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The survival rate of bridges. A study of 1674 bridges in 40 Dutch general practices
P J Leempoel1, A F Käyser, G M Van Rossum
1Department of Oral Function and Prosthetic Dentistry, University of Nijmegen, The Netherlands.
Abstract:
The survival rate of 1674 bridges and the influence of several factors on the lifetime of bridges were analysed, based on data from patient records that belonged to a random sample of 40 Dutch general practices. It appears that the 12 year survival rate of the bridges is 87%. There is a significant difference in the survival rate between the bridges that meet and do not meet Ante's law, and only a weak significant difference between the bridges with vital vs. non-vital abutment teeth. Gender and age of the patient, length of the bridge, presence of a post and core build-up, or the construction of the bridge (conventional fixed vs. cantilever pontic) appear to have no influence on the survival rate of the bridges in this sample.