PROBLEM TO BE SOLVED: To provide antimicrobial activity recovery methods of dental compositions containing antimicrobial layer silicate as a component, and to provide dental compositions in which antimicrobial activity has recovered by the methods, as well as to provide preparation methods of dental compositions in which antimicrobial activity has recovered, and to provide dental compositions obtained by the methods.SOLUTION: The invention provides a method for recovering antimicrobial activity of a dental composition, wherein the dental composition which contains antimicrobial layer silicate carrying an antimicrobial agent, and in which antimicrobial activity is lowered by the elution of the antimicrobial agent, is immersed into the solution containing the antimicrobial agent.SELECTED DRAWING: NoneCOPYRIGHT: (C)2016,JPO&INPIT【課題】抗菌性層状ケイ酸塩を構成成分とする歯科用組成物の抗菌活性回復方法及び該方法により抗菌活性の回復した歯科用組成物、ならびに抗菌活性の回復した歯科用組成物の調製方法及び該方法により得られた歯科用組成物を提供すること。【解決手段】抗菌剤を担持させた抗菌性層状ケイ酸塩を含有してなる歯科用組成物であって、抗菌剤の溶出により抗菌活性の低下した歯科用組成物を、前記抗菌剤を含む溶液中に浸漬することを特徴とする、歯科用組成物の抗菌活性回復方法。【選択図】なし
