The present invention relates to a device for sharpening one or more cutting edges (51) of a dental curette (50). It has a base support (2), on which there is articulated a frame (3), and at least one sharpening guide (4, 40). Said frame (3) supports a grinding wheel (14) rotationally driven by a motor (8) and a sharpening guide support (7) intended to receive the sharpening guide(s) (4, 40). The guide (4, 40) comprises at least one indicator (25) in the form of a line marked on said guide (4, 40), the angle of which with the horizontal being between 10° and 50° but preferably equal to 10°, 20° or 30° and corresponding to the type of dental curette (50) to be sharpened. The sharpening guide(s) (4, 40) can move with respect to said support (7), and said support (7) and/or said guide (4, 40) comprise(s) indexing and positioning means (21, 41, 48) determining indexing positions of the guide (4, 40) on the support (7), each indexing position corresponding to a different indicator (25). The present invention also relates to a method of sharpening one or more cutting edges (51) of a dental curette (50) implemented using said device, as well as a sharpening guide for the implementation of said method.La présente invention porte sur un dispositif pour aiguiser un ou plusieurs bords de coupe (51) dune curette dentaire (50). Le dispositif a un support de base (2), sur lequel est articulé un cadre (3), et au moins un guide daiguisage (4, 40). Ledit cadre (3) supporte une meule (14) entraînée en rotation par un moteur (8) et un support de guidage daiguisage (7) destiné à recevoir le ou les guides daiguisage (4, 40). Le guide (4, 40) comprend au moins un indicateur (25) sous la forme dune ligne marquée sur ledit guide (4, 40), dont langle avec lhorizontale se situe entre 10° et 50° mais est de préférence égal à 10°, 20° ou 30°, et correspondant au type de curette dentaire (50) devant être aiguisée. Le ou les guides daiguisage (4, 40) peuvent se déplacer par rapport audit support
