Characterization of the bioactive and mechanical behavior of dental ceramic/sol-gel derived bioactive glass mixtures

被引：15

作者：

Abbasi, Zahra ^{[1
]}

Bahrololoum, Mohammad E. ^{[1
]}

Bagheri, Rafat ^{[2
]}

Shariat, Mohammad H. ^{[1
]}

机构：

[1] Shiraz Univ, Sch Engn, Mat Sci & Engn Dept, Shiraz, Iran

[2] Shiraz Univ Med Sci, Sch Dent, Dent Mat Dept, Shiraz, Iran

来源：

JOURNAL OF THE MECHANICAL BEHAVIOR OF BIOMEDICAL MATERIALS | 2016年 / 54卷

关键词：

Dental ceramics; Bioactive glass; Sol-gel; Bioactive behavior; FABRICATION; COMPOSITES;

D O I：

10.1016/j.jmbbm.2015.09.025

中图分类号：

R318 [生物医学工程];

学科分类号：

0831 ;

摘要：

Dental ceramics can be modified by bioactive glasses in order to develop apatite layer on their surface. One of the benefits of such modification is to prolong the lifetime of the fixed dental prosthesis by preventing the formation of secondary caries. Dental ceramic/sol-gel derived bioactive glass mixture is one of the options for this modification. In the current study, mixtures of dental ceramic/bioactive glass with different compositions were successfully produced. To evaluate their bioactive behavior, prepared samples were immersed in a simulated body fluid at various time intervals. The prepared and soaked specimens were characterized using Fourier transform infrared spectroscopy, X-ray diffractometry and scanning electron microscopy. Since bioactive glasses have deleterious effects on the mechanical properties of dental ceramics, 3-point bending tests were used to evaluate the flexural strength, flexural strain, tangent modulus of elasticity and Weibull modulus of the specimens in order to find the optimal relationship between mechanical and bioactive properties. (C) 2015 Elsevier Ltd. All rights reserved.

引用

页码：115 / 122

页数：8

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