PROBLEM TO BE SOLVED: To provide a blade for trituration of a vacuum agitator for dental craftsman, performing agitation and trituration of mixing materials such as implant, gypsum or impression material in dental surgery under reduced pressure without uneven kneading.SOLUTION: In the agitator, materials blown up to an outside upper part by centrifugal force are moved downward by a return piece and incorporated by a trituration blade side edge in agitation and trituration. In the structure, a central staircase-like hole 7 is provided to thereby prevent powder and liquid such as implant from adhering to the central part of the trituration blade, so that uneven kneading is reduced. The blade for trituration is used to hold down uneven kneading to the minimum, so that kneading can be performed to hardly affect curing of contents.COPYRIGHT: (C)2010,JPO&INPIT【課題】歯科における埋没材、石こう、印象材等の撹拌材料を減圧下で攪拌練和する練りムラのない歯科技工用真空撹拌攪拌器の練和用ハネを提供する。【解決手段】撹拌練和時に遠心力によって外側上部に吹き上げられる材料を返し片で下方に移動させ、練和ハネ側辺縁部で練りこむ構造となっているが、中央部階段状孔7を設けることにより、練和用ハネの中央部に埋没材等の粉や液が付着することがなくなり、練りムラが減少する。本発明の練和用ハネを用いれば、混練ムラを最小限に抑えることができ、内容物の硬化に影響をほとんど与えない程度まで混練が可能である。【選択図】図5
