Vargas-Koudriavtsev Tatiana, Herrera-Sancho Óscar-Andrey
Dental Faculty, University of Costa Rica. Postgraduate Program in Prosthodontics, University of Costa Rica.
School of Physics, University of Costa Rica. Materials Research Science and Engineering Center, University of Costa Rica. Institute for Quantum Optics and Quantum Information, Austrian Academy of Sciences, Innsbruck, Austria.
J Clin Exp Dent. 2017 Jan 1;9(1):e101-e106. doi: 10.4317/jced.53145. eCollection 2017 Jan.
There are not many studies evaluating the effects of surface treatments at the molecular level. The aim of this study was to analyze the concentration of carbonate molecules in dental enamel by Raman spectroscopy after the application of in-office and home whitening agents.
Sixty human teeth were randomly divided into six groups and exposed to three different home bleaching gels (Day White) and three in-office whitening agents (Zoom! Whitespeed and PolaOffice) according to the manufacturer´s instructions. The concentration of carbonate molecules in enamel was measured prior to and during the treatment by means of Raman spectroscopy. Statistical analysis included repeated measures analysis of variance (≤0.05) and Bonferroni pairwise comparisons.
At home bleaching agents depicted a decrease in the carbonate molecule. This decrease was statistically significant for the bleaching gel with the highest hydrogen peroxide concentration (≤0,05). In-office whitening agents caused an increase in carbonate, which was significant for all three groups (≤0,05).
In-office bleaching gels seem to cause a gain in carbonate of the enamel structure, whilst at-home whitening gels caused a loss in carbonate. Bleaching, whitening, hydrogen peroxide, carbamide peroxide, Raman spectroscopy, carbonate.
评估表面处理在分子水平上的影响的研究并不多。本研究的目的是通过拉曼光谱分析在使用诊室美白剂和家用美白剂后牙釉质中碳酸盐分子的浓度。
60颗人牙随机分为6组，按照制造商的说明分别使用三种不同的家用漂白凝胶（Day White）和三种诊室美白剂（Zoom! Whitespeed和PolaOffice）。在治疗前和治疗期间通过拉曼光谱测量牙釉质中碳酸盐分子的浓度。统计分析包括重复测量方差分析（≤0.05）和Bonferroni两两比较。
家用漂白剂使碳酸盐分子减少。对于过氧化氢浓度最高的漂白凝胶，这种减少具有统计学意义（≤0.05）。诊室美白剂使碳酸盐增加，对所有三组均具有显著性（≤0.05）。
诊室漂白凝胶似乎会使牙釉质结构中的碳酸盐增加，而家用美白凝胶会使碳酸盐减少。漂白、美白、过氧化氢、过氧化脲、拉曼光谱、碳酸盐。
