Over‐the‐counter bleaching agents can help with tooth whitening maintenance

Abstract

Objective This study evaluated the influence of over‐the‐counter agents on the maintenance of color and microhardness of the enamel after home bleaching protocol. Materials and methods Specimens of bovine teeth (6 × 6 × 2 mm) were prepared, and color (Easyshade, VITA) and microhardness (HMV‐2, Shimadzu) readings were performed. All the specimens were bleached using 22% carbamide peroxide (22%CP), except for the control group, and then separated into seven groups (n = 10) according to the interaction of toothpaste (whitening, conventional, and whitening with peroxide) and mouth rinse (whitening and conventional). The study simulated 1 year of toothbrushing (Pepsodent, MAVTEC) and mouth rinse by immersion. After that, final color and microhardness measurements were performed. Data were analyzed by one‐way ANOVA, Tukey's test (P < .05). Results The group submitted to 22%CP + whitening toothpaste + whitening mouth rinse showed higher color maintenance (P < .05) than the control group. The perception of whitening of teeth (ΔWID) was higher than the color change (ΔE00). There was a decrease in microhardness after treatment with 22%CP + conventional toothpaste + whitening mouth rinse. Conclusions Over‐the‐counter products can help with the maintenance of tooth whitening after bleaching with carbamide peroxide; however, special attention should be given since the association of products can also reduce the microhardness of the dental enamel. Clinical significance The association between whitening toothpastes and mouth rinses might be beneficial for maintaining color during 1 year after bleaching treatment.

Evaluation of Coconut Oil Pulling vs. Whitening Mouthwash as Home Teeth Whitening Methods

“…Moreover, ΔE1 and ΔE2 mean values of Coconut Oil Swish (study group) recorded 1.24 and 2.23 respectively; which are not perceptible clinically as the difference is clinically perceptible only when ΔE values are over 3.46 units (30) . This result is consistent with a study of Karadas & Hatipoglu, 2015 (9) and Olivia, 2020 (31) , found that whiteness of teeth treated with different hydrogen peroxide and carbamide peroxide containing mouthwashes increased over time and that it was significantly higher than the whiteness of teeth that received no treatment. Moreover, Crest 3D White mouth-rinse recorded the highest recovery whitening efficacy between a group of whitening toothpastes and mouth-rinse products, this study was done on bleached teeth stained in coffee solution (32) .…”

Whitening effect of 35% hydrogen peroxide in simulation of tooth with orthodontic bracket

“…The search of clearer teeth has been constant, as the beauty and harmony of the smile is often linked with the color of the teeth. 1 Thus, tooth whitening has become the most popular esthetic treatment in dentistry due to being a conservative approach [2][3][4] and the color of teeth has been one of the most determinant factors for patients' satisfaction and self-esteem. 5 Tooth whitening can be performed by different techniques (inoffice and/or at home) and regardless of the whitening technique used, hydrogen peroxide is the agent responsible for the whitening effect.…”

Effect of whitening mouth rinses on the chemical and physical properties of a nanofilled composite

“…Mouth rinses are adjunct over-the-counter substances for mouth cleansing. Whitening mouth rinses supposedly present a tooth whitening effect, mainly produced by substances such as hydrogen peroxide 5,21 . Considering the acquisition of mouth rinses does not require a professional prescription, anybody can use them, including individuals with esthetic dental restorations.…”