Application of Functional Monomers for Dental Use(Part 7) : Synthesis of Alkylene Glycol Monomethacrylates with Different Lengths of Alkylene Group and Their Adhesion to the Unetched Tooth Structure

Abstract

In order to improve the adhesion of dental resins to the tooth structure, six kinds of alkylene glycol monomethacrylate with different lengths of alkylene group(n=3-10)were synthesized for use as diluent, and the relations between structure of these monomers and their physical properties were investigated.1)The coefficient of viscosity and contact angle of water increased but polymerization shrinkage and amounts of water sorption decreased with increasing carbon atoms in alkylene group.2)The adhesive strength to the unetched bovine enamel and dentin after standing at room temperature for 3 hrs increased but after soaking in water at 37℃ for 1 day decreased with increasing carbon atoms in alkylene group.