A photoelastic study of stress distribution by a mandibular split major connector

This investigation evaluated the stress patterns in a photoelastic model produced by three different mandibular major connectors. The results were as follows. There were minimal differences in stress generated by the rigid and the short split frameworks. When the split extended to the midline, the s...

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Bibliographic Details
Published inThe Journal of prosthetic dentistry Vol. 54; no. 2; pp. 220 - 225
Main Authors Reitz, Phillip V., Caputo, Angelo A.
Format Journal Article
LanguageEnglish
Published United States Mosby, Inc 01.08.1985
Subjects
Dental Abutments
Dental Stress Analysis
Dentistry
Denture Bases
Denture Design
Denture, Partial, Removable
Humans
Models, Anatomic
Stress, Mechanical
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Summary:This investigation evaluated the stress patterns in a photoelastic model produced by three different mandibular major connectors. The results were as follows. There were minimal differences in stress generated by the rigid and the short split frameworks. When the split extended to the midline, the stress on the distal-extension abutment was in a more vertical direction and decreased in magnitude. The stress in the edentulous portion of the distal-extension side was increased with the long split when force was applied. When force was applied to the tooth-supported side of the removable partial denture, the difference in stress among the three frameworks was insignificant. The long split major connector is a viable, inexpensive alternative to manufactured stress breakers for distal-extension removable partial dentures.
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ISSN:0022-3913
1097-6841
DOI:10.1016/0022-3913(85)90292-6