Evaluation of vertical misfit of cad/cam implant-supported titanium and zirconia frameworks

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dc.creatorDiego Fontoura
dc.creatorVinicius Barros
dc.creatorClaúdia Silami de Magalhães
dc.creatorRicardo Rodrigues Vaz
dc.creatorAllyson Nogueira Moreira
dc.date.accessioned2023-01-30T12:56:59Z
dc.date.accessioned2025-09-09T00:35:35Z
dc.date.available2023-01-30T12:56:59Z
dc.date.issued2018
dc.format.mimetypepdf
dc.identifier.doi10.11607/jomi.6320
dc.identifier.issn08822786
dc.identifier.urihttps://hdl.handle.net/1843/49224
dc.languageeng
dc.publisherUniversidade Federal de Minas Gerais
dc.relation.ispartofInternational Journal of Oral & Maxillofacial Implants
dc.rightsAcesso Restrito
dc.subjectDental implants
dc.subjectTitanium
dc.subjectTooth
dc.subject.otherImplante dentário
dc.subject.otherImplantodontia
dc.subject.otherPrótese sobre implante
dc.titleEvaluation of vertical misfit of cad/cam implant-supported titanium and zirconia frameworks
dc.typeArtigo de periódico
local.citation.epage1032
local.citation.issue5
local.citation.spage1027
local.citation.volume33
local.description.resumoPurpose: This study compared the vertical misfit of fixed implant-supported titanium (Ti6Al4V) and yttria-stabilized tetragonal zirconia frameworks milled using the computer-aided design/computer-aided manufacturing (CAD/CAM) Zirkonzahn system. Materials and methods: An aluminum mandibular master cast was used, and four analogs of the Regular CrossFit implant for straight multibase titanium alloy abutments (Institut Straumann) were fixed with self-curing acrylic resin in mandibular canine and second premolar tooth locations with the aid of a parallelometer. Scan abutments were placed over the four straight multibase Regular CrossFit abutments to determine their correct three-dimensional (3D) positioning in the virtual model. Implant frameworks were designed virtually, and five frameworks of each material (titanium alloy or yttria-stabilized tetragonal zirconia) were milled using the CAD/CAM system. Scanning electron microscope (SEM) images, with magnifications of 50×, 250×, and 1,000×, were obtained from three points on the buccal surface, three points on the lingual surface, and three points on the mesial surface of each abutment. The measurements were performed in the center of each of the thirds, thus defining points one, two, and three. The degree of vertical misfit at the framework-abutment interface was determined using ImageJ software and analyzed using the Student t test (P = .05). Results: The mean misalignment value was 6.011 ± 0.750 μm for the titanium group and 9.055 ± 3.692 μm for the zirconia group. Conclusion: Within the limitations of this study, there was no significant difference in vertical misfit between the titanium and zirconia implant frameworks produced using the CAD/CAM system. Regardless of the material used, the CAD/CAM frameworks achieved an adequate vertical fit.
local.publisher.countryBrasil
local.publisher.departmentFAO - DEPARTAMENTO DE ODONTOLOGIA RESTAURADORA
local.publisher.initialsUFMG
local.url.externahttp://quintpub.com/journals/omi/abstract.php?iss2_id=1557&article_id=18743#.Y9e76HDMLrc

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