| Photoelastic analysis of the influence of residual ridge inclination in conjugated class I mandibular prostheses with different attachment systems. | |
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MedLine Citation:
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PMID: 23311324 Owner: NLM Status: Publisher |
Abstract/OtherAbstract:
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Abstract Objectives: The aim of this study was to evaluate the stress distribution in mandibular free-end removable partial dentures (RPD) associated with FPD in the abutment teeth considering different inclinations of the residual ridge: (1) horizontal and (2) distal descending ridges and two designs of free-end RPD with different attachment systems were tested: (1) clasp and (2) system ERA. Methods. Axial loads (100 N) were applied on the teeth of the RPD. The images were recorded and the stress distribution was evaluated through photoelastic fringes. Results. In general, the distal descending ridge presented more photoelastic fringes in the region of the roots of the abutment teeth while the horizontal ridge exhibited higher compression in the base of the prosthesis. In the horizontal ridge, the denture with clasp presented more favourable stress distribution than the denture with the system ERA. In the distal descending ridge, the denture with the system ERA relieved the region of the abutment teeth and overloaded the residual ridge. Conclusion: The horizontal ridge presented more favourable performance; the dentures with clasp exhibited better performance for both ridges evaluated; the denture with the system ERA presented better results in the distal descending ridge. |
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Authors:
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Renato Ferraço; Eduardo Piza Pellizzer; Bianca Piccolotto Tonella; Rosse Mary Falcón-Antenucci; Fellippo Ramos Verri; Stefan Fiúza de Carvalho Dekon; Marcelo Coelho Goiato |
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Publication Detail:
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Type: JOURNAL ARTICLE Date: 2013-1-14 |
Journal Detail:
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Title: Acta odontologica Scandinavica Volume: - ISSN: 1502-3850 ISO Abbreviation: Acta Odontol. Scand. Publication Date: 2013 Jan |
Date Detail:
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Created Date: 2013-1-14 Completed Date: - Revised Date: - |
Medline Journal Info:
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Nlm Unique ID: 0370344 Medline TA: Acta Odontol Scand Country: - |
Other Details:
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Languages: ENG Pagination: - Citation Subset: - |
Affiliation:
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Araçatuba Dental School, São Paulo State University-UNESP , São Paulo , Brazil. |
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From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
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