A denture material

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PROBLEM TO BE SOLVED : To provide a novel dental prosthesis stabilizer using a vinyl acetate resin as a principal base.SOLUTION : A composition for the dental prothesis stabilizer includes a vinyl acetate resin, and acetyl derivative of glycerin. In the dental prothesis stabilizer, the acetyl derivative of glycerin is a group expressed by the following structural formula (1) : [in the formula (1), R, R, and Rare same or different, are a group expressed by a hydrogen atom and an acetyl group, or a formula : RCO- (Ris an organic group with the carbon number 2-30). Where, at least one of R, R, and Ris the acetyl group, and at least one of R, R, and Rhas a formula : RCO-].