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目的比较3种脱敏剂:75%氟化钠、Gluma、极固宁用于预防超声波洁治后牙本质敏感治疗的疗效。方法临床随机选择超声波龈上洁治术的患者180例,分别用A(75%氟化钠甘油)、B(Gluma脱敏剂)、C(极固宁脱敏剂)、D(对照组,生理盐水)进行治疗,观察洁治前、脱敏治疗15 min、3个月、6个月后的疗效。结果 A、B、C组疗效均明显优于D组,差异有统计学意义(P<0.05);其中B、C组较A组疗效更加明显(P<0.05);而B、C组间疗效差异无统计学意义。结论 3种脱敏剂均有助于减少牙本质敏感引起的不适;Gluma和极固宁脱敏剂效果相近,但优于氟化钠和生理盐水。
Objective To compare the efficacy of three kinds of desensitizers: 75% sodium fluoride, Gluma and Guzhengning for preventing dentin hypersensitivity after ultrasonic cleaning. Methods One hundred and eighty patients were randomized to receive supragingival gingival scaling (A) (75% sodium fluoride glycerol), B (Gluma desensitizer), C (Dangningning desensitizer), D Saline) were treated before treatment, desensitization treatment 15 min, 3 months, 6 months after the curative effect. Results The curative effects of group A, B and C were significantly better than that of group D (P <0.05). The efficacy of group B and C was more obvious than that of group A (P <0.05) The difference was not statistically significant. CONCLUSION All three desensitizers are helpful to reduce the discomfort caused by dentin sensitization. Gluma is very similar to DZN, but better than sodium fluoride and normal saline.