Comparison of light transmittance in different thicknesses of zirconia under various light curing units


ÇEKİÇ NAGAŞ I. , EĞİLMEZ F. , ERGÜN G.

JOURNAL OF ADVANCED PROSTHODONTICS, cilt.4, sa.2, ss.93-96, 2012 (SCI İndekslerine Giren Dergi) identifier identifier identifier

  • Yayın Türü: Makale / Tam Makale
  • Cilt numarası: 4 Konu: 2
  • Basım Tarihi: 2012
  • Doi Numarası: 10.4047/jap.2012.4.2.93
  • Dergi Adı: JOURNAL OF ADVANCED PROSTHODONTICS
  • Sayfa Sayıları: ss.93-96

Özet

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