Dental percussion instrument

摘要

The invention relates to a dental percussion instrument having an instrument housing (1) designed as a handpiece in which a ram (2) is mounted so as to be axially movable and on one end of which there is located a testing head (5) which contains an acceleration sensor (22) in the form of one or more piezoelectric elements in the form of small plates. For improvement of the efficiency it is proposed that an impinging body (21, 35, 38) which is held in a reception sleeve (20) and is rotationally symmetrical to the shaft of the ram be provided, the body having a spherical surface at least on the side facing the object being tested and resting against the acceleration sensor (22) on a spot on the opposite side. <IMAGE>