dc.contributor | Universidade Estadual Paulista (Unesp) | |
dc.date.accessioned | 2013-09-30T18:29:57Z | |
dc.date.accessioned | 2014-05-20T13:43:38Z | |
dc.date.accessioned | 2022-10-05T14:06:33Z | |
dc.date.available | 2013-09-30T18:29:57Z | |
dc.date.available | 2014-05-20T13:43:38Z | |
dc.date.available | 2022-10-05T14:06:33Z | |
dc.date.created | 2013-09-30T18:29:57Z | |
dc.date.created | 2014-05-20T13:43:38Z | |
dc.date.issued | 2011-03-01 | |
dc.identifier | Journal of Craniofacial Surgery. Philadelphia: Lippincott Williams & Wilkins, v. 22, n. 2, p. 523-526, 2011. | |
dc.identifier | 1049-2275 | |
dc.identifier | http://hdl.handle.net/11449/15241 | |
dc.identifier | 10.1097/SCS.0b013e3182085401 | |
dc.identifier | WOS:000288535800033 | |
dc.identifier | 9719883814872582 | |
dc.identifier | 5581364193525500 | |
dc.identifier | 0000-0002-3800-3050 | |
dc.identifier.uri | http://repositorioslatinoamericanos.uchile.cl/handle/2250/3890497 | |
dc.description.abstract | Background: 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.language | eng | |
dc.publisher | Lippincott Williams & Wilkins | |
dc.relation | Journal of Craniofacial Surgery | |
dc.relation | 0.772 | |
dc.relation | 0,448 | |
dc.rights | Acesso restrito | |
dc.source | Web of Science | |
dc.subject | Photoelastic | |
dc.subject | implants | |
dc.subject | obturator prostheses | |
dc.title | Photoelastic Stress Analysis of Different Attachment Systems on Implant-Retained and Conventional Palatal Obturator Prostheses | |
dc.type | Artigo | |