Short and long term effects of additional post curing and polishing systems on the color change of dental nano-composites

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概要

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• The purpose was to determine the short and long term effects of polishing systems and post-heat-light curing on the color stability of nano-composites. The disc shaped samples (ø=10 mm, h=3 mm) were prepared. Forty subgroups (n=5) were designed according to two different curing conditions and five different polishing methods. Color change measurements were performed on the day of specimen preparation (base) and repeated after 1 and 7 months of water storage. MANOVA and Tukeys post hoc tests were applied (p<0.05). While the color difference values of resin composites were ranked as EXP2>EXP1>CME≥XTE after 1 month (p<0.05), after 7 months the ranking was EXP2≥EXP1>XTE>CME (p<0.05). Type and compositions of nano-composites may be important on the long-term color stability of the restoration. Additional post-heat-light curing of nano-composites may produce higher color change than the hand-light curing protocol. Consequently, the polishing procedures should be applied to obtain more resistant composite surface to discoloration.

著者

• K. VALLITTU

  University of Turku, Institute of Dentistry

• V. J.

  University of Turku, Institute of Dentistry, Department of Biomaterials Science and Turku Clinical Biomaterials Center - TCBC

• EGILMEZ Ferhan

  Gazi University, Faculty of Dentistry, Department of Prosthodontics

• ERGUN Gulfem

  Gazi University, Faculty of Dentistry, Department of Prosthodontics

• CEKIC-NAGAS Isil

  Gazi University, Faculty of Dentistry, Department of Prosthodontics

関連論文

• Short and long term effects of additional post curing and polishing systems on the color change of dental nano-composites

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