Karadas Muhammet, Duymus Zeynep Yesil
Department of Restorative and Prosthodontics Dentistry, Recep Tayyip Erdoğan University, Rize, TR.
Braz Dent J. 2015 Jul-Aug;26(4):373-7. doi: 10.1590/0103-64402013x0111.
This in vitro study evaluated the whitening effect of four different over-the-counter products compared with a 10% carbamide peroxide (CP) bleaching gel. Specimens obtained from bovine incisors were stained in a tea solution and randomly divided into six groups according to the product used (n=10): CT: conventional toothpaste (negative control); CWT: Crest 3D White toothpaste; CWR: Crest 3D White mouth rinse; CWS: Crest 3D White strips; DW: Dazzling White (paint-on gel); and OP: Opalescence PF 10% CP (at-home bleaching gel, positive control). Over-the-counter products and 10% CP were used according to the manufacturer's recommendations. Color measurements were performed according to the CIELab system using spectrophotometer after staining, and after 4 and 8 weeks of the treatment procedure. The ∆E, ∆L, ∆a, and ∆b values were calculated. The data obtained were analyzed by repeated-measures ANOVA. Tukey's test for multiple comparisons was applied (p<0.05). All groups, except CWT, were effective in tooth whitening in comparison with conventional toothpaste. There was no significant difference in tooth whitening between CWT and CT (p=0.93). CWS, DW and OP groups presented significantly higher color changes than the CWR group. DW and CWS showed similar tooth whitening to OP.
这项体外研究评估了四种不同非处方产品与10%过氧化脲（CP）漂白凝胶相比的美白效果。从牛切牙获取的样本在茶溶液中染色，并根据所使用的产品随机分为六组（n = 10）：CT：传统牙膏（阴性对照）；CWT：佳洁士3D美白牙膏；CWR：佳洁士3D美白漱口水；CWS：佳洁士3D美白牙贴；DW：炫白（涂抹凝胶）；OP：欧帕丽白PF 10% CP（家用漂白凝胶，阳性对照）。非处方产品和10% CP按照制造商的建议使用。在染色后以及治疗过程的4周和8周后，使用分光光度计根据CIELab系统进行颜色测量。计算∆E、∆L、∆a和∆b值。对获得的数据进行重复测量方差分析。应用Tukey多重比较检验（p<0.05）。与传统牙膏相比，除CWT外的所有组在牙齿美白方面均有效。CWT和CT之间在牙齿美白方面无显著差异（p = 0.93）。CWS、DW和OP组的颜色变化显著高于CWR组。DW和CWS显示出与OP相似的牙齿美白效果。
