诊室用和家用漂白凝胶对银汞合金表面汞含量的影响。

Effects of in-office and home bleaching gels on the surface mercury levels of dental amalgam.

作者信息

Oskoee Parnian Alizadeh, Kahnamoui Mahdi Abed, Oskoee Siavash Savadi, Zadfattah Firooz, Pournaghi-Azar Fatemeh

机构信息

Associate Professor, Department of Operative Dentistry, Faculty of Dentistry, Tabriz University of Medical Sciences, Tabriz, Iran.

出版信息

Eur J Dent. 2010 Jan;4(1):23-7.

PMID:20046476

原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC2798786/

Abstract

OBJECTIVES

The aim of this study was to evaluate the effect of different in-office and home bleaching gels on the surface mercury levels of dental amalgam.

METHODS

Sixty disk-shaped amalgam specimens (GS-80, SDI- Australia) were prepared and randomly divided into the following treatment groups: 1. Distilled water (control); 2. 15% home-bleach carbamide peroxide (Opalescence PF, Ultra dent, USA) applied for 6 h/day for 3 weeks; and 3. 35% in-office bleach carbamide peroxide (Opalescence Quick, Ultradent) applied for 30 min/week for 3 weeks. Levels of mercury were measured as weight percentages using an energy dispersive x-ray micro-analyzer detector connected to an electron microscope. Data was analyzed using one-way ANOVA and a post hoc Tukey tests (P<.05).

RESULTS

There were no significant differences between the surface mercury levels measured following treatment with the tested home-bleach and in-office bleach products (P=0.71). However, both materials yielded significantly more mercury levels than that of the control group (P<.001).

CONCLUSIONS

The tested bleaching products significantly elevated the surface mercury levels of amalgam in vitro.

摘要

目的

本研究旨在评估不同的诊室用和家用漂白凝胶对牙科汞合金表面汞含量的影响。

方法

制备60个圆盘形汞合金标本（GS - 80，SDI - 澳大利亚），并随机分为以下治疗组：1. 蒸馏水（对照组）；2. 15%家用过氧化脲漂白剂（Opalescence PF，美国Ultradent公司），每天使用6小时，持续3周；3. 35%诊室用过氧化脲漂白剂（Opalescence Quick，Ultradent公司），每周使用30分钟，持续3周。使用连接到电子显微镜的能量色散X射线微分析仪探测器以重量百分比测量汞含量。数据采用单因素方差分析和事后Tukey检验进行分析（P <.05）。