A basic study on visible light-curing resin as a denture base. VI. Use as a trial relining material

The authors have conducted a series of basic studies on the clinical application of visible light-curing denture base resin manufactured by Dentsply Co.The results obtained confirmed that the fundamental physical properties of this resin almost matched those of heat-curing resin.Dentsply has recently marketed a relining material of this type, which has a viscosity coefficient a little lower than that of Dentsply-made denture base resin. We consider that further efforts should be made to lower the coefficient of viscosity if the material is to have better usability and relining maneuverability. Also, this resin has drawbacks such as bitterness or an amine-like smell before curing.The authors therefore tried to make a relining material free from these faults, using cyclophosphazene monomer (4 PN- (TF) 2- (EMA) 6).In this trial, it was shown to be possible to make a relining material well suited for clinical use, being tasteless and odorless with a lower viscosity coefficient and greater liquidity.