摘要
目的评价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,24～72h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。
Objective To evaluate the efficacy and safety of teeth bleaching by Beyond cold light whitening kit. Methods Sixty-five subjects including 31 with yellow teeth （496 teeth, natural and acquired yellow stained teeth） and 34 with tetracycline stained teeth （544 teeth） were enrolled into the study. Efficacy was assessed by VITA shade scores and safety evaluation was performed by examining the examination of dentin hypersensitivity, dental pulp stimulation and gingival irritation. Results Beyond cold light whiting kit was significantly effective in lighting tooth shade both in yellow tooth and tetracycline stained tooth. After treatment, the subjects with yellow tooth exhibited an overall mean 6.32-shade improvement from baseline and the effective rate was 100%. The subjects with tetracycline stained tooth exhibited an overall mean 5.37-shade improvement from baseline and the effective rate was 98.5 %. Although high shade improvement was got in heavy tetracycline stained tooth, the real color were not satisfactory to patients and doctors. Tooth sensitivity occurred in 84.6% subjects during treatment and 10.5% were accompanied with eroded gum. After bleaching, about 89.2% subjects complained of tooth sensitivity and about 13.8% patients of dental pulp stimulation. Tooth hypersensitivity persisted about 24 - 72 h, then quitted. Conclusion Beyond cold light whiting kit is effective to yellow teeth, slight and moderate tetracycline stained tooth. The kit has light stimulation to dentin and dental pulp, and tooth hypersensitivity is transient and recoverable.
出处
《第三军医大学学报》
CAS
CSCD
北大核心
2007年第13期1345-1347,共3页
Journal of Third Military Medical University
关键词
着色牙
漂白
冷光美白术
stained tooth
bleaching
cold light whitening kit
