Barry T N, Bailey C W, Ashcraft-Olmscheid D, Vandewalle K S
Oper Dent. 2017 Sep/Oct;42(5):559-566. doi: 10.2341/16-200-L.
The purpose of this study was to compare the whitening efficacy of a novel bleaching agent containing a unique tribarrel hydremide-peroxide gel (KöR) with a traditional bleaching system of hydrogen peroxide or carbamide peroxide (Opalescence). Bovine incisors were mounted into a custom resin, arch-shaped mounting device. Four groups of 10 teeth were created using mounting devices containing five teeth each. The in-office and home bleaching gels of KöR and Opalescence were applied to the teeth alone and in trays to simulate a combination of in-office and home bleaching or home bleaching only. Spectrophotometer readings of L* a* b* were performed at baseline, the end of active bleaching (immediate), and three and six months postbleaching. Immediately postbleaching, the use of Opalescence gel resulted in greater change in ΔE* and Δb* (less yellow) for combined and home bleaching techniques compared with KöR. After six months, Opalescence had significantly greater ΔE* and Δb* compared with KöR for home bleaching only. There was no significant difference in ΔL* between Opalescence and KöR at any time period with either technique.
本研究的目的是比较一种含有独特三桶水合过氧化物凝胶（KöR）的新型漂白剂与传统的过氧化氢或过氧化脲漂白系统（皓齿美白）的美白效果。将牛切牙安装到定制的树脂拱形安装装置中。使用每个包含五颗牙齿的安装装置创建四组，每组10颗牙齿。将KöR和皓齿美白的诊室和家庭漂白凝胶单独应用于牙齿，并放在托盘里，以模拟诊室和家庭联合漂白或仅家庭漂白的情况。在基线、活性漂白结束时（即刻）以及漂白后三个月和六个月进行Lab分光光度计读数。漂白后即刻，与KöR相比，使用皓齿美白凝胶在联合漂白技术和家庭漂白技术中导致更大的ΔE和Δb变化（黄色减少）。六个月后，仅在家庭漂白中，皓齿美白的ΔE和Δb显著大于KöR。在任何时间段，使用任何一种技术时，皓齿美白和KöR之间的ΔL均无显著差异。
