Vorrichtung zur Ultraschallbearbeitung von Werkstoffen in schwer zugänglichen Bereichen und Verfahren zur Präparation von Zahn- und Knochenmaterialien

摘要

A device for the ultrasonic preparation of hard or soft tissues and tissue replacement materials has a handpiece (10) comprising and ultrasonic vibration generator (16), an ultrasonic deflection head (28) and a tool (30) supported by the output part of the latter. An abrasive treatment medium (48) is fed to the region of contact between the tool (30) and the material to be prepared (66). In this way, cavities can be made, precisely and without damage, in tooth or bone tissue, even at sites difficult of access.