新型自黏结树脂水门汀与传统聚羧酸锌水门汀临床黏结力的比较

Comparison of clinical bonding power between new self-adhesive resin cement and traditional zinc polycarbonoxylate cement

目的：观察新型自黏结树脂水门汀的黏结力，探讨其临床适用性。方法选择2010年5月~2011年10月在本院就诊的58例进行根管治疗的患者，随机分为试验组30例和对照组28例，试验组采用新型自黏结树脂水门汀黏结修复处理，对照组采用传统聚羧酸锌水门汀黏结修复处理，观察两组的患牙修复成功率并分别测试和记录1、3、6、12、24个月的黏结强度。结果试验组患牙修复成功率为97.1%（34/35），对照组患牙修复成功率为94.1%（32/34），两组比较差异无统计学意义（χ2=0.3795，P=0.5379）。1个月后，两组黏结强度比较差异无统计学意义（P〉0.05）；3、6、12、24个月后，试验组的黏结强度明显高于对照组，差异有统计学意义（P〈0.05）。结论相对于传统聚羧酸锌水门汀，新型自黏结树脂水门汀虽未明显提高患牙修复功率，但其黏结强度大，可以更好地增强黏结效果，值得临床推广应用。

Objective To observe the bonding power of new self-adhesive resin cement and discuss its clinical appli-cability. Methods Fifty-eight patients visited our hospital for root canal therapy from May 2010 to October 2011 were selected and divided into experimental group （n=30）and control group （n=28）.In the experimental group,new self-adhe-sive resin cement for repair was applied,while in the control group,traditional zinc polycarbonoxylate cement was adopt-ed.The success rate of repair in the affected teeth was observed and the adhesive strength was measured and recorded after 1,3,6,12,24-month. Results The success rate of repair of the affected teeth in the experimental group was 97.1%（34/35）,while in the control group,the rate was 94.1%（32/34）,with no statistical difference （χ2=0.3795,P=0.5379）.Adhe-sive strength in both groups after one month was compared,with no statistical difference （P〉0.05）.However,adhesive strength in the experimental group after 3,6,12,24 months was more powerful than that in the control group respectively, with statistical difference （P〈0.05）. Conclusion In comparison with traditional zinc polycarbonoxylate cement,new self-adhesive resin cement doesn’t improve the success rate of repair,but increases the adhesive strength,which can better strengthen the adhesive effect and is worthy of promotion and application in clinic.