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- Title
Comparative Study of the Physical Properties of Core Materials.
- Authors
Saygılı, Gülbin; Şahmalı, Sevil M.
- Abstract
This study was undertaken to measure physical properties of materials used for direct core buildups, including high-copper amalgam, visible light--cured resin composite, autocured titanium-containing composite, polyacid-modified composite, resin-modified glass-ionomer, and silver cermet cement. Compressive strength, diametral tensile strength, and flexural strength of six core materials of various material classes were measured for each material as a function of time up to 3 months at different storage conditions, using a standard specification test designed for the materials. Three different storage conditions (dry, humid, wet) at 37°C were chosen. Materials were manipulated according to manufacturers' instructions for use as cores. Mean compressive, diametral tensile, and flexural strengths with associated standard deviations were calculated for each material. Multiple comparison and Newman-Keuls tests discerned many differences among materials. All materials were found to meet the minimum specification requirements, except in terms of flexural strength for amalgam after 1 hour and the silver cermet at all time intervals.
- Publication
International Journal of Periodontics & Restorative Dentistry, 2002, Vol 22, Issue 4, p355
- ISSN
0198-7569
- Publication type
Academic Journal