Journal of Oral Tissue Engineering

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

Nahid Al Nomann1, Shuichi Ito2, Md Riasat Hasan1,
Youjing Qiu1, and Takashi Saito1

1Division of Clinical Cariology and Endodontology, Department of Oral Rehabilitation,
2Division of Development of Dental Education,
Department of Integrated Dental Education, School of Dentistry,
Health Sciences University of Hokkaido, Hokkaido, Japan

J Oral Tissue Engin 2019; 17(2): 43-52.

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.

Key words: 4-META/MMA-TBB resin, CaCl2, dentin remineralization, mechanical properties, bio-active material

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