The Journal of Advanced Prosthodontics

  • 제4권2호
  • /
  • Pages.93-96
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  • 2012
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  • 2005-7806(pISSN)
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  • 2005-7814(eISSN)
대한치과보철학회 (The Korean Academy of Prosthodonitics)
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Comparison of light transmittance in different thicknesses of zirconia under various light curing units

  • Cekic-Nagas, Isil (Department of Prosthodontics, Faculty of Dentistry, Gazi University) ;
  • Egilmez, Ferhan (Department of Prosthodontics, Faculty of Dentistry, Gazi University) ;
  • Ergun, Gulfem (Department of Prosthodontics, Faculty of Dentistry, Gazi University)
  • 투고 : 2012.02.03
  • 심사 : 2012.05.04
  • 발행 : 2012.05.31
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초록

PURPOSE. The objective of this study was to compare the light transmittance of zirconia in different thicknesses using various light curing units. MATERIALS AND METHODS. 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.

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참고문헌

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