牙膏对牙本质磨损的体外测量
The measurement in vitro of dentine abrasion by toothpastes.
作者信息
Vicentini Bruna Carvalho, Braga Sheila Regina Maia, Sobral Maria Angela Pita
机构信息
Cidade Universitária, Departamento de Dentistica, Faculdade de Odontologia, Universidade de São Paulo, SP, Brasil.
出版信息
Int Dent J. 2007 Oct;57(5):314-8. doi: 10.1111/j.1875-595x.2007.tb00139.x.
OBJECTIVES
To investigate the in vitro dentine wear after tooth brushing with a range of nine toothpastes.
METHODS
70 bovine dentine blocks (aproximately 1 cm long) were used. Specimens were brushed in vitro with toothpastes with a range of abrasive. All the specimens were submitted to 10,000 brushing cycles with a 200g load. Initial and final weight and profile data were obtained using an analytical scale and a profile projector respectively.
RESULTS
Significant differences between the test products were found (p < 0.05). The mean dentine wear ranged from 0.039 to 0.006g and 0.502 to 0.185mm, with the highest wear for the whitening toothpastes.
CONCLUSIONS
This study demonstrated that the type of toothpaste abrasive can contribute to dentine wear.
目的
研究使用九种不同牙膏刷牙后的体外牙本质磨损情况。
方法
使用70个牛牙本质块（约1厘米长）。将标本用具有不同磨蚀性的牙膏进行体外刷牙。所有标本在200克负荷下进行10000次刷牙循环。分别使用分析天平及轮廓投影仪获取初始和最终重量及轮廓数据。
结果
发现测试产品之间存在显著差异（p < 0.05）。牙本质平均磨损量在0.039至0.006克以及0.502至0.185毫米之间，美白牙膏的磨损量最高。
结论
本研究表明牙膏磨料类型会导致牙本质磨损。
Zotero 插件