Efficacy of whitening oral rinses and dentifrices on color stability of bleached teeth

Abstract

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. Materials and methods: Specimens obtained from bovine incisors were bleached with 16% CP for 14 days. 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). Color measurements were conducted using a spectrophotometer. The data were assessed by analysis of variance for repeated measures and Tukey’s multiple comparison test (p < 0.05). Results: Immersion in coffee solution after bleaching caused perceptible staining on tooth specimens (ΔE > 3.46). The whitening effect of CWR on teeth stained after bleaching was significantly greater than that in the other groups (p < 0.001). Tooth whitening (ΔE) in each group showed no significant difference from 6 to 12 weeks (p > 0.05). The combination of mouthrinse and toothpaste did not increase the degree of tooth whitening. Conclusion: Whitening mouthrinse and toothpaste had similar effects on the control group in terms of whitening of teeth stained after bleaching. Nevertheless, Crest 3D White mouthrinse produced the greatest recovery whitening effect among all the products tested.

Charcoal-based mouthwashes: a literature review

“…Another particular concern with the inclusion of charcoal in oral hygiene products is its hardness and potential damage to the aprismatic enamel (harder, less permeable and more stain-resistant outer mineralised layer) 43 and subsurface enamel, increasing the risks for surface roughness, caries susceptibility, tooth sensitivity and, ironically, could lead to 30% (11/36) of the charcoal mouthwashes contained so-called 'inactive' ingredients that have been classified as allergenic or potentially contain allergenic contaminants, 51 such as sodium benzoate, saccharin, polyethylene castor oil, poloxamer, sesame oil, benzyl alcohol, polyethylene glycol, or vanilla. Five of these mouthwashes included two of these aforementioned allergens and one brand contained three allergens.…”

Clareamento Dental, Protocolo de aplicação em dentes vitais: Uma Revisão da Literatura / Tooth Whitening, Vital Teeth Application Protocol: A Literature Review

“…O processo de clareamento consiste na aplicação de um gel clareador, à base de peróxido de carbamida ou peróxido de hidrogênio, sobre os dentes a serem branqueados (CANEPPELE et al, 2015;KARADAS;HATIPOGLU, 2015). Ambos os métodos devem ser indicados e supervisionados pelo cirurgião-dentista, sempre impondo limites ao paciente e…”

Whitening Oral Rinses

“…Only a few studies have discussed the effectiveness of these whitening agents after bleaching treatment. A study by Muhammet Karadas [1] was aimed to evaluate the effectiveness of whitening toothpaste and mouthrinses on the color stability of bleached teeth. Specimens were obtained from bovine incisors were bleached with 16% Carbamide peroxide for 14 days.…”

“…Nevertheless, Crest 3D White mouthrinse produced the greatest recovery whitening effect among all the products tested. Further prospective researches are required to prove the safety and longevity of these products [1].…”