PROBLEM TO BE SOLVED: To suppress unevenness in agitation materials after agitation even when only a small amount of the material is in an agitation vessel.SOLUTION: An agitation blade 50 for rotationally agitating materials in an agitation device for dental technique, includes: an upper edge part 512 to which an agitation axis 11 is connected and a lower edge part 513 opposite to the upper edge part 512. The agitation blade 50 further includes: a periphery part 51 surrounding a predetermined region on a plane parallel to the agitation axis 11 and two side parts 521 extending so as to be apart from each other from the lower edge part 513 side towards the upper edge part 512 side of the periphery part 51.SELECTED DRAWING: Figure 5COPYRIGHT: (C)2016,JPO&INPIT【課題】攪拌容器内の被攪拌材料が少量である場合に、攪拌後の被攪拌材料にムラが生じることを抑制する。【解決手段】攪拌羽根50は、歯科技工用攪拌装置において回転しながら被攪拌材料を攪拌する攪拌羽根50であって、攪拌軸11が接続される上縁部512と、上縁部512に対向する下縁部513とを有し、攪拌軸11に平行な面において所定の領域を囲む周縁部51と、周縁部51の下縁部513側から上縁部512側に向かうに従い互いの距離が大きくなるように延びる2つの辺部521とを備える。【選択図】図5