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目的评价Opalescence PF家庭美白系统漂白牙齿的临床疗效。方法随机选择2007年8月至2010年12月在暨南大学附属惠州口腔医院治疗的着色牙患者60例(四环素牙组和氟斑牙组各30例),用含15%过氧化脲的Opalescence PF家庭美白套装进行牙齿漂白,用美能达接触式色彩色差计分析并比较治疗前后牙面色度的变化,记录受试者术中牙齿酸痛的发生率,并复查评价疗效稳定性。结果用含15%过氧化脲的Opalescence PF家庭美白系统漂白后,四环素牙组与氟斑牙组牙面平均L*,a*,b*值与治疗前比较差异均有统计学意义(均P<0.05),平均色差分别为3.89和4.21;术中2组均有部分患者出现不同程度牙齿酸痛症状,但停药后4～5h均能缓解;治疗后6个月,氟斑牙漂白有效率仍达90%(27/30),四环素牙的漂白有效率为86.7%(26/30),与治疗结束时(93.3%和96.7%)比较,差异均无统计学意义(均P>0.05)。结论 Opalescence PF家庭美白系统治疗着色牙效果显著并具有一定稳定性。
Objective To evaluate the clinical efficacy of Opalescence PF whitening system bleaching teeth. Methods Totally 60 patients with colored teeth treated in Huizhou Stomatological Hospital Affiliated to Jinan University from August 2007 to December 2010 were randomly selected (tetracycline group and dental fluorosis group, 30 cases). Opalescence PF The family whitening kit was used to bleach the teeth. Minolta’s contact colorimeter was used to analyze and compare the change of tooth surface color before and after treatment. The incidence of dental pain during the operation was recorded and the stability of the treatment was evaluated. Results After bleaching with Opalescence PF whitening system containing 15% urea peroxide, the average L *, a *, b * values of tetracycline tooth group and dental fluorosis group were significantly different from those before treatment (P <0.05). The average color difference was 3.89 and 4.21 respectively. Some patients in the two groups had different degree of dental ache symptom in both groups, but relieved 4 ~ 5h after stopping the treatment. At 6 months after treatment, the dental fluorosis bleaching efficiency The results showed that the tetracycline tooth bleaching efficiency was still 86.7% (26/30), no significant difference (93.3% vs 96.7%) at the end of treatment (all P> 0.05) . Conclusion Opalescence PF whitening system has significant and certain stability in treating colored teeth.