歯科用義歯床材料並びにコンボジットレジンよりの毒性化合物の溶出について

概要

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Dental plate of Yunifast and Acron from polymethylmethacrylate, that of polysulfone and polycarbonate and composite resin of Clearafil were extracted with water, serum and several kind of organic solvents. Eluted amount and time course elution of several components and residual monomers were studied. As a result, solvent polarity, swelling capacity and hardness of dental material will be considered to determine the elution amount. In general more elution can be observed from more pliant material and more elution from more hydrophobic solvent. Significant difference betwoon water and serum elution was observed and more elution was from serum extraction. Hydrophobic compound was also extracted with serum. Furthermore, when contacting benzoylperoxide (BPO) with serum or saliva, BPO changed into benzoic acid (BA) immediately. If this finding was overlooked, data was not correct.
1994-08-01