Document Detail

A study of the surface topography and roughness of glazed and unglazed feldspathic ceramics.
MedLine Citation:
PMID:  20402325     Owner:  NLM     Status:  MEDLINE    
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, U.S.A.). 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.
Ketij Mehuli?; Vesna Svetlici?; Suzana Segota; Denis Vojvodi?; Ivan Kovaci?; Davor Katanec; Nikola Petricevi?; Domagoj Glavina; Asja Celebi?
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Publication Detail:
Type:  Journal Article; Research Support, Non-U.S. Gov't    
Journal Detail:
Title:  Collegium antropologicum     Volume:  34 Suppl 1     ISSN:  0350-6134     ISO Abbreviation:  Coll Antropol     Publication Date:  2010 Mar 
Date Detail:
Created Date:  2010-04-20     Completed Date:  2010-05-04     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  8003354     Medline TA:  Coll Antropol     Country:  Croatia    
Other Details:
Languages:  eng     Pagination:  235-8     Citation Subset:  IM    
Department of Prosthodontics, School of Dental Medicine, University of Zagreb, Zagreb, Croatia.
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MeSH Terms
Ceramics / chemistry*
Dental Porcelain / chemistry*
Microscopy, Atomic Force
Surface Properties
Reg. No./Substance:
0/Ceramics; 12001-21-7/Dental Porcelain

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