30-year life span of a spring cantilever bridge: case report

Authors

  • J.L. Lui Department of Conservative Dentistry Faculty of Dentistry University of Malaya 50603 Kuala Lumpur Malaysia

DOI:

https://doi.org/10.22452/adum.vol15no1.8

Keywords:

spring cantilever bridge, life span, serviceability, bridge fracture, metal fatigue

Abstract

Besides other indications, the spring cantilever bridge can solve the difficult clinical problem of providing diastema on either side of a pontic. Unlike the conventional bridges, it has a somewhat controversial design in that the anterior pontic is connected to its retainer on a posterior abutment by a relatively long flexible palatal bar. This paper presents a case report of a spring bridge which fractured due to metal fatigue after 30 years of continued service. Other studies reported a mean life span of 8-10 years for conventional bridges. The advantages of the spring cantilever bridge are also discussed.

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Published

2008-06-30

Issue

Vol. 15 No. 1 (2008)

Section

Case Report

License

  1. The Faculty of Dentistry, Universiti Malaya holds the copyright of the published manuscript including all its components such as supplementary information, graphical contents and raw data without any restrictions.
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  3. After acceptance for publication in Ann Dent UM, the author(s) have the right to use any of its components in whole or in part for academic purposes such as, presentation in scientific conferences and seminars.