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目的:比较树脂类正畸粘接剂(3M)和树脂改良型玻璃离子粘接剂(GC)粘接托槽的脱落率及牙釉质的脱矿率。方法:选取正畸治疗病例60例,采用自身对照方法在口内相对象限随机使用3M粘接剂和GC粘接剂粘接托槽,记录托槽的第一次脱落情况及治疗结束时牙釉质的脱矿情况。结果:3M粘接剂组托槽的脱落率为9.67%,GC粘接剂组托槽的脱落率为11.83%,两组之间无显著性差异(P>0.05);治疗结束时,3M粘接剂组牙釉质的脱矿率为21.5%,GC粘接剂组牙釉质的脱矿率为18.0%,两组之间存在统计学差异(P<0.05)。结论:树脂改良型玻璃离子粘接剂与传统的树脂粘接剂都能够满足临床治疗需要,但是树脂改良型玻璃离子粘接剂可以免除酸蚀,且能释放氟离子,降低釉质脱矿的发生率。
OBJECTIVE: To compare the exfoliation rate of dental brackets and the demineralization rate of enamel between resin-based orthodontic adhesive (3M) and resin-modified glass ionomer adhesive (GC). Methods: Sixty cases of orthodontic treatment were selected. The self-control method was used to bond the brackets with 3M adhesives and GC adhesives randomly in the opposite quadrant of the mouth. The first detachment of the brackets and the enamel of the enamel Demineralization. Results: The drop rate of brackets in 3M adhesive group was 9.67%, while that of GC adhesive group was 11.83%. There was no significant difference between the two groups (P> 0.05). At the end of treatment, 3M adhesive The demineralization rate of enamel was 21.5% in the adhesive group and 18.0% in the GC adhesive group. There was a significant difference between the two groups (P <0.05). CONCLUSION: Both resin-modified glass ionomer adhesives and traditional resin adhesives can meet the needs of clinical treatment. However, resin-modified glass ionomer adhesives can eliminate acid corrosion, release fluoride ions and reduce the occurrence of enamel demineralization rate.