Provided is an abrasive tip with which a tip, a curette, or the like can be readily sharpened by anyone without requiring skill gained through experience. Provided is a shaft (2) that is detachably attached to an end of a handpiece of a dental ultrasonic scaler or a dental air scaler, and a flat plate (3) extending continuously from an end of the shaft (2) and having a top surface (9), a bottom surface, two side surfaces (11), and a front surface (12). An abrasive is fixed to the top surface (9), the bottom surface (10), the two side surfaces (11), and the front surface (12) by electrodeposition or sintering
