一种基于活性炭的粉末对牙釉质牙齿美白的效果。

The Effect of a Charcoal-based Powder for Enamel Dental Bleaching.

出版信息

Oper Dent. 2020 Nov 1;45(6):618-623. doi: 10.2341/19-122-L.

DOI:10.2341/19-122-L

PMID:32243248

Abstract

CLINICAL RELEVANCE

Charcoal based-powders are not effective for dental bleaching.

SUMMARY

Charcoal-based dentifrices for dental whitening are a novelty in the market. Manufacturers claim that such charcoal-based products have whitening, remineralization, antimicrobial, and antifungal properties of charcoal in such products. However, there is no substantial scientific evidence for these claims. This laboratory randomized study was designed to evaluate the whitening properties of a charcoal-based toothpowder. A total of 45 bovine dental enamel discs were randomly distributed into three groups (n=15): group 1, mechanical brushing with a 1450-ppm F toothpaste (control group); group 2, mechanical brushing with an activated charcoal-based powder; group 3, bleaching per the standard protocol using 10% carbamide peroxide. The surface roughness and color of each specimen were analyzed at baseline and after 14 days of experiment. The surface of one randomly selected specimen from each group was examined using a scanning electron microscope (SEM). The Kruskal-Wallis test was used to compare groups at a significance level of 5%. Only group 3 promoted a statistically significant effect on ΔE compared with groups 1 and 2 (p<0.001 and p=0.003, respectively). No statistically significant difference was found between groups for surface roughness (p>0.05). SEM revealed a more irregular surface in group 1 specimens compared with group 2 and 3 specimens. The charcoal-based powder did not seem to have any bleaching effect.

摘要

临床相关性

活性炭粉对牙齿美白无效。

摘要

市场上出现了一种新型的含炭基的牙膏，用于牙齿美白。制造商声称，此类含炭基产品具有炭的美白、再矿化、抗菌和抗真菌特性。然而，这些说法并没有确凿的科学证据支持。本实验室的随机研究旨在评估一种含炭基牙粉的美白性能。总共 45 个牛牙釉质圆盘被随机分为三组（每组 15 个）：组 1，用含 1450ppmF 的牙膏进行机械刷牙（对照组）；组 2，用活性炭基粉末进行机械刷牙；组 3，按照标准方案用 10%的过氧化脲进行漂白。在基线和实验 14 天后分析每个样本的表面粗糙度和颜色。从每组中随机选择一个样本的表面用扫描电子显微镜（SEM）进行检查。使用 Kruskal-Wallis 检验在 5%的显著水平下比较组间差异。只有组 3 与组 1 和组 2 相比，在 ΔE 上有统计学意义的显著效果（分别为 p<0.001 和 p=0.003）。各组之间的表面粗糙度没有统计学差异（p>0.05）。SEM 显示，与组 2 和组 3 相比，组 1 样本的表面更不规则。含炭基的粉末似乎没有任何漂白效果。