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Please use this identifier to cite or link to this item: http://acervodigital.unesp.br/handle/11449/15023
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dc.contributor.authorFerreira, Mayara Barbosa-
dc.contributor.authorDelben, Juliana Aparecida-
dc.contributor.authorRicardo Barao, Valentim Adelino-
dc.contributor.authorFaverani, Leonardo Perez-
dc.contributor.authorSantos, Paulo Henrique dos-
dc.contributor.authorAssunção, Wirley Goncalves-
dc.date.accessioned2013-09-30T18:29:54Z-
dc.date.accessioned2014-05-20T13:43:09Z-
dc.date.accessioned2016-10-25T16:57:47Z-
dc.date.available2013-09-30T18:29:54Z-
dc.date.available2014-05-20T13:43:09Z-
dc.date.available2016-10-25T16:57:47Z-
dc.date.issued2012-11-01-
dc.identifierhttp://dx.doi.org/10.1097/SCS.0b013e318270fe0e-
dc.identifier.citationJournal of Craniofacial Surgery. Philadelphia: Lippincott Williams & Wilkins, v. 23, n. 6, p. E631-E634, 2012.-
dc.identifier.issn1049-2275-
dc.identifier.urihttp://hdl.handle.net/11449/15023-
dc.identifier.urihttp://acervodigital.unesp.br/handle/11449/15023-
dc.description.abstractThe screw loosening of implant-supported prostheses is a common mechanical failure and is related to several factors as insertion torque and preload. The aim of this study was to evaluate the torque maintenance of retention screws of tapered abutments and cylinders of Morse taper implants submitted to retightening and detorque measurements. Two groups were obtained (n = 12): group I-tapered abutment connected to the implant with titanium retention screw and group II-cylinder with metallic base connected to tapered abutment with titanium retention screw. The detorque values were measured by an analogic torque gauge after 3 minutes of torque insertion. The detorque was measured 10 times for each retention screw of groups I and II, totalizing 120 detorque measurements in each group. Data were submitted to ANOVA and Fisher exact test (P < 0.05). Both groups presented reduced detorque value (P < 0.05) in comparison to the insertion torque in all measurement periods. There was a statistically significant difference (P < 0.05) between the detorque values of the first measurement and the other measurement periods for the abutment screw. However, there was no statistically significant difference (P > 0.05) for the detorque values of all measurement periods for the cylinder screw. In conclusion, the abutment and cylinder screws exhibited torque loss after insertion, which indicates the need for retightening during function of the implant-supported prostheses.en
dc.description.sponsorshipFundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)-
dc.format.extentE631-E634-
dc.language.isoeng-
dc.publisherLippincott Williams & Wilkins-
dc.sourceWeb of Science-
dc.subjectImplant-supported prosthesisen
dc.subjectdental implanten
dc.subjectpreloaden
dc.subjecttorqueen
dc.subjectretention screwen
dc.titleEvaluation of Torque Maintenance of Abutment and Cylinder Screws With Morse Taper Implantsen
dc.typeoutro-
dc.contributor.institutionUniversidade Estadual Paulista (UNESP)-
dc.description.affiliationUniv Estadual Paulista UNESP, Dept Dent Mat & Prosthodont, Aracatuba Dent Sch, BR-16015050 São Paulo, Brazil-
dc.description.affiliationUniv Estadual Paulista UNESP, Dept Oral & Maxillofacial Surg, Aracatuba Dent Sch, BR-16015050 São Paulo, Brazil-
dc.description.affiliationUnespUniv Estadual Paulista UNESP, Dept Dent Mat & Prosthodont, Aracatuba Dent Sch, BR-16015050 São Paulo, Brazil-
dc.description.affiliationUnespUniv Estadual Paulista UNESP, Dept Oral & Maxillofacial Surg, Aracatuba Dent Sch, BR-16015050 São Paulo, Brazil-
dc.description.sponsorshipIdFAPESP: 09/14666-5-
dc.identifier.doi10.1097/SCS.0b013e318270fe0e-
dc.identifier.wosWOS:000311889300041-
dc.rights.accessRightsAcesso restrito-
dc.relation.ispartofJournal of Craniofacial Surgery-
Appears in Collections:Artigos, TCCs, Teses e Dissertações da Unesp

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