四种方法去除牙面正畸树脂粘结剂的效果评价  

The Effect of Four Resin-removal Methods on Surface of Enamel

作　　者：舒广[1] 罗旭[1] 许天民[2] 

机构地区：[1]北京大学口腔医院第二门诊部,100101 [2]北京大学口腔医学院.口腔医院正畸科,100101

出　　处：《口腔正畸学》2007年第3期117-120,共4页Chinese Journal of Orthodontics

摘　　要：目的评价四种去除正畸粘结剂及处理釉质表面方法的效果。材料和方法选择正畸拔除的健康前磨牙40个,常规粘结托槽去除托槽后将实验牙随机分为4组,每组10个牙。分别选用粘结剂去除钳,进口碳钨钻,矽粒子及顺序使用上述三种材料在离体牙上进行四种方式的去粘结处理,分别记录操作时间(T)、并在扫描电镜观察下测量粘结剂残留指数(Adhesive Remnant Index,ARI)及釉质表面指数(Enamel Surface Index,ESI)。ARI,ESI进行非参数秩变换分析,操作时间进行单因素方差分析。结果序列组组合方法去除正畸粘结剂彻底,对釉质损害最小,抛光后牙表面接近正常釉质。Objective To determine the effect of four resin-removal methods on surface of enamel. Methods 40 orthodontically extracted healthy premolars were selected. After bonding debonding brackets, the teeth were divided into four groups of with ten teeth in each. group Each group underwent one of four kinds of debonding and polishing technique. The instruments used in debonding methods in cluded adhesive removing plier, tungsten carbide burs ,silicone particles or combine of these material respectively. The time （ T） required for adhesive removal, the Adhesive Remnant Index（ARI ）and Enamel Surface Index（ESI ）after polishing were measured by scanning electron microscopy. The scores of ARI and ESI were analyzed by nonparametric tests. The data of T was analyzed by one way ANOVA. Results Use of Combined instrumeuts has best effect among four methods.

关 键 词：去粘结 碳钨钻 矽粒子 扫描电镜 

分 类 号：R783.5[医药卫生—口腔医学]