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1 Department of Prosthetics, University of Manchester, England
1. The detection and estimation of residual methyl methacrylate in polymethyl methacrylate has been achieved by physical and chemical methods.
2. A qualitative method in which the aqueous extract of the denture base is tested using a potassium permanganate reagent has been developed.
3. The best quantitative method was found to be a bromination procedure, a method using infrared absorption spectra proving less accurate.
4. The consequences of preliminary results obtained with these methods are briefly discussed.
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