Stress analysis of four‐unit fixed bridges on abutment teeth with reduced periodontal support

H. E. LEE, C. H. WANG, G. L. CHANG, T. Y. CHEN

Research output: Contribution to journalArticle

3 Citations (Scopus)

Abstract

summary The variable properties of photoelastic models and the difficulty of fabrication of the model limit experimental designs. The ‘material fringe value’ is introduced into the definition of the ‘stress concentration index’ by multiplying the fringe orders. Three levels of periodontal support in three photoelastic models (nine cases) were com‐pared quantitatively by determining the stress concentration induced in periodontium by point loading vertically on a span of the fixed partial denture of four units length. The results indicate that comparison among photoelastic models is possible and useful. The stress concentration effects produced by the second molar were more prominent and determinant than that by the first premolar in the periodontium of the abutments.

Original languageEnglish
Pages (from-to)705-710
Number of pages6
JournalJournal of Oral Rehabilitation
Volume22
Issue number9
DOIs
Publication statusPublished - 1995 Sep

All Science Journal Classification (ASJC) codes

  • Dentistry(all)

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