评价Beyond冷光美白术漂白着色牙-黄牙(含先天黄牙、增龄性变色牙)和四环素牙的疗效及安全性。方法 用Beyond冷光美白仪及配套的冷光美白剂对31例(496颗)黄牙、34例(544颗)四环素牙进行漂白。以第二双尖牙为空白对照。用VITA比色板作脱色前后比较,分析脱色效果;观察术中、术后患者敏感情况,术中牙龈损伤情况。结果 黄牙组平均提高6. 32个色阶,有效率100. 0%。四环素牙平均提高5. 37个色阶,有效率98. 5%。术中约84. 6%的患者有程度不等的牙齿敏感症状,术后约89. 2%的患者有不同程度牙齿敏感症状,约13. 8%的患者出现牙髓刺激症状, 24~72 h可自动消除。约10. 5%的患牙术中出现牙龈灼伤。结论 Beyond冷光美白术对黄牙脱色疗效显著;对轻、中度四环素牙脱色明显,对重度四环素牙疗效欠佳。该产品对牙髓有一定刺激性,为短时性、一过性。
中图法分类号:R78 文献标识码:A
Efficacy and safety of teeth bleaching by Beyond cold lightwhitening kitDENGMan-jing1,AN Jian-ping1,PAN Li-feng1,LIU Lu-chuan1,LIU Xin2(1Department ofStomatology, InstituteofurgeryResearch, DapingHospital,Third Military MedicalUniversity,Chongqing 00042;2 Departmentof General Emergency, Stomatological HospitalAffiliated to hongqing Medical University, Chongqing 400015,China)
Abstract:Objective To evaluate the efficacy and safety of teeth bleaching byBeyond cold lightwhitening ki.tMethods Sixty-five subjects including 31 with yellow teeth(496 teeth,natural and acquired yellowstained teeth)and 34 with tetracycline stained teeth(544 teeth)were enrolled into the study. Efficacywas assessed byVITA shade scores and safety evaluationwasperformed by examining the examination ofdentin hypersensitivity,dental pulp stimulation and gingival irritation.Results Beyond cold lightwhiting kitwas signifi-cantly effective in lighting tooth shade
