Swift Edward J, Miguez Patricia A, Barker Matthew L, Gerlach Robert W
Department of Operative Dentistry, University of North Carolina, Chapel Hill, North Carolina, USA.
Compend Contin Educ Dent. 2004 Aug;25(8 Suppl 2):27-32.
This clinical trial tested the efficacy and safety of a professional strip-based whitening system (Crest Whitestrips Supreme) using the manufacturer's recommended 3-week treatment regimen. These strips have a higher concentration, but a similar amount of hydrogen peroxide relative to Crest Professional Whitestrips, because the thickness of the gel on strips is reduced. Tooth whitening was measured using the value-oriented VITA Classic Shade Guide before and after treatment. Twenty-nine subjects were treated with either Crest Whitestrips Supreme or placebo strips that did not contain hydrogen peroxide. Participants in the experimental group achieved a mean lightening of nearly eight VITA shades relative to placebo, with minimal side effects.
这项临床试验采用制造商推荐的3周治疗方案，测试了一种专业的条状美白系统（佳洁士至尊美白牙贴）的疗效和安全性。与佳洁士专业美白牙贴相比，这些牙贴的过氧化氢浓度更高，但含量相近，因为牙贴上凝胶的厚度减小了。治疗前后使用以数值为导向的VITA经典比色板测量牙齿美白情况。29名受试者分别使用佳洁士至尊美白牙贴或不含过氧化氢的安慰剂牙贴进行治疗。与安慰剂相比，实验组的受试者平均牙齿亮度提升了近8个VITA色阶，且副作用极小。
