Effect of fluoride or chitosan toothpaste and at-home bleaching in enamel roughness, tooth color, and staining susceptibility.

IF 0.9 4区医学 Q3 DENTISTRY, ORAL SURGERY & MEDICINE

American journal of dentistry Pub Date : 2024-04-01

Waldemir F Vieira-Junior, Alexandre M Lucon, Núbia I P Pini, Mari M Sugii, Flávio H B Aguiar, Débora A N L Lima

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引用次数: 0

Abstract

Purpose: To evaluate how fluoride- or chitosan-based toothpaste used during at-home bleaching affects enamel roughness, tooth color, and staining susceptibility.

Methods: Bovine enamel blocks were submitted to a 14-day cycling regime considering a factorial design (bleaching agent x toothpaste, 2 x 3), with n=10: (1) bleaching with 16% carbamide peroxide (CP) or 6% hydrogen peroxide (HP), and (2) daily exposure of a fluoride (1,450 ppm F-NaF) toothpaste (FT), chitosan-based toothpaste (CBT), or distilled water (control). Then, 24 hours after the last day of bleaching procedure the samples were exposed to a coffee solution. Color (ΔEab, ΔE₀₀, L*, a*, b*) and roughness (Ra, µm) analyses were performed to compare the samples initially (baseline), after bleaching, and after coffee staining. The results were evaluated by linear models for repeated measures (L*, a*, b*, and Ra), 2-way ANOVA (ΔEab, ΔE₀₀) and Tukey's test (α= 0.05).

Results: After the at-home bleaching procedure (toothpaste vs. time, P< 0.0001), the toothpaste groups presented a statistically lower Ra than the control (CBT 0.05). After coffee exposure, CBT presented lower ΔEab and ΔE₀₀ values in the HP groups (toothpaste, P< 0.0001), and lower b* and a* values in the CP groups (toothpaste vs. time, P= 0.004).

Clinical significance: Fluoride or chitosan delivered by toothpaste can reduce surface alterations of the enamel during at-home bleaching, without affecting bleaching efficacy.

本刊更多论文

含氟或壳聚糖牙膏和居家漂白对珐琅质粗糙度、牙齿颜色和易着色性的影响。

目的：评估家庭漂白过程中使用的含氟牙膏或壳聚糖牙膏对牙釉质粗糙度、牙齿颜色和着色敏感性的影响：采用因子设计（漂白剂 x 牙膏，2 x 3）对牛珐琅质块进行为期 14 天的循环处理，n=10：(1) 使用 16% 过氧化卡巴酰胺（CP）或 6% 过氧化氢（HP）漂白；(2) 每天接触含氟（1 450 ppm F-NaF）牙膏（FT）、壳聚糖基牙膏（CBT）或蒸馏水（对照）。然后，在漂白过程最后一天的 24 小时后，将样品置于咖啡溶液中。进行颜色（ΔEab、ΔE₀₀、L*、a*、b*）和粗糙度（Ra，µm）分析，以比较最初（基线）、漂白后和咖啡染色后的样品。结果通过重复测量线性模型（L*、a*、b*和Ra）、双方差分析（ΔEab、ΔE₀₀）和Tukey检验（α= 0.05）进行评估：在家漂白后（牙膏与时间对比，P< 0.0001），牙膏组的 Ra 值低于对照组（CBT 0.05）。接触咖啡后，CBT 在 HP 组（牙膏组，P< 0.0001）显示出较低的ΔEab 和 ΔE₀₀ 值，在 CP 组显示出较低的 b* 和 a* 值（牙膏组与时间组对比，P= 0.004）：临床意义：牙膏中的氟化物或壳聚糖可以减少在家漂白过程中珐琅质表面的改变，而不影响漂白效果。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

American journal of dentistry 医学-牙科与口腔外科

CiteScore

2.40

自引率

7.10%

发文量

审稿时长

1 months

期刊介绍： The American Journal of Dentistry, published by Mosher & Linder, Inc., provides peer-reviewed scientific articles with clinical significance for the general dental practitioner.