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目的比较和观察极固宁(Green OrTM)和Er:YAG激光法对支托窝脱敏的疗效。方法选取2013-01至2013-12初次选用可摘局部义齿修复牙列缺损的90例患者90颗磨牙,男43例,女47例,46~60岁,随机分为极固宁组30颗,Er:YAG激光组30颗,对照组30颗。采用视觉模拟评分法(visual analog scale,VAS)对3组患者均在合支托预备后即刻脱敏治疗之后和脱敏治疗4个月后进行牙本质敏感性临床评估,测定VAS值。结果即刻脱敏结束后,极固宁组(83.3%)和Er:YAG激光组(86.7%)的有效率均高于对照组(23.3%,P<0.05),极固宁组和Er:YAG激光组的有效率差异无统计学意义。脱敏治疗4个月后复查,Er:YAG激光组的有效率(79.3%)高于极固宁组(31.0%)和对照组(21.4%,P<0.05),极固宁组和对照组的有效率差异无统计学意义。结论在牙本质过敏症的短期治疗中极固宁效果较显著,长期疗效中Er:YAG激光作用更加明显。
Objective To compare and observe the curative effect of detoxification of tilapia with Green OrTM and Er: YAG laser. Methods Ninety molars, 43 males and 47 females, aged from 46 to 60 years, were selected from 90 patients with dentition defect who were selected for removable denture for the first time from 2013-01 to 2013-12. They were randomly divided into 30 groups: Er: YAG laser group 30, control group 30. Visual analog scale (VAS) was used to evaluate the dentine sensitivity in all three groups after desensitization treatment and 4 months after desensitization treatment. VAS values were measured. Results After immediate desensitization, the effective rate of EZG (83.3%) and Er: YAG laser (86.7%) was higher than that of control group (23.3%, P <0.05) There was no significant difference in the efficiency of the laser group. After 4 months of desensitization treatment, the response rate of Er: YAG laser group (79.3%) was higher than that of the control group (31.4%) and the control group (21.4%, P <0.05) The effective rate difference was not statistically significant. Conclusion In the short-term treatment of dentin hypersensitivity, the effect of PZT is more remarkable, and the effect of Er: YAG laser in the long-term effect is more obvious.