Settembrini L, Penugonda B, Fischer E
New York University College of Dentistry.
J Clin Dent. 1993;4(2):55-60.
This in vitro study evaluated the abrasiveness of seven dentifrices on microfill composite resin discs and dentin surfaces. The composite resin discs and dentin surfaces were brushed in groups using slurries of the different dentifrices. Each specimen was subjected to 2400 strokes using medium bristle toothbrushes at a brush tension of 150 g. Any changes in surface roughness were noted through the use of a mechanical profiler or profileometer and scanning electron micrographs. The results of this study have indicated that Rembrandt Whitening Toothpaste was significantly less abrasive to the microfill composite discs and dentin surfaces compared to the other dentifrices tested (p < .05, ANOVA). Further clinical studies may be warranted to test the abrasiveness of dentifrices, especially if they are used over extended periods of time.
这项体外研究评估了七种牙膏对微填料复合树脂盘和牙本质表面的磨损性。使用不同牙膏的浆液分组刷复合树脂盘和牙本质表面。每个标本使用中号刷毛牙刷，以150克的刷力进行2400次刷动。通过使用机械轮廓仪或表面轮廓仪以及扫描电子显微镜照片记录表面粗糙度的任何变化。这项研究的结果表明，与其他测试牙膏相比，伦勃朗美白牙膏对微填料复合树脂盘和牙本质表面的磨损性明显更小（p <.05，方差分析）。可能需要进一步的临床研究来测试牙膏的磨损性，特别是如果长时间使用的话。
