Department of Restorative Dentistry, Division of Operative Dentistry, Oregon Health & Science University School of Dentistry, Portland, OR, USA.
J Esthet Restor Dent. 2011 Apr;23(2):97-104. doi: 10.1111/j.1708-8240.2010.00400.x. Epub 2011 Feb 25.
The purpose of this study was to compare the whitening efficacy of an in-office whitening system with and without the whitening primer application and evaluate tooth and soft tissue sensitivity.
This was a randomized, split-mouth design, single-blinded, clinical study. Twenty-five patients received a whitening priming agent (Power Swabs, Power Swabs Corporation, Beaverton, OR, USA) on right or left maxillary incisors prior to in-office tooth whitening with Opalescence Boost (38% hydrogen peroxide; Ultradent Products, Inc., South Jordan, UT, USA). Color was evaluated with the Bleachedguide 3D Master (Vita Zahnfabrik, Bad Sackingen, Germany) and Vita Easyshade spectrophotometer (Vident, Brea, CA, USA), after 30 minutes, 1 day, and 15 days postwhitening. After each tooth color measurement, the subjects were asked to rate their tooth and soft tissue sensitivity experience using a visual analog scale (1-10 categories). Results were analyzed by two-way repeated measurements analysis of variance/Tukey's (p<0.05); Mann-Whitney rank sum test and Kruskal-Wallis.
The teeth that were treated with the primer prior to tooth whitening did not show significant difference in ΔL*, Δa*, Δb*, ΔE* and delta shade guide from the teeth that were not treated with the primer, at the three time points evaluated (baseline versus 30 minutes after in-office treatment, baseline versus 1 day, and baseline versus 15 days). None of the subjects experienced soft tissue sensitivity, and those who experienced tooth sensitivity said it was not noticeable after 15 days postwhitening.
The primer neither enhanced the whitening effect nor decreased tooth sensitivity when used before vital bleaching with Opalescence Boost (Ultradent Products, Inc., South Jordan, UT, USA). None of the subjects experienced soft tissue sensitivity, and some experienced transient tooth sensitivity.
本研究旨在比较使用和不使用美白底漆的诊室美白系统的美白效果，并评估牙齿和软组织敏感性。
这是一项随机、分口、单盲、临床研究。25 名患者在接受诊室牙齿美白（美国犹他州南乔丹市 Ultradent Products, Inc. 的 Opalescence Boost，38%过氧化氢）之前，在右上或左上切牙上使用美白底漆（Power Swabs，Power Swabs Corporation，比佛顿，OR，美国）。美白后 30 分钟、1 天和 15 天，用 Bleachedguide 3D Master（德国 Vita Zahnfabrik，Bad Sackingen）和 Vita Easyshade 分光光度计（美国加利福尼亚州 Brea 市 Vident）评估颜色。每次牙齿颜色测量后，受试者使用视觉模拟量表（1-10 类）评估他们的牙齿和软组织敏感性体验。结果采用双向重复测量方差分析/Tukey 检验（p<0.05）；Mann-Whitney 秩和检验和 Kruskal-Wallis 检验进行分析。
在三个评估时间点（诊室治疗后 30 分钟与基线、1 天与基线、15 天与基线），与未用底漆处理的牙齿相比，用底漆处理的牙齿在 ΔL*、Δa*、Δb*、ΔE*和 delta shade guide 方面没有显著差异。受试者均未出现软组织敏感性，而那些出现牙齿敏感性的受试者在美白后 15 天表示已无明显不适。
在使用 Opalescence Boost（Ultradent Products, Inc.，South Jordan，UT，USA）进行活髓漂白之前使用底漆既不会增强漂白效果，也不会降低牙齿敏感性。受试者均未出现软组织敏感性，有些受试者出现短暂性牙齿敏感性。
