Effect of framework type on survival probability of implant-supported temporary crowns: An in vitro study

dc.contributor.authorRodrigues, Vinícius-Anéas
dc.contributor.authorDal Piva, Amanda-Maria-de Oliveira [UNESP]
dc.contributor.authorYamaguchi, Claudio-Akira
dc.contributor.authorBorges, Alexandre-Luiz-Souto [UNESP]
dc.contributor.authorMukai, Marcio-Katsuyoshi
dc.contributor.authorTribst, João-Paulo-Mendes [UNESP]
dc.contributor.institutionFaculty of Pindamonhangaba (FUNVIC)
dc.contributor.institutionUniversidade Estadual Paulista (Unesp)
dc.contributor.institutionUniversidade de São Paulo (USP)
dc.date.accessioned2020-12-12T01:29:18Z
dc.date.available2020-12-12T01:29:18Z
dc.date.issued2020-01-01
dc.description.abstractBackground: This in vitro study evaluated the effect of framework type on the survival probability of temporary implant-supported crowns and on the implant platform structure after dynamic fatigue. Material and Methods: Thirty (30) external hexagon implants (3.75 x 10 mm) were embedded in acrylic resin following the ISO-14801. Standardized temporary crowns (n=10, N=30) were manufactured in acrylic resin and divided according to the framework type: Total plastic, Plastic with CoCr base and Titanium. The crowns were installed onto the implants (20N. cm) and fatigued (100N, 2 Hz) to determine the crowns' survival probability for missions of 300.000 and 600.000 cycles. Fatigue data were submitted to the Kaplan-Meier test followed by Wilcoxon and Log Rank, all with α = 5%. The implant platforms were parametrically inspected based on the scanning before and after the fatigue to evaluate the damage. The strain values were analyzed using One-way ANOVA and Tukey test, all with α = 5%. Results: ANOVA revealed that the Total plastic showed less implant damage (-0.07 ±-0.03 mm) than the Plastic with CoCr base (-0.08 ±-0.04 mm) and the Titanium (-0.10 ±-0.01 mm) frameworks. Therefore, the framework type to manufacture implant-supported temporary crowns influences the fatigue survival of the restoration and the implant platform damage. The Plastic with CoCr base and Titanium frameworks showed superior reliability than the Total plastic framework which could not survive 600,000 cycles. Conclusions: The Plastic with CoCr base and the Titanium framework are suitable for restorations over 3 months in use, without a difference in the implant platform damage.en
dc.description.affiliationDepartment of Dental Materials and Proshodontics Faculty of Pindamonhangaba (FUNVIC)
dc.description.affiliationDepartment of Dental Materials and Proshodontics São Paulo State University (Unesp) Institute of Science and Technology
dc.description.affiliationDepartment of Prosthodontics School of Dentistry University of Sao Paulo
dc.description.affiliationUnespDepartment of Dental Materials and Proshodontics São Paulo State University (Unesp) Institute of Science and Technology
dc.format.extente433-e439
dc.identifierhttp://dx.doi.org/10.4317/JCED.56292
dc.identifier.citationJournal of Clinical and Experimental Dentistry, v. 12, n. 5, p. e433-e439, 2020.
dc.identifier.doi10.4317/JCED.56292
dc.identifier.issn1989-5488
dc.identifier.scopus2-s2.0-85087066916
dc.identifier.urihttp://hdl.handle.net/11449/199045
dc.language.isoeng
dc.relation.ispartofJournal of Clinical and Experimental Dentistry
dc.sourceScopus
dc.subjectAxial loading
dc.subjectImplant dentistry
dc.subjectMethodological study
dc.subjectOcclusion
dc.titleEffect of framework type on survival probability of implant-supported temporary crowns: An in vitro studyen
dc.typeArtigo

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