摘要
目的比较正畸托槽脱落后用喷砂法和磨除法两种底板处理方法对托槽再脱落率的影响。方法选择正畸固定矫治复诊病例中托槽脱落的双尖牙牙位120个,通过随机排列表法将喷砂法和磨除法两种底板处理方法分别用于托槽底板处理,比较其在正畸复诊治疗期间托槽再脱落率的情况。结果使用喷砂法处理的正畸托槽在治疗期间的再脱落率与使用磨除法处理的托槽再脱落率的差别经χ2检验无统计学意义。结论使用喷砂法和磨除法处理托槽底板的黏接效果基本相同,但由于磨除法难以保证底板的原始厚度,在正畸临床中应尽量使用喷砂法处理脱落托槽的底板。
Objective To compare the expulsion rates of orthodontic brackets between two kinds of bottom treatment methodssandblasting and grinding.Methods 120 cases with orthodontic brackets on bicuspid teeth in orthodontic treatment were selected.Through a random arrangement table method,the expulsion rates were compared between two kinds of treatment methods-sandblasting and grinding.Results There was no statistics difference between the expulsion rates of two kinds of bottom treatment methods-sandblasting and grinding.Conclusion Two bottom treatments have the same bonding effects.But it is difficult to maintain the original thickness of the brackets bottom for grinding method,sandblasting method is recommended to treat the orthodontic brackets.
出处
《临床医学工程》
2011年第8期1307-1308,共2页
Clinical Medicine & Engineering
关键词
喷砂法
磨除法
再脱落率
Sandblasting method
Grinding method
Expulsion rates
