Residual monomer in denture base acrylic resin cured by microwave energy for different periods in comparison with conventional method

ABSTRACT

In this investigation, infra red spectrophotometer was used to study the level of residual monomer in denture base acrylic resin cured by microwave energy for different periods[6,IO,I4 minutes] in comparison with that cured by conventional water bath method. The results of this study indicated that the level of residual monomer decreased with increase of microwave curing time. It was minimal when the total time was I4 minutes and was maximal when the time was 6 minutes. On the other hand, the residual mon-omer content of the acrylic resin cured by conventional method was higher than that cured by microwave energy for I4 minutes and lower than those cured for 1o and 6 minutes