PROBLEM TO BE SOLVED: To provide a dental material malaxation method and a dental material malaxation device which have no bad influence on a human body caused by flying of powder, no fluctuation in the quality caused by the difference in the skill of operators, and no mixing of air bubbles during agitation, and is easy to disposal processing of an excess material.SOLUTION: A powder material P and a liquid W, separately stored by a predetermined ratio in two or more storing parts 1a and 1b provided dividedly in one outer bag 1, are out into the outer bag and mixed by opening the division of the outer bag, and the mixed powder material P and the liquid W are kneaded in the outer container to make a pasty material. In another embodiment, the powder material and the liquid, separately stored by the predetermined ratio in one outer container and in an inner container stored therein, are mixed by breaking the inner container and taking out the powder material or the liquid into the outer container, and the mixed powder material and liquid is kneaded in the outer container to make it into a pasty material.COPYRIGHT: (C)2014,JPO&INPIT【課題】粉末の飛散による人体への悪影響も、作業者の熟練度の差による品質のバラツキも、撹拌時の気泡の混入もなく、余剰材料の廃棄処理も容易な歯科用材料練和方法と歯科用材料練和用具を提供する。【解決手段】一つの外袋1内に区画されて設けられた二つ以上の収容部1a、1b内に、所定比率で別々に収容されている粉末材料Pと液体Wを、外袋の前記区画を開放して外袋内に出して混合させ、混合した粉末材料Pと液体Wを当該外容器内で練和してペースト状にする。他の実施方法としては、一つの外容器内とその内部に収容された内容器内に所定比率で別々に収容されている粉末材料と液体を、内容器を破損させて内容器内の粉末材料又は液体を外容器内に出すことにより混合させ、混合した粉末材料と液体を外容器内で練和してペースト状にする。【選択図】図1