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Clinical experiences for the past 9 years have demonstrated the practicability of the O-ring coping attachment, a modification of the telescopic crown-and-sleeve coping retainers, for removable partial dentures. A circumferential groove placed in the primary coping receives an elastomeric O-ring that fits into a corresponding groove made in the internal surface of the telescopic crown. The O-ring not only provides controllable retention but also acts as a shock absorber. Long-term retention of the prostheses can be easily maintained by periodic replacements of the O-rings. Sophisticated procedures and expensive machines are not required to make the prostheses. Excellent patient acceptance and the versatility in clinical applications make this system one of the winning designs for removable partial prosthodontics.
M W Lee, and
L Baum, and
B Pence, and
W Hererra
March 1967,
The Journal of prosthetic dentistry,
M W Lee, and
L Baum, and
B Pence, and
W Hererra
June 2003,
Nederlands tijdschrift voor tandheelkunde,
M W Lee, and
L Baum, and
B Pence, and
W Hererra
March 2000,
The Journal of the Michigan Dental Association,
M W Lee, and
L Baum, and
B Pence, and
W Hererra
January 1979,
Archivio stomatologico,
M W Lee, and
L Baum, and
B Pence, and
W Hererra
December 1992,
Australian dental journal,
M W Lee, and
L Baum, and
B Pence, and
W Hererra
January 1982,
Minerva stomatologica,
M W Lee, and
L Baum, and
B Pence, and
W Hererra
January 1985,
Dental clinics of North America,
M W Lee, and
L Baum, and
B Pence, and
W Hererra
January 1989,
The International journal of prosthodontics,
M W Lee, and
L Baum, and
B Pence, and
W Hererra
January 1992,
Illinois dental journal,
M W Lee, and
L Baum, and
B Pence, and
W Hererra
January 1985,
Dental clinics of North America,
