Effect of 4-META/MMA-TBB Resin Containing Calcium Chloride Dihydrate on Dentin Remineralization and Its Mechanical Properties

抄録

The purpose of this study were to examine the effect of 4-META/MMA-TBB resin containing calcium chloride dihydrate (CaCl₂) on dentin remineralization and its mechanical properties. Different percentages of CaCl₂ (5%, 10%, and 30%) were added to 4-META/MMA-TBB resin. The Ca²⁺ released from CaCl₂ bound to the phosphoprotein formed hydroxyapatite crystals to initiate dentin remineralization in 5%, 10% and 30% CaCl₂ groups in vitro dentin mineralization system. Mineral induction time decreased with increasing of CaCl₂ concentration in the resin. Vickers hardness and bending strength of 5% CaCl₂ group were significantly higher than other groups. The results of elasticity analysis for the control, 5% and 10% CaCl₂ groups showed no significant difference, and the viscosity analysis showed no significant difference between 4-META/MMA-TBB resin with up to 10% CaCl₂ and the control.

The 4-META/MMA-TBB resin with 5% CaCl₂ showed dentin remineralization activity with good mechanical properties.