Akademik Veri Yönetim Sistemi
JOURNAL OF LASER MICRO NANOENGINEERING, cilt.10, sa.2, ss.166-170, 2015 (SCI-Expanded)
This study aims to evaluate the effect of the surface treatment of fiber-reinforced posts through different treatment methods, including 2.78 mu m erbium chromium: yttrium scandium gallium garnet (Er, Cr: YSGG) laser at different powers, on the push-out bond strength of methacrylate resin-based glass fiber reinforced composite post to core composite. To obtain clinical success in post-supported restoration, a durable bond between post and core interfaces is very important. The effect of the Er Cr: YSGG laser on bonding strength when applied as a surface pretreatment of post surface has not been studied sufficiently. Forty-two fiber-reinforced posts were randomly divided into six groups according to surface treatment: Group 1: control with no surface treatment; Group 2: coated with silicated alumina particles (Co-Jet system, 3M ESPE, Seefeld, Germany); Group 3: 9% hydrofluoric (HF) acid for 1 min; and Groups 4, 5, and 6: 1 W, 2 W, and 3 W Er, Cr: YSGG laser for 1 min, respectively. After the application of the silane coupling agent to the surface of the posts, core material was applied to the posts, and three slices were obtained from each sample to evaluate the bond strength using the push-out test (n=18). The Co-Jet sandblasting group showed the highest values, while HF acid and 1 W and 2 W Er, Cr: YSGG laser treatments enhanced the bond strength between the fiber post and the composite core (p<0.05). Surface treatments of fiber-reinforced posts could enhance the bond strength to attain composite core build-up. Nevertheless, lower power settings might be preferred when using the hard-tissue laser. A chairside Er, Cr: YSGG laser system commonly preferred in dental applications increase the bond strength at lower power settings.