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| 2010-22 |
| 22-1 |
ISSN (Print) 1013-9052
EISSN 1658-3558
The Saudi Dental Journal,
P.O. Box 52500,
Riyadh 11563,
Kingdom of Saudi Arabia
P.O. Box 52500,
Riyadh 11563,
Kingdom of Saudi Arabia
| Tel. |
966-1-467-7328 |
| Fax. |
933-1-467-7308 / 966-1-467-7534 |
| Email |
saudidj@ksu.edu.sa |
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Comparative study of composite, compomer and ormocer bi-axial flexural strength
Nadia M. Taher, BDS, MSc
The aim of this study was to measure and compare the bi-axial flexural strength of newly developed restorative ormocers with other composite and compomer restorative materials. Eight restorative materials were selected: two ormocers (Admira and Definite), three composite resins (Z-100, Z-250, and Pyramid), and three compomers (Compoglass F, Dyract AP and Composan Glass). Five 14 mm diameter x 2 mm thick disc-shaped specimens were prepared of each material using a silicone lubricated teflon mold. The specimens were stored in distilled water at 37oC for 24 hours before the biaxial flexural strengths were measured using an Instron universal testing machine. Definite had the lowest flexural strength mean (160.63 MPa) while Compoglass F had the highest (291.93 MPa). Admira had a statistically insignificant difference (201.53 MPa) when compared to Definite. The strength of Compoglass F and Composan Glass were statistically equal to but different statistically from Dyract AP. The figures for Z-100 and Z-250 were not statistically different, but the strength of Z-250 was statistically different from Pyramid.
Saudi Dental Journal 2002;14(1):7-10.
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