斑牙表面磨除粘接托槽组、氟斑牙直接贴面粘接托槽组。每组牙经酸蚀和釉质表面处 理后，每一牙面均粘接方丝弓托槽，观察四周、八周、十二周托槽的脱落率。结果 临床实 验结果显示，氟斑牙直接粘接托槽组、氟斑牙表面磨除粘接托槽组、氟斑牙直接贴面粘接托 槽组四周、八周、十二周总脱落率分别为 73.9%、26.7%、1.7%。经 t 检验，三个粘接组间 托槽的脱落率有明显的差异（P0.01 ）。氟斑牙直接贴面粘接托槽组的疗效最佳，且氟斑牙 直接贴面粘接托槽组效果好于氟斑牙表面磨除粘接托槽组，氟斑牙表面磨除粘接托槽组效果 好于氟斑牙直接粘接托槽组。结论 光固化复合树脂直接贴面粘接托槽可有效降低氟斑牙正 畸托槽的脱落率，是临床重度氟斑牙固定正畸矫治中的一种美观有效的新方法。 Clinical study of reducing losing ratio of brackets bonding to heavy fluorotic teeth XU Lu-Lu, DUAN Yin-Zhong, CHEN Li-Li, WANG Hai-Xue, BI Hui-Xian Department of Orthodontics, College of Stomatology,The Fouth Military Medical University, Xi’an 710032, China Keywords fluorotic teeth; bracket; bonding; losing ratio of bracket; dental veneer Abstract: AIM To investigate the effect of bracket bonding of heavy fluorotic teeth with the light-curing composite to reduce losing ratio of the brackets in orthodontic clinic. METHODS 324 heavy fluorotic teeth in seventeen patients who need fixed appliance for orthodontic treatment were chosen. According to the different treating methods of fluorotic teeth enamel surface , the teeth were divided into three groups randomly: direct bonding to fluorotic teeth surface, bonding to polished fluorotic teeth surface, bonding to veneers of fluorotic teeth. Losing ratio of brackets were observed after four ,eight and twelve weeks.RESULTS Losing ratio of the three groups was 73.9%、26.7%、1.7% after four ,eight and twelve weeks of bonding respectively . There 收稿日期：2004-03-01 ； 修回日期：2004-04-13 作者简介：徐璐璐(1977-),女(汉族),黑龙江省齐齐哈尔市人,医师,硕士生 (导师 段银钟).Tel:029Email:xululu1977@ were significant difference in losing ra