氟保护漆治疗基牙预备后牙本质过敏症124例疗效观察

目的    评价氟保护漆在治疗金属烤瓷全冠（PFM）修复中活髓基牙预备后牙本质过敏症的疗效。方法    选择2009年5月至2010年11月来德阳市口腔医院口腔修复科就诊的拟行PFM修复的患者124例（活髓基牙226颗），按就诊顺序随机分为两组：试验组（65例，基牙116颗）采用氟保护漆脱敏；对照组（59例，基牙110颗）采用Gluma脱敏剂脱敏。分别于戴用PFM后即刻及3个月检测牙本质敏感状况。结果    戴用PFM后即刻，试验组有效率为84.48%，对照组有效率为80.91%，二者差异无统计学意义（P > 0.05）；3个月时，试验组有效率为93.97%，明显优于对照组（84.55%）（P＜0.05）。结论    氟保护漆可有效缓解PFM修复中活髓基牙预备后的敏感症状，值得临床广泛应用。

Evaluation of clinical effect of Fluor Protecctor on dentin hypersensitivity for full crown restoration

Objective    To evaluate the effect of Fluor Protector on vital teeth postoperative hypersensitivity in PFM restoration. Methods    A total of 226 teeth from 124 patients were divided into two groups randomly. The test group was treated with Fluor Protector and the control group with Gluma desensitizer. The effect was observed 1 week and 3 months after restoration. Results    After 1 week，the effect rate was 84.48% for the test group，and 80.91% for the control group. There was not significant difference between two groups. After 3 months，the effect rate was 93.97% for the test group，and 84.55% for the control group， which showed significant difference between two groups. Conclusion    Dentin hypersensitivity can be effectively released by Fluor Protectar after PFM preparation， which deserves application in clinic.