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An overview of the O-ring implant overdenture attachment: clinical reports
Sheldon Winkler1, Jack Piermatti, Amy Rothman
1Temple University School of Dentistry, 3223 North Broad Street, Philadelphia, PA 19140-5096, USA.
The Journal of Oral Implantology
|December 25, 2002
Abstract:
The O-ring is used to increase retention of implant complete and partial overdenture prostheses. They possess a number of advantages, including ease of use and maintenance, low cost, and possible elimination of a superstructure bar. O-rings wear over time, gradually lose retention, and must be replaced periodically. It is essential that O-ring abutments be parallel to each other. Two cases are presented showing the use of O-rings with a complete mandibular implant overdenture and a maxillary removable partial denture.