کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
7236955 | 1471098 | 2018 | 4 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Mechanical characterization of in vitro-formed short-term salivary pellicle
ترجمه فارسی عنوان
مشخصه مکانیکی پروتئین بزاق سر و گردن در شرایط آزمایشگاهی
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کلمات کلیدی
مینای دندان، غده بزاقی به دست آمده، نانو انداختن، ضخامت ساختار، ویژگی های مکانیکی،
موضوعات مرتبط
مهندسی و علوم پایه
سایر رشته های مهندسی
مهندسی پزشکی
چکیده انگلیسی
Human saliva consists of approximately 98% water and a variety of electrolytes and proteins. Those proteins can be selectively adsorbed onto the enamel surface. The cuticular material formed on the enamel surface is termed acquired salivary pellicle (ASP), which is critical for the health of oral mucosa and teeth. The ASP is composed of a inner layer and a outer layer. The lubricating properties of ASP are closely associated with the inner layer. The aim of this research is to characterize the structural and mechanical properties of the inner layer of ASP. In this paper, enamel specimens were immersed for 1â¯min in human saliva. The ASP formed in vitro within 1â¯min was studied using a nanoindenter. The results show that the thickness of the inner layer of ASP is approximately 18â¯nm. Moreover, the inner layer is a heterogeneous pellicle with a gradient in density. From the surface of the inner layer to the enamel surface, the density and mechanical properties gradually increase. The research results may be helpful to extend the understanding of mechanical properties of salivary pellicle and to the oral hygiene industry for diagnose oral diseases.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Biomechanics - Volume 66, 3 January 2018, Pages 194-197
Journal: Journal of Biomechanics - Volume 66, 3 January 2018, Pages 194-197
نویسندگان
Yafeng Zhang, Jing Zheng, Jiaxin Yu, Hongtu He,