Dental instrument fixing device, has tightening-loosening unit with belt and force exerting part to exert loosening forces for canceling tightening forces in order to release dental instrument

摘要

The device has a tightening-loosening unit composed of a belt (25) in deformable and elastic material. A part of the unit has a section to engage in an annular groove. The section is provided in the upper part of a dental instrument (5) to maintain the instrument by tightening forces. The unit has a force exerting part to exert loosening forces for canceling the tightening forces in order to release the instrument.