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The Effect of Select Pulp Cavity Conditions on Stress Field Development in Distal Abutments in Two Types of Fixed Dental Prostheses

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dc.contributor.author Manda, M en
dc.contributor.author Galanis, C en
dc.contributor.author Venetsanos, D en
dc.contributor.author Provatidis, C en
dc.contributor.author Koidis, P en
dc.date.accessioned 2014-03-01T02:07:08Z
dc.date.available 2014-03-01T02:07:08Z
dc.date.issued 2011 en
dc.identifier.issn 0893-2174 en
dc.identifier.uri https://dspace.lib.ntua.gr/xmlui/handle/123456789/29520
dc.subject.classification Dentistry, Oral Surgery & Medicine en
dc.subject.other FINITE-ELEMENT-ANALYSIS en
dc.subject.other ENDODONTICALLY TREATED TEETH en
dc.subject.other REDUCED BONE SUPPORT en
dc.subject.other OF-THE-LITERATURE en
dc.subject.other BIOMECHANICAL CONSIDERATIONS en
dc.subject.other PARTIAL DENTURES en
dc.subject.other RESTORED TOOTH en
dc.subject.other FIBER POSTS en
dc.subject.other RESTORATION en
dc.subject.other CROWN en
dc.title The Effect of Select Pulp Cavity Conditions on Stress Field Development in Distal Abutments in Two Types of Fixed Dental Prostheses en
heal.type journalArticle en
heal.language English en
heal.publicationDate 2011 en
heal.abstract Purpose: Insufficient coronal tooth structure may require restoration of endodontically treated (ET) teeth with cast posts and cores (CPCs). The prognosis for these teeth is a matter of scientific debate, especially if they serve as distal abutments in cantilever fixed dental prostheses (FDPs). The purpose of this study was to study stress field development in distal abutments in two types of FDPs with different pulp cavity conditions. Materials and Methods: The methodology involved the development of four digital models in which the right mandibular premolars were splinted via an FOP with: (1) no cantilever and a vital distal abutment, (2) no cantilever and an ET CPC distal abutment, (3) a single-unit cantilever and a vital distal abutment, and (4) a single-unit cantilever with an ET CPC distal abutment. The models were analyzed using a threedimensional finite element program, and von Mises stress values and patterns were evaluated. Results: The results revealed that although the stress distribution patterns in dentin were dissimilar, the von Mises stress values registered for the vital and ET CPC distal abutment were not considerably different. However, higher stress values were detected in the dentin area surrounding the post gutta-percha interface after CPC placement. The addition of the cantilever resulted in a considerable increase in stress on the dental tissue structures. Conclusions: CPCs appear to create a risk of potential fracture that is initiated in the dentin at the apex of the post. The type of restoration appears to have a much more serious impact on the stress pattern developed in the distal abutment, and the addition of a cantilever appears to biomechanically compromise both biologic and restorative structures. Int J Prosthodont 2011;24:118-126. en
heal.publisher QUINTESSENCE PUBLISHING CO INC en
heal.journalName INTERNATIONAL JOURNAL OF PROSTHODONTICS en
dc.identifier.isi ISI:000288832900004 en
dc.identifier.volume 24 en
dc.identifier.issue 2 en
dc.identifier.spage 118 en
dc.identifier.epage 126 en


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