dc.contributorUniversidade Estadual Paulista (Unesp)
dc.date.accessioned2013-09-30T18:29:57Z
dc.date.accessioned2014-05-20T13:43:38Z
dc.date.accessioned2022-10-05T14:06:33Z
dc.date.available2013-09-30T18:29:57Z
dc.date.available2014-05-20T13:43:38Z
dc.date.available2022-10-05T14:06:33Z
dc.date.created2013-09-30T18:29:57Z
dc.date.created2014-05-20T13:43:38Z
dc.date.issued2011-03-01
dc.identifierJournal of Craniofacial Surgery. Philadelphia: Lippincott Williams & Wilkins, v. 22, n. 2, p. 523-526, 2011.
dc.identifier1049-2275
dc.identifierhttp://hdl.handle.net/11449/15241
dc.identifier10.1097/SCS.0b013e3182085401
dc.identifierWOS:000288535800033
dc.identifier9719883814872582
dc.identifier5581364193525500
dc.identifier0000-0002-3800-3050
dc.identifier.urihttp://repositorioslatinoamericanos.uchile.cl/handle/2250/3890497
dc.description.abstractBackground: Considering that an increasing number of patients are victims of mutilator surgical resections, these studies are important for treatment success of rehabilitation of patients presenting oronasal communication.Purpose: The aim of this study was to assess the stress distribution through photoelasticity in palatal obturator prostheses with different attachment systems for implants.Methods: Two photoelastic models were obtained from an experimental maxillary model presenting an oronasal communication. One model was fabricated without implant, and the other with 2 implants 10 mm in length inserted in the left crest. Four colorless palatal obturator prostheses were fabricated. One prosthesis presented no attachment system, whereas the remaining prostheses were adapted to 3 attachment systems. The assembly was positioned in a circular polariscope for application of axial load.Results: The results were based on photographic records of stress in the photoelastic model submitted to loading. The records revealed higher stress concentration on the bar-clip system followed by the O'ring/bar-clip and O'ring systems, respectively. A homogeneous stress distribution was observed on the photoelastic model with the mucous-supported prosthesis.Conclusions: The attachment systems generated different characteristics of stress distribution that was concentrated surrounding the implants. The bar-clip system exhibited the highest stress concentration on the alveolar crest.
dc.languageeng
dc.publisherLippincott Williams & Wilkins
dc.relationJournal of Craniofacial Surgery
dc.relation0.772
dc.relation0,448
dc.rightsAcesso restrito
dc.sourceWeb of Science
dc.subjectPhotoelastic
dc.subjectimplants
dc.subjectobturator prostheses
dc.titlePhotoelastic Stress Analysis of Different Attachment Systems on Implant-Retained and Conventional Palatal Obturator Prostheses
dc.typeArtigo


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