dc.contributor | Universidade Estadual Paulista (Unesp) | |
dc.date.accessioned | 2014-05-27T11:28:37Z | |
dc.date.available | 2014-05-27T11:28:37Z | |
dc.date.created | 2014-05-27T11:28:37Z | |
dc.date.issued | 2013-03-01 | |
dc.identifier | Acta Odontologica Scandinavica, v. 71, n. 2, p. 283-288, 2013. | |
dc.identifier | 0001-6357 | |
dc.identifier | 1502-3850 | |
dc.identifier | http://hdl.handle.net/11449/74757 | |
dc.identifier | 10.3109/00016357.2012.672823 | |
dc.identifier | WOS:000315413000001 | |
dc.identifier | 2-s2.0-84874494180 | |
dc.identifier | 9719883814872582 | |
dc.identifier | 0000-0002-3800-3050 | |
dc.description.abstract | Objective. 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.language | eng | |
dc.relation | Acta Odontologica Scandinavica | |
dc.relation | 1.522 | |
dc.relation | 0,706 | |
dc.relation | 0,706 | |
dc.rights | Acesso restrito | |
dc.source | Scopus | |
dc.subject | Biomechanics | |
dc.subject | Dental implants | |
dc.subject | Fixed prosthesis | |
dc.subject | Photoelastic stress analysis | |
dc.subject | Screw retained | |
dc.subject | biomechanics | |
dc.subject | dental abutment | |
dc.subject | human | |
dc.subject | theoretical model | |
dc.subject | tooth implant | |
dc.subject | Dental Implant-Abutment Design | |
dc.subject | Dental Implants | |
dc.subject | Humans | |
dc.subject | Models, Theoretical | |
dc.title | Stress distribution in implant-supported prosthesis with external and internal implant-abutment connections | |
dc.type | Artículos de revistas | |