The effects of repetitive firing processes on the optical, thermal, and phase formation changes of zirconia
The Journal of Advanced Prosthodontics
;
: 9-14, 2020.
Article
in English
| WPRIM
| ID: wpr-811435
ABSTRACT
PURPOSE:
The aim of this study was to investigate the effect of different numbers of heat treatments applied to superstructure porcelain on optical, thermal, and phase formation properties of zirconia.MATERIALS ANDMETHODS:
Forty zirconia specimens were prepared in the form of rectangular prism. Specimens were divided into four groups (n = 10) according to the number of firing at heating values of porcelain. Color differences and translucency parameter were measured, and X-ray diffraction (XRD) analysis and differential scanning calorimetry (DSC) were performed. Data were analyzed with analysis of variance (ANOVA).RESULTS:
There were no statistically significant differences in ΔE, TP, L, a, and b value changes of the zirconia specimens as a result of repetitive firing processes (P>.05).CONCLUSION:
Although additional firing processes up to 4 increase peak density in thermal analysis, additional firing processes up to 4 times can be applied safely as they do not result in a change in color and phase character of zircon frameworks.
Full text:
Available
Index:
WPRIM (Western Pacific)
Main subject:
X-Ray Diffraction
/
Calorimetry, Differential Scanning
/
Dental Porcelain
/
Fires
/
Hot Temperature
/
Heating
Language:
English
Journal:
The Journal of Advanced Prosthodontics
Year:
2020
Type:
Article
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