自酸蚀封闭剂与玻璃离子联合用于托槽粘结的临床观察

Clinical evaluation of a self-etching primer in combination with a resin-modified glass ionomer for bracket bonding

目的:评价自酸蚀粘结剂与树脂加强型玻璃离子联合用于正畸托槽粘结的临床使用效果。方法:随机选择50名患者,采用自身对照的方法进行为期12个月的临床观察。385个托槽用自酸蚀封闭剂(3M ESEP)和光固化树脂加强型玻璃离子水门汀(FUJI ORTHO LC)粘结,390个托槽用京津釉质粘结剂粘结。观察托槽脱落的时间和脱落后粘结剂在牙面上的残留量,计算托槽脱落率和粘结材料残留指数。结果:光固化树脂加强型玻璃离子水门汀和自酸蚀封闭剂粘结的托槽脱落率为10.1%;京津釉质粘结剂粘结的托槽脱落率为9.0%,两者差异没有统计学意义(P>0.05)。两种材料粘结的托槽脱落后,牙釉质上的粘结材料残留指数差异无显著统计学意义(P>0.05)。结论:自酸蚀封闭剂和树脂加强型玻璃离子所构成的粘结技术粘结正畸托槽的粘结强度,可以满足正畸治疗的需要,在临床上有广阔的应用前景。

Objective To evaluate a self-etching primer （SEP） in combination with a resin-modified glass ionomer（FUJI ORTHO LC） for orthodontic bracket bonding, Methods Fifty subjects were selected randomly for this 12-month clinical study by the split-mouth method, Three hundred and eight-five orthodontic brackets were bonded with a SEP in combination with FUJI ORTHO LC, Three hundred and ninty brackets were bonded with JINGJIN composite resin （CR）, The time point of bond failure and the amount of adhesive remnant on the tooth surface were recorded, The bond failure rate and the adhesive remnant index were calculated, Results The bond failure rate of a SEP in combination with FUJI ORTHO LC was 10,1% and the failure rate of CR was 9.0%, There was no significant statistical difference between the two bond failure rates （P〉0.05）. There was no significant statistical difference between the adhesive remnant indexes of the two adhesive materials （P〉0.05）, Conclusion The use of a SEP in combination with FUJI ORTHO LC can provide adequate bond strength for bracket bonding, It already meets the clinical need, which property will make it more prevailing and be a ideal choice when bonding in polluted enviroment.