Ester-free thiol-ene dental restoratives--Part B: Composite development.

ABSTRACT:

Objectives

To assess the performance of thiol-ene dental composites based on selected ester-free thiol-ene formulations. Further, to point out the benefits/drawback of having a hydrolytically stable thiol-ene matrix within a glass filled composite.

Methods

Composite samples containing 50-65wt% of functionalized glass microparticles were prepared and photopolymerized in the presence of a suitable visible light photoinitiator. Shrinkage stress measurements were conducted as a function of the irradiation time. Degrees of conversion were measured by FT-IR analysis by comparing the double bond signals before and after photopolymerization. Mechanical tests were carried out on specimens after curing as well as after extended aging in water. Dynamic mechanical analysis was employed

SUBMITTER: Podgorski M 

PROVIDER: S-EPMC4617615 | biostudies-literature | 2015 Nov

REPOSITORIES: biostudies-literature