| 摘要 |
<p>A dental hand instrument consisting of a body (1) destined to be coupled at one end with a cover (14) and at the other end with an electrical and hydraulic connector (4); inside said body is positioned a transducer (2) destined to vibrate a workpiece (10) that effects removal of tartar and plaque from the tooth surface, wherein the power supply of the light source of the hand instrument is taken from the power supply of the transducer (2). <IMAGE></p> |
