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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Abstract

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
Projects:	Project title Project leader Project code Project type DENTALNE TRAUME U DJECE: PREVENCIJA I LIJEČENJE- Ilija Škrinjarić 065-0653147-1197 MZOS Cijeljenje koštanog defekta nakon imedijatne implantacije- Davor Katanec 065-0000000-0424 MZOS Površinske sile na atomskoj skali u istraživanju mora i nanotehnologiji- Vesna Svetličić 098-0982934-2744 MZOS Utjecaj protetskog rada i drugih faktora na stomatognati sustav i zdravlje- Asja Čelebić 065-0650446-0420 MZOS Istraživanje materijala i kliničkih postupaka u stomatološkoj protetici- Denis Vojvodić 065-0650445-0413 MZOS Istraživanje keramičkih materijala i alergija u stomatološkoj protetici- Ketij Mehulić 065-0650446-0435 MZOS
Depositing User:	Suzana Šegota
Date Deposited:	14 Sep 2016 09:34
URI:	http://fulir.irb.hr/id/eprint/3046

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