The effect of core veneer thickness ratio on the flexural strength of diatomite-based dental ceramic

Shanghai Journal of Stomatology ›› 2015, Vol. 24 ›› Issue (3): 298-301.

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The effect of core veneer thickness ratio on the flexural strength of diatomite-based dental ceramic

JIANG Jie¹,ZHANG Xin¹,GAO Mei-qin¹,ZHANG Fei-min²,LU Xiao-li¹

1.Nantong Stomatological Hospital. Nantong 226000;
2.Institute of Stomatology, Nanjing Medical University. Nanjing 210029, Jiangsu Province, China

Received:2014-11-05 Online:2015-06-20 Published:2015-07-24
Supported by:
Science and Technology Projects of Nantong City（HS2013010）

Abstract

Abstract: PURPOSE: To evaluate the effect of different core veneer thickness ratios on the flexural strength and failure mode of bilayered diatomite-based dental ceramics. METHODS: Diatomite-based dental ceramics blocks (16 mm×5.4 mm×1 mm) were sintered with different thickness of veneer porcelains: 0 mm (group A), 0.6 mm (group B), 0.8 mm (group C) and 1.0 mm(group D). Flexural strength was detected and scanning electron microscope was used to observe the interface microstructure. Statistical analysis was performed using SPSS 17.0 software package. RESULTS: With the increase of the thickness of the veneer porcelain, flexural strength of group C showed highest flexural strength up to(277.24±5.47) MPa. CONCLUSIONS: Different core veneer thickness ratios can significantly influence the flexural strength of bilayered diatomite-based dental ceramics.

Key words: Basal porcelain, Veneer porcelain, Thickness ratio, Flexural strength

CLC Number:

R783.3

JIANG Jie,ZHANG Xin,GAO Mei-qin,ZHANG Fei-min,LU Xiao-li. The effect of core veneer thickness ratio on the flexural strength of diatomite-based dental ceramic[J]. Shanghai Journal of Stomatology, 2015, 24(3): 298-301.

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The effect of core veneer thickness ratio on the flexural strength of diatomite-based dental ceramic

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