Comparison of light transmittance in different thicknesses of zirconia under various light curing units
The Journal of Advanced Prosthodontics
;
: 93-96, 2012.
Article
in English
| WPRIM
| ID: wpr-25534
ABSTRACT
PURPOSE:
The objective of this study was to compare the light transmittance of zirconia in different thicknesses using various light curing units. MATERIALS ANDMETHODS:
A total of 21 disc-shaped zirconia specimens (5 mm in diameter) in different thicknesses (0.3, 0.5 and 0.8 mm) were prepared. The light transmittance of the specimens under three different light-curing units (quartz tungsten halogen, light-emitting diodes and plasma arc) was compared by using a hand-held radiometer. Statistical significance was determined using two-way ANOVA (alpha=.05).RESULTS:
ANOVA revealed that thickness of zirconia and light curing unit had significant effects on light transmittance (P<.001).CONCLUSION:
Greater thickness of zirconia results in lower light transmittance. Light-emitting diodes light-curing units might be considered as effective as Plasma arc light-curing units or more effective than Quartz-tungsten-halogen light-curing units for polymerization of the resin-based materials.
Full text:
Available
Index:
WPRIM (Western Pacific)
Main subject:
Plasma
/
Polymers
/
Tungsten
/
Zirconium
/
Polymerization
/
Light
Language:
English
Journal:
The Journal of Advanced Prosthodontics
Year:
2012
Type:
Article
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