Journal of Dental Research, Vol 71, 1822-1825, Copyright © 1992 by International & American Associations for Dental Research Online Journals

ARTICLES

A seven-and-a-half-year survival study of resin-bonded bridges

N. H. Creugers, A. F. Kayser and M. A. Van't Hof
TRIKON, Department of Oral Function and Prosthetic Dentistry, Nijmegen, The Netherlands.

A clinical trial, concerning 203 resin-bonded bridges (RBBs), was performed for investigation of the influence of retainer-type and cementation materials on the survival of these restorations. The survival rates after a 7.5-year follow-up were 75% for anterior RBBs and 44% for posterior bridges. Etched metal RBBs (E-bridges) were significantly more retentive than perforated RBBs (P-bridges); the survival rates were 78% and 63%, respectively. With respect to the cementation materials, Clearfil F, in combination with E-bridges, had the best overall survival (89%, anterior and posterior). Maxillary anterior RBBs were more susceptible to failure than mandibular anterior RBBs.

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