The effect of repeated firings on the color change and surface roughness of dental ceramics
The Journal of Advanced Prosthodontics
;
: 309-316, 2014.
Article
in English
| WPRIM
| ID: wpr-86715
ABSTRACT
PURPOSE:
The color of the ceramic restorations is affected by various factors such as brand, thickness of the layered the ceramic, condensation techniques, smoothness of surface, number of firings, firing temperature and thickness of dentin. The aim of this study was to evaluate the color change and surface roughness in dental porcelain with different thicknesses during repeated firings. MATERIALS ANDMETHODS:
Disc-shaped (N=21) metal-ceramic samples (IPS Classic; Ivoclar Vivadent; Shaar, Liechtenstein) with different thickness were exposed to repeated firings. Color measurement of the samples was made using a colorimeter and profilometer was used to determine surface roughness. ANOVA and Tukey tests with repeated measurements were used for statistical analysis.RESULTS:
The total thickness of the ceramics which is less than 2 mm significantly have detrimental effect on the surface properties and color of porcelains during firings (P<.05).CONCLUSION:
Repeated firings have effects on the color change and surface roughness of the dental ceramics and should be avoided.
Full text:
Available
Index:
WPRIM (Western Pacific)
Main subject:
Surface Properties
/
Ceramics
/
Dental Porcelain
/
Dentin
/
Fires
Language:
English
Journal:
The Journal of Advanced Prosthodontics
Year:
2014
Type:
Article
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