Pier assembling screw unscrewing prevention device for dental implant, has assembling screw with outer thread screwed in implant and inner thread receiving another screw with structure immobilized in cement or sealing or bonding material

摘要

The device has a pier (100) with a part (101) destined to a cement, a sealing material or a bonding material (400) and a part (102) corresponding to a zone for reception of a pier assembling screw (200). The screw (200) has an inner thread (201) for receiving a screw (300) and an outer thread (202) for being screwed in a dental implant. The screw (300) has an outer thread (301) for being screwed in the screw (200) and a structure (302) immobilized in the cement or the sealing or bonding material. Upper parts of the screws (200, 300) comprise a structure utilized by a maneuver instrument.