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A study of the surface topography and roughness of glazed and unglazed feldspathic ceramics

Mehulić, Ketij; Svetličić, Vesna; Šegota, Suzana; Vojvodić, Denis; Kovačić, Ivan; Katanec, Davor; Petričević, Nikola; Glavina, Domagoj; Čelebić, Asja (2010) A study of the surface topography and roughness of glazed and unglazed feldspathic ceramics. Collegium antropologicum, 34 (S1). pp. 235-238. ISSN 0350-6134

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The aim of this study was to obtain the 3-D qualitative and quantitative nanoscale data of the surface topography and surface roughness of glazed and unglazed feldspathic ceramics. Twelve samples composed of Ni-Cr alloy (Wiron 99, Bego Germany) and feldspathic ceramics (IPS Classic, Ivoclar-Vivadent, Schaan, Liechtenstein) were prepared, and divided into two groups, dependent of the surface final finishing ; 6 unglazed and 6 glazed samples. The surface of the samples was recorded and analysed by atomic force microscopy (AFM, Veeco Instruments, Santa Barbara, CA, USA). According to the results of this study, unglazed ceramic surface is significantly rougher than the glazed one, showing significantly higher root mean square (RMS), mean roughness (Ra) and maximum height (Z range values) (p<0.01), higher crystallites with sharper peaks and deeper pores. The roughness parameters of the unglazed samples were almost twice or even more higher than of the glazed samples. Exposed unglazed ceramic surfaces can therefore promote antagonistic tooth wear.

Item Type: Article
Uncontrolled Keywords: feldspathic ceramics; glazed; unglazed; AFM; surface roughness
Subjects: NATURAL SCIENCES > Chemistry
Divisions: Division for Marine and Enviromental Research
Project titleProject leaderProject codeProject type
Cijeljenje koštanog defekta nakon imedijatne implantacije-Davor Katanec065-0000000-0424MZOS
Površinske sile na atomskoj skali u istraživanju mora i nanotehnologiji-Vesna Svetličić098-0982934-2744MZOS
Utjecaj protetskog rada i drugih faktora na stomatognati sustav i zdravlje-Asja Čelebić065-0650446-0420MZOS
Istraživanje materijala i kliničkih postupaka u stomatološkoj protetici-Denis Vojvodić065-0650445-0413MZOS
Istraživanje keramičkih materijala i alergija u stomatološkoj protetici-Ketij Mehulić065-0650446-0435MZOS
Depositing User: Suzana Šegota
Date Deposited: 14 Sep 2016 09:34

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