Özet:

Objective: The aim of this study is to compare the bleaching efficiency of three different bleaching systems on extracted teeth.Material and Methods: In this study, 21 extracted human upper incisors were used. Samples were divided into three groups according to the bleaching method to be applied: Office Bleaching Office Philips Zoom White Speed, containing 25% hydrogen peroxide, Philips Oral Healthcare, Los Angeles, CA, USA n=7 ; Home Bleaching Home Opalescence PF, Ultradent Products, Inc., containing 16% carbamide peroxide n=7 ; and Over The Counter OTC White beauty & health care GmbH, Germany n=7 . Color measurements were performed before starting bleaching, by using the Vita Easy shade Spectrophotometer VITA Zahnfabrik H. Rauter GmbH & Co. KG, BadSäckingen, Germany . Bleaching was performed with various protocols according to the manufacturerʼs instructions. Color measurements were repeated 24 hours after the end of all bleaching procedures, by using the spectrophotometer. Data were analyzed statistically with the ANOVA test and Tukey HSD test p3.3 . No statistically significant difference was observed between the office bleaching system and the over the counter bleaching product p>0.05 .Conclusion: It was concluded that the home bleaching system has superior bleaching efficiency compared to the office bleaching system and the over the counter bleaching products

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