Polymerizable thioureas as innovative reducing agents for self-cured and dual-cured dental materials.

Objective: To evaluate polymerizable acylthioureas as reducing agents in two-component dental materials.

Methods: Acylthioureas 1 and 2 were synthesized and characterized by H and C NMR spectroscopy. Self-cured composites based on the redox initiator system cumene hydroperoxide/acylthiourea 1 or 2/copper(II) acetylacetonate were formulated.