| 摘要 |
<p>A photopolymerizable epoxy-monomer, preferably 3,4-epoxycyclohexyl-methyl-3,4-epoxy-cyclohexane-carboxylate or bis-(3,4-epoxycyclohexyl-adipate) is included in photo-hardening compositions, preferably for dental use. The compositions exhibit no hardening shrinkage, or very little hardening shrinkage, and high mechanical strength.</p> |
