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dc.titleBiomechanical Effect Of Prosthetic Connection And Implant Body Shape In Low-quality Bone Of Maxillary Posterior Single Implant-supported Restorationsen
dc.contributor.authorde Andradept_BR
dc.contributor.authorCamila Lima; Carvalhopt_BR
dc.contributor.authorMarco Aurelio; Del Bel Curypt_BR
dc.contributor.authorAltair Antoninha; Sotto-Maiorpt_BR
dc.contributor.authorBruno Sallespt_BR
unicamp.authorDel Bel Cury, Altair Antoninha] Univ Estadual Campinas, Dept Prosthodont & Periodontol, Piracicaba Dent Sch, Ave Limeira 901, BR-13414903 Piracicaba, SP, Brazilpt_BR[de Andrade, Camila Limapt_BR, Marco Aureliopt_BR[Sotto-Maior, Bruno Salles] Univ Fed Juiz de Fora, Dept Restorat Dent, Juiz De Fora, MG, Brazilpt_BR
dc.subjectDental Implanten
dc.subjectFinite Element Analysisen
dc.subjectImplant Body Shapeen
dc.subjectProsthetic Connectionen
dc.description.abstractDental implant macrogeometry parameters, such as the prosthetic connection and implant body shape, can influence the biomechanical behavior of the restoration. Using tridimensional finite element analysis (3D-FEA), this study evaluated the biomechanical behavior of two implant macrodesign parameters (prosthetic connection and implant body shape) in low-quality bone. Materials and Methods: Four groups were obtained by the combination of external hexagon and Morse taper connections, and cylindrical and conical body shapes. Implants (4 phi x 10-mm) with a microthread collar and triangular thread shape received a single abutment and monolithic zirconia crown on the maxillary first molar. Bone was constructed on the basis of cross-sectional images of the posterior human maxilla obtained by cone beam computed tomography. A 200-N axial loading was distributed on five points of the occlusal surface. Data were acquired as shear stress (tau(max), in megapascals) and strain (epsilon(max), in micrometers) in the cortical and trabecular bone. Results: The external hexagon groups generated higher shear stress/strain values compared with Morse taper groups in the cortical bone, regardless of implant body shape. In the trabecular bone, the highest tmax and emax values were observed in the Morse taper conical implant group (6.94 MPa and 21.926 x 10(-4) mu m, respectively), and the lowest values were observed in the external hexagon cylindrical implant group (4.47 MPa and 9.3155 x 10(-4) mu m, respectively). Conclusion: The magnitudes of shear stress and strain in the peri-implant region of low-quality bone was lower with the use of Morse taper connection and cylindrical implants compared with external hexagon connection and conical implants.en
dc.relation.ispartofInternational Journal of Oral & Maxillofacial Implantspt_BR
dc.publisherQuintessence Publishing Co Incpt_BR
dc.publisherHanover Parkpt_BR
dc.identifier.citationInternational Journal Of Oral & Maxillofacial Implants. Quintessence Publishing Co Inc, v. 31, p. E92 - E97, 2016.pt_BR
dc.description.sponsorshipCoordination of Improvement of Higher Level Personnel (CAPES-PROEXpt_BR
dc.description.sponsorshipBrasilia, DF, Brazil) [0235083]pt_BR
dc.description.sponsorship1Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)pt_BR
dc.description.provenanceMade available in DSpace on 2017-11-13T13:57:46Z (GMT). No. of bitstreams: 1 000383358900007.pdf: 191996 bytes, checksum: e461fb6419834a1b8b9f6fa6bff5136b (MD5) Previous issue date: 2016en
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