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KMID : 0362219940210010065
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Journal of The Korean Research Society for Dental Materials
1994 Volume.21 No. 1 p.65 ~ p.79
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A STUDY ON THE INFLUENCES OF CALCIUM SOLUTION TREATMENT OF DENTIN ON THE BOND STRENGTHS OF GLASS LONOMER CEMENTS.
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Abstract
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Bond strengths of glass ionomer cements using polyacrylic acid could be increasd if the inorganic contents of dentin will be increased. This study was designed to confirm the increase of bond strengths of glass ionomer cements on the dentin
surfaces of
which inorganic contents were increased by the pretreatment using calcium solutions. Glass ionomer cements were classified and selected as a chemical curing luting cement, a chemical curing filling cement, and a lignt curing lining cement.
Calcium
solutions for the pretreatment of dentin were ITS solution and CaCl2 solution, distilled water was used as pretreatment agent for the control groups of each cements. Bond strengths between cements and dentin were measured with shear bond
measurement
method at 24 hours after the bonding.
By the pretreatment of calcium solutions the bond strengths of chemical curing glass ionmer cements were increased, however the bond strengths of light curing glass ionomer cements were decreased. On the dentin surfaces treated with distilled
water,
light curing glass ionomer cements showed the higher bond strengths than that of chemical curing glass ionomer cements. The bond strengths of chemical curing glass ionomer cements obtained on the dentin treated with calcium solutions exceeded the
bond
strengths of light curing glass ionomer cements.
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