Abstract
The heat-curing base resins cured by microwave heating and cured in a water bath or in a hot press were investigated on the surface roughness and the mold releasing property.The degree of the surface roughness of the base resins cured on the dental plaster mold by microwave heating was less about one-third than that of the resin cured in a water bath or in a hot pree.Further, the bonding strength between the dental plaster mold and the resin cured by microwave heating was approximately equal to two-thirds mold releasing strength between the dental plaster mold and the resin cured in a water bath.The surface of the resin cured by microwave heating was smoother than that of the resin cured in a water bath or in a hot press.Therefore, the specimen cured by microwave heating was easier to separate into the dental plaster mold and the cured resin than that cured in a water bath.Compared with the resin cured in a water bath or in a hot press, the resin cured by microwave heating had several advantages on surface roughness.