Dentistry – Prosthodontics – Holding or positioning denture in mouth
Reexamination Certificate
2005-08-02
2005-08-02
O'Connor, Cary E. (Department: 3732)
Dentistry
Prosthodontics
Holding or positioning denture in mouth
Reexamination Certificate
active
06923648
ABSTRACT:
An endosseous dental implant fastening system is provided with a fastening screw that is configured to prevent complete disengagement of the fastening screw from a screw extraction tool during removal of the screw from threaded engagement with the implant and abutment members. A fastening screw is modified from conventional construction by providing the mouth of the socket in the head of the screw that is utilized to rotate the screw with left-hand threads, and to provide an installation and removal tool with a shank having corresponding left-hand threads at it distal tip. Counterclockwise rotation of the installation and removal tool relative to the fastening screw causes the distal tip of the installation and removal tool to advance into engagement with the left-hand threads defined in the socket of the fastening screw. The fastening screw is thereby temporarily attached to the installation and removal tool during installation and removal of the fastening screw.
REFERENCES:
patent: 680560 (1901-08-01), Barnes
patent: 4579531 (1986-04-01), Hinks
patent: 4995810 (1991-02-01), Soderberg
patent: 5513545 (1996-05-01), George
patent: 5571015 (1996-11-01), Siegmund
patent: 5591029 (1997-01-01), Zuest
Sulzer Medica, Sulzer Dental Inc., Price List & Ordering Information; 2001, cover and p. 9.
DiamoDent Restorative Catalog, Fourth Edition May 2002 Cover and pp 2, 3&4, 7&8, 9&10.
Advent and Screw-Vent Implant Systems, Technical Information and Product Catalog, Paragon, Implant Co., Mar., 2000, Cover and pp. 2, 4, 5, 15.
Taper-Lock External Hex System, Product Selection Guide and Catalog, Paragon Implant Co., Feb. 1998, Cover and pp 13, 15.
O'Connor Cary E.
Thomas Charles H.
LandOfFree
Dental implant fastener system does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Dental implant fastener system, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Dental implant fastener system will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-3489651