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KMID : 0362219930200020177
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Journal of The Korean Research Society for Dental Materials
1993 Volume.20 No. 2 p.177 ~ p.186
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Studies on the Polymerization Contraction Forces and the Bonding Behavior of Composite Resins (Part 2. Bond Strength)
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최부병
박남수/최대균/우이형/임호남
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Abstract
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Failure of bond between resinous restorative materials and tooth can be occured by the polymerization contraction forces larger than bond strengths. This study was planned to confirmed that the bond strengths between composite resin and acid
etched
enamel will be influenced by the polymerization contraction forces altered with filler contents and diameter of attached resin specimens. Ten kinds of experimental composite resins were aprepared and bonded to bovine tooth enamel which were
acid-etched.
The diameter of resin specimens attached were 4mm and 6mm.
@ES The following conclusions were drawn:
@EN 1. Shear bond strengths were increased and then decreased with rise of filler contents, maximum shear bond strength was obtained by the 40% filled composite resin.
2. Unit shear bond strengths of resin specimens bonded with large area were lower than that of narrow area bonding.
It was concluded that shear bond strengths to acid etched enamel can be influenced by the polymerization contraction forces.
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KEYWORD
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