The home application procedure involves applying oxygenating gels, usually for a period ranging from 2 to 6 weeks, and usually includes up to 15% hydrogen peroxide (HP) or 22% carbamide peroxide (CP) as active agents. Fundamental vital tooth bleaching techniques can be generally classified as at-home (dentist-supervised night-guard bleaching), in-office or power bleaching (professionally administered), and over-the-counter (OTC) or mass market products. Tooth bleaching, a conservative and effective method for the esthetic treatment of discolored teeth, has become an integral component of aesthetic dentistry. Nevertheless, Crest 3D White mouthrinse produced the greatest recovery whitening effect among all the products tested. The combination of mouthrinse and toothpaste did not increase the degree of tooth whitening.Ĭonclusion: Whitening mouthrinse and toothpaste had similar effects on the control group in terms of whitening of teeth stained after bleaching. The whitening effect of CWR on teeth stained after bleaching was significantly greater than that in the other groups ( p 0.05). The data were assessed by analysis of variance for repeated measures and Tukey’s multiple comparison test ( p 3.46). Color measurements were conducted using a spectrophotometer. After bleaching, the specimens were stained in coffee solution for 24 h and randomly divided into eight groups according to the following products ( n = 10): distilled water (control group, DW), Scope White mouthrinse (SW), Crest 3D White mouthrinse (CWR), Crest 3D White toothpaste (CWT), Crest 3D White toothpaste and Crest 3D White mouthrinse (CWT + CWR), Listerine Whitening toothpaste (LWT), Listerine Whitening mouthrinse (LWR), and Listerine Whitening mouthrinse and Listerine Whitening toothpaste (LWR + LWT). Materials and methods: Specimens obtained from bovine incisors were bleached with 16% CP for 14 days. Objective: This study aimed to evaluate the effect of whitening toothpastes and mouthrinses on the color stability of teeth bleached with 16% carbamide peroxide (CP) after immersion in coffee solution.
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