To provide a denture stabilizer which has good cushioning property and can continue to be used for a long time with comfortable use feeling.SOLUTION: The denture stabilizer 3 is formed by molding the oblate 30 as a material into the shape of the contact surface of all the floor denture 4 for the lower jaw. After all of this denture stabilizer is adhered to the contact surface of the denture base, when all the floor denture is worn in the mouth, all the floor denture is fixed to the mandible via the denture stabilizer.(FIG.【課題】クッション性が良好であり、快適な使い心地のまま長い間使い続けることが出来る義歯安定剤を提供する。【解決手段】オブラート30を材料として下顎用の全部床義歯4の接触面の形状に成形して義歯安定剤3とした。この義歯安定剤を全部床義歯の接触面に粘着させた後、全部床義歯を口内に装着すると、全部床義歯は義歯安定剤を介して下顎に固定される。【選択図】図2