< Topic >In with who simply, at the same time, try to be able check the abrasion loss accurately. SolutionsBeing the worn checker of the tip/chip for dentistry which in the point of the hand piece of the ultrasonic scaler for dentistry and the air scaler for dentistry the tip/chip for the scaler which installation and removal unrestrictedly is installed, in the point of the hand piece of electromotive type bone operation appliance checks the abrasion loss of the tip/chip and the like which installation and removal unrestrictedly is installed in the point of handle, such as the tip/chip which installation and removal unrestrictedly is installed and the curette which removes the dental calculus which mainly has been attached to the part of the root of the tooth and the part which it is difficult to polish consists of the component of flat condition, at least in front 11the side of tip/chip 12,13 for dentistry of 1 types and, tips/chips 12,13 for these dentistryAt least 1 where it becomes standard of the abrasion loss these lines 14 and, is drawn, to the bottom of front 11a, as it extends according to cross direction, with the straight line which forms two surface width of tip/chip 12,13 for the aforementioned dentistry features that 1 where it is located on the identical line these base point lines 15 are drawn at least. < Selective figure >Figure 1【課題】誰にでも簡単に、かつ、正確に摩耗量をチェックすることができるようにすること。【解決手段】歯科用超音波スケーラや歯科用エアスケーラのハンドピースの先端部に着脱自在に装着されるスケーラ用チップ、電動式骨手術器械のハンドピースの先端部に着脱自在に装着されるチップ、主に歯の根の部分や磨きにくい部分についている歯石を取り除くキュレット等の柄の先端部に着脱自在に装着されるチップ等の摩耗量をチェックする、平板状の部材からなる歯科用チップの摩耗チェッカーであって、正面11aには、少なくとも1種類の歯科用チップ12,13の側面と、これら歯科用チップ12,13の摩耗量の目安となる少なくとも1本の線14と、が描かれており、正面11aの下端部には、横方向に沿って延びるとともに、前記歯科用チップ12,13の二面幅を形成する直線と同一線上に位置する少なくとも1本の基準線15が描かれていることを特徴とする。【選択図】図1
