Abstract: An implement for extraction of bridges from the mouth of dental patients has a flexible wire engageable with a bridge at a distance from the edge of the bridge and at a distance from the gums of the patient, and a force applying unit which can pull the wire in a direction to lift the bridge off the respective teeth. The wire can engage the connector or connectors between neighboring crowns of a bridge and then be locked in the force applying unit.

Abstract: A dental apparatus provided with a drive unit for operative dentistry instruments, specifically a powered system for performing the various phases of operative dentistry operations. This advanced dental apparatus is essentially characterized in that the working tool housed in a tool-holder sleeve, exhibits dampable, disengageable, reciprocating helical motion using a flexible cam. The cam is mounted on the rotational axis and its end is received in a hole in the sleeve. This device allows completely safe operative dentistry operations to be performed, while preventing false canals and instrument breakage, through the use of the flexible movement control device.