Diametral tensile and compressive strengths of several types of core materials

Journal of Prosthodontics : Official Journal of the American College of Prosthodontists
Bulem YüzügüllüSenay Canay

Abstract

Compressive and diametral tensile strengths (DTSs) of core materials are thought to be important, because cores usually replace a large bulk of tooth structure and should provide sufficient strength to resist intraoral tensile and compressive forces. This study was undertaken to compare the mechanical properties of materials used for direct core foundations. The differences between the compressive and DTSs of six core materials, including Duralloy (high-copper amalgam), Grandio (visible light-cured nanohybrid resin composite), Admira (organically modified ceramic), Filtek P60 (packable composite resin), Rebilda DC (dual-cure adhesive core material), and Argion Molar (silver-reinforced glass ionomer cement), were tested. A total of 120 specimens, half for the compressive strength (CS) test (6 mm in height, 4 mm in diameter) and the other half for the DTS test (6 mm in diameter, 3 mm in thickness), were prepared. The specimens were stored at room temperature in distilled water for 7 days. The Lloyd testing machine was used to load the specimens at a crosshead speed 0.5 cm/min, and the strength values were determined in MPa. The compressive and DTS test values (in MPa), respectively, of the materials were: Admira (361, 44); Filtek...Continue Reading

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Citations

Apr 8, 2010·Clinical Oral Investigations·Stefan RüttermannRalf R Janda
Jan 26, 2010·Dental Materials : Official Publication of the Academy of Dental Materials·J JanusO Etienne
Mar 11, 2017·British Dental Journal·J ChestermanP Nixon
Mar 30, 2010·Journal of Dental Research·A F V SantosA Versluis
Nov 2, 2018·Dental Materials Journal·Sasinisa Warangkulkasemkit, Piyapanna Pumpaluk
Apr 6, 2017·Primary Dental Journal·Andrew Shelley
Apr 6, 2017·Primary Dental Journal·Andrew Shelley

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