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The International Journal of Prosthodontics

Edited by George A. Zarb, BChD, DDS, MS, MS, FRCD(C)

ISSN 0893-2174

July/August 1995
Volume 8 , Issue 4

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An Investigation of Preferable Taper and Thickness Ratios for Cast Circumferential Clasp Arms Using Finite Element Analysis


Pages: 392-397
PMID: 7575981

This study used a two-dimensional finite element method to the preferred design for a cast circumferential clasp. Finite element models of the clasp arm with the constant flexibility were constructed, the stress was calculated, and the effects of taper and cross-sectional shape on stress were evaluated. The clasp arm with the taper of 0.8 showed less stress than those with other tapers, and the thinner and wider arms showed less stress than thosse with other cross-sectional dimensions. These results suggest that the use of the preformed clasp-pattern with a taper of 0.8 is preferable for reducing fatigue and/or permanent deformation of the clasp arm. e t a g i t s e v n i

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