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Journal of Dental Research
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Clinical

Time to Survival for the Restoration of the Shortened Lower Dental Arch

J.M. Thomason1,*, P.J. Moynihan1, N. Steen2 and N.J.A. Jepson1

1 School of Dental Sciences and
2 Centre for Health Services Research, University of Newcastle upon Tyne, Framlington Place, Newcastle upon Tyne NE2 4BW, UK

Correspondence: * corresponding author, j.m.thomason{at}ncl.ac.uk

Removable partial dentures may adversely affect remaining tissues and have a low prevalence of use. This randomized controlled trial was designed to compare the time to survival of cantilever resin-bonded fixed partial dentures and conventional removable partial dentures to restore shortened lower dental arches. We randomly allocated 25 male and 35 female patients (median age, 67 years) to fixed or removable partial denture groups of 30 persons, matched for age and sex. Survival of the prostheses was assessed, based on listed criteria, at each review or when problems arose. Although the removable partial denture group required rather more maintenance visits, the difference in survival rates was not statistically significant (hazard ratio = 0.59, with 95% CI 0.27, 1.29). In the absence of significant differences in five-year survival, the reported advantages of fixed partial dentures, including reduced maintenance frequency, offer positive support for the use of resin-bonded fixed partial dentures.

Key Words: denture • partial fixed • resin-bonded • removable • randomized clinical trial • survival

Journal of Dental Research, Vol. 86, No. 7, 646-650 (2007)
DOI: 10.1177/154405910708600712
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