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Revista de Chimie (Rev. Chim.), Year 2016, Volume 67, Issue 6,





NICOLETA TOFAN, SORIN ANDRIAN, IRINA NICA, SIMONA STOLERIU, CLAUDIU TOPOLICEANU, ROMEO CHELARIU, MARIA BOLAT, GALINA PANCU
The Assessment of Erosive Potential of Some Acid Beverages
on Indirect - Restorative Materials

Abstract:

The aim of the study was to assess the pH of some acid beverages and their erosive potential on the indirect restoration materials by evaluation the surface microhardness. The study group included 20 samples of three ceramics mass (IPS In Line, Hera Ceram, Reflex Dimension) and three composite resins (Ceramage, SR Adoro, Luna-Wing) immersed in three acid beverages (Red Bul, wine, Coca Cola), for 5 min, 3 times daily, 14 days. In the control group, the samples were maintained in artificial saliva. After the end of erosive cycles and before the determination of surface microhardness, all the samples were maintained in artificial saliva for 18 h. The surface microhardness was determined using microhardness tester CV-400DM (Tecnimetal S.A. Spania), and pH was measured using a pH-meter Checker (HANNA Instrument - Romania). The immersion of indirect restorative materials (composite resins and ceramics) in acid beverages determines significant decreased of their surface hardness. The highest hardness changes were determined by Coca-Cola, followed by wine and Red Bull. Keywords: surface hardness, composite resins, ceramic, erosion, acid beverages


Issue: 2016, Volume 67, Issue 6
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