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The International Journal of Prosthodontics

Edited by George A. Zarb, BChD, DDS, MS, MS, FRCD(C)

ISSN 0893-2174

January/February 2011
Volume 24 , Issue 1

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Investigation of the Influence of Gastric Acid on the Surface Roughness of Ceramic Materials of Metal-Ceramic Restorations. An In Vitro Study

Eirini Matsou, DDS, MSc/Nikolaos Vouroutzis, PhD/Eleana Kontonasaki, DDS, PhD/Konstantinos M. Paraskevopoulos, MSc, PhD/Petros Koidis, DDS, MSc, PhD

Pages: 2629
PMID: 21209998

The rehabilitation of eroded teeth in patients suffering from bulimia nervosa generally includes ceramics. This study compared the roughness of three ceramics before and after exposure to simulated vomit solution (SVS) with a pH of 3.8. Surface roughness parameters Ra, RMS, and AH were calculated using atomic force microscopy before and after exposure to SVS (novel peristaltic pump for 24 hours at 37C) and were analyzed statistically. Apart from the initial high AH values of the glass-ceramic, none of the parameters evaluated were statistically significantly different after acid exposure. Under the limitations of this in vitro study, the investigated ceramics seem suitable for use in bulimia nervosa patients. Int J Prosthodont 2011;24:2629.

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