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Effects of temperature change and beverage on mechanical and tribological properties of dental restorative composites

Ayatollahi, Majid Reza and Yahya, Mohd Yazid and Karimzadeh, Atefeh and Nikkhooyifar, M. and Ayob, Amran (2015) Effects of temperature change and beverage on mechanical and tribological properties of dental restorative composites. Materials Science And Engineering C, 54 . pp. 69-75. ISSN 0928-4931

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Official URL: http://dx.doi.org/10.1016/j.msec.2015.05.004

Abstract

The aim of this study was to investigate the effects of temperature change and immersion in two common beverages on the mechanical and tribological properties for three different types of dental restorative materials. Thermocycling procedure was performed for simulating temperature changes in oral conditions. Black tea and soft drink were considered for beverages. Universal composite, universal nanohybrid composite and universal nanofilled composite, were used as dental materials. The nanoindentation and nanoscratch experiments were utilized to determine the elastic modulus, hardness, plasticity index and wear resistance of the test specimens. The results showed that thermocycling and immersion in each beverage had different effects on the tested dental materials. The mechanical and tribological properties of nanohybrid composite and nanocomposite were less sensitive to temperature change and to immersion in beverages in comparison with those of the conventional dental composite.

Item Type:Article
Uncontrolled Keywords:chemicals and cas registry numbers, composite resins; dental materials; tea
Subjects:A General Works
ID Code:58438
Deposited By: Haliza Zainal
Deposited On:04 Dec 2016 12:07
Last Modified:27 Feb 2017 09:13

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