dc.contributorUniversidade Estadual Paulista (Unesp)
dc.date.accessioned2014-05-27T11:28:37Z
dc.date.accessioned2022-10-05T18:45:20Z
dc.date.available2014-05-27T11:28:37Z
dc.date.available2022-10-05T18:45:20Z
dc.date.created2014-05-27T11:28:37Z
dc.date.issued2013-03-01
dc.identifierActa Odontologica Scandinavica, v. 71, n. 2, p. 283-288, 2013.
dc.identifier0001-6357
dc.identifier1502-3850
dc.identifierhttp://hdl.handle.net/11449/74757
dc.identifier10.3109/00016357.2012.672823
dc.identifierWOS:000315413000001
dc.identifier2-s2.0-84874494180
dc.identifier9719883814872582
dc.identifier0000-0002-3800-3050
dc.identifier.urihttp://repositorioslatinoamericanos.uchile.cl/handle/2250/3923708
dc.description.abstractObjective. This study aimed to investigate the stress distribution in screwed implant-supported prostheses with different implant-abutment connections by using a photoelastic analysis. Materials and methods. Four photoelastic models were fabricated in PL-2 resin and divided according to the implant-abutment connection (external hexagon (EH) and Morse taper (MT) implants (3.75 × 11.5 mm)) and the number crowns (single and 3-unit piece). Models were positioned in a circular polariscope and 100-N axial and oblique (45) loading were applied in the occlusal surface of the crowns by using a universal testing machine. The stresses were photographically recorded and qualitatively analyzed using software (Adobe Photoshop). Results. Under axial loading, the MT implants exhibited a lower number of fringes for single-unit crowns than EH implants, whereas for a 3-unit piece the MT implants showed a higher number of fringes vs EH implants. The oblique loading increased the number of fringes for all groups. Conclusion. In conclusion, the MT implant-abutment connection reduced the amount of stress in single-unit crowns, for 3-unit piece crowns the amount of stress was lower using an external hexagon connection. The stress pattern was similar for all groups. Oblique loading promoted a higher stress concentration than axial loading. © Informa Healthcare.
dc.languageeng
dc.relationActa Odontologica Scandinavica
dc.relation1.522
dc.relation0,706
dc.relation0,706
dc.rightsAcesso restrito
dc.sourceScopus
dc.subjectBiomechanics
dc.subjectDental implants
dc.subjectFixed prosthesis
dc.subjectPhotoelastic stress analysis
dc.subjectScrew retained
dc.subjectbiomechanics
dc.subjectdental abutment
dc.subjecthuman
dc.subjecttheoretical model
dc.subjecttooth implant
dc.subjectDental Implant-Abutment Design
dc.subjectDental Implants
dc.subjectHumans
dc.subjectModels, Theoretical
dc.titleStress distribution in implant-supported prosthesis with external and internal implant-abutment connections
dc.typeArtigo


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