Characterization of Heat-Polymerized Monomer Formulations for Dental Infiltrated Ceramic Networks

(1) Objectives: This work examined properties of dental monomer formulations an aromatic dimethacylate (BisGMA), aliphatic urethane dimethacrylate (UDMA), and triethylene glycol (TEGDMA). The monomers were combined in different ratio heat-polymerized containing the initiator benzoyl peroxide (BPO) specifically for purpose infiltration into polymer-infiltrated composite structures. (2) Methods: weight ratios underwent rheological analysis (viscosity temperature dependence), degree conversion, mechanical (elastic modulus, hardness, fracture toughness). (3) Results: Rheological showed Newtonian behavior with a large dependence on temperature. addition BPO allowed gelation range 72.0–75.9 °C. Degree conversion was found between 74% 87% DC, unaffected by increase TEGDMA (up to 70 wt%). Elastic toughness inversely proportional TEGDMA. modulus hardness slightly increased UDMA versus BisGMA formulations, while ranged 0.26 0.93 MPa·m0.5 UDMA- 0.18 0.68 BisGMA-based formulations. (4) Significance: Heat-polymerization allows greater based viscosity when selecting infiltrated Therefore, selection should be properties. measured data reduced at higher UDMA:TEGDMA favor such over BisGMA:TEGDMA mixtures.