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Lasers in Medical Science

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01.02.2015 | Original Article

Bonding strength of silorane-based composite to Er-YAG laser prepared dentin

verfasst von: E. Koliniotou-Koumpia, P. Kouros, D. Dionysopoulos, L. Zafiriadis

Erschienen in: Lasers in Medical Science | Ausgabe 2/2015

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Abstract

The aim of this study was to investigate the shear bond strength of two adhesive systems to laser-irradiated dentin compared with their shear bond strength to bur-cut dentin as well as to evaluate the influence of composition and type of dental materials on shear bond strength. Thirty-two dentin specimens prepared from human third molars were divided into two groups and conditioned either with an Er:YAG laser machine or with a carbide bur. Two different adhesive systems (Silorane System Adhesive and Single Bond) were evaluated in the present study. After light curing of the adhesives, a Teflon mold was placed over the ring with the dentin sample and filled with the composite resins Filtek Silorane and Filtek Z250 combined with the appropriate adhesive systems. This procedure resulted in 32 cylindrical specimens (3 mm in diameter, 4 mm in height) being bonded to the dentin. The specimens were stored for 24 h at 37 °C in water and then were thermocycled. Shear bond strength testing was conducted by means of a universal testing machine and failure patterns were analyzed under a stereomicroscope. Two specimens of each fracture failure mode were randomly selected for SEM evaluation. Filtek Silorane present no statistically significant difference in shear bond strength compared with Filtek Z250, regardless of dentin treatment (p > 0.05). Additionally, the self-etching Silorane Adhesive System exhibited as good adhesive values as etch-and-rinse Single Bond, independently on dentinal substrate (p > 0.05). Specimens prepared by Er:YAG laser appear as receptive to adhesive procedures as conventional carbide bur-cut specimens (p > 0.05).

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Titel: Bonding strength of silorane-based composite to Er-YAG laser prepared dentin
verfasst von: E. Koliniotou-Koumpia
P. Kouros
D. Dionysopoulos
L. Zafiriadis
Publikationsdatum: 01.02.2015
Verlag: Springer London
Erschienen in: Lasers in Medical Science / Ausgabe 2/2015
Print ISSN: 0268-8921
Elektronische ISSN: 1435-604X
DOI: https://doi.org/10.1007/s10103-013-1353-y

Springer Medizin

Abstract

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