Fracture Strength and Precision of Fit of Implant-Retained Monolithic Zirconia Crowns

The Journal of Oral Implantology
Pauliina MoilanenTimo O Närhi

Abstract

New monolithic zirconia materials can be used to fabricate full-contour fixed dental prostheses with the computer-aided design/computer-aided manufacturing (CAD/CAM) method. The aim of this study was to examine the fracture strength and precision of fit of screw-retained monolithic zirconia crowns made directly on implants or by cementing on prefabricated titanium (Ti) bases. Monolithic screw-retained implant crowns (n = 6) were produced by CAD/CAM method using partially (PSZ) and fully stabilized (FSZ) zirconia. Industrially produced zirconia crowns were used as a reference. A lateral incisor study model was made onto an implant replica. Crowns were produced either directly on the implant or through cementing on a prefabricated titanium base (PSZ+Ti, FSZ+Ti). The crowns were tightened to implant replicas with a torque of 35 Ncm. The gap between the replica and the abutment or crown was measured from ×400 scanning electron microscope images for precision of fit. Mechanical testing until failure was completed with a universal testing machine with loading angle of 45°. Statistical analysis was performed (analysis of variance). Mean (±SD) failure loads were 259 ± 23 (PSZ), 140 ± 13 (FSZ), 453 ± 25 (PSZ+Ti), 439 ± 41 (FSZ+Ti), and ...Continue Reading

References

Jan 1, 1977·Acta Odontologica Scandinavica·E HelkimoM Helkimo
May 13, 2008·European Journal of Oral Sciences·Mar Lujan-ClimentMaria Peraire
Feb 5, 2013·The International Journal of Oral & Maxillofacial Implants·Diego LopsEugenio Romeo
May 11, 2013·Journal of Biomedical Materials Research. Part B, Applied Biomaterials·Sheila Pestana PassosMarco Antonio Bottino
Jun 6, 2013·Clinical Oral Implants Research·Sven MühlemannIrena Sailer
Jul 23, 2013·The International Journal of Oral & Maxillofacial Implants·Marzieh AlikhasiSareh Keshavarz
Sep 3, 2013·The International Journal of Prosthodontics·Rahul Prasad, Abdulaziz Abdullah Al-Kheraif
Apr 5, 2014·Journal of Dentistry·Martin RosentrittVerena Preis
Oct 4, 2014·The Journal of Prosthetic Dentistry·Danilo Gonzaga B de FrançaGustavo A S Barbosa
May 4, 2015·Dental Materials : Official Publication of the Academy of Dental Materials·Bjarni Elvar PjeturssonDaniel Stefan Thoma
Nov 26, 2015·The Journal of Prosthetic Dentistry·Erica Dorigatti de AvilaFrancisco de Assis Mollo
Feb 3, 2016·The Journal of Prosthetic Dentistry·Lyndon F CooperMichael McGuire
Mar 8, 2016·The Journal of Prosthetic Dentistry·Konstantinos M ChochlidakisCarlo Ercoli
Mar 22, 2016·The Journal of Prosthetic Dentistry·Mariana de Almeida BasílioJoão Neudenir Arioli Filho
Sep 16, 2016·The International Journal of Oral & Maxillofacial Implants·Luis Eduardo ButignonJoão Neudenir Arioli Filho
Oct 23, 2016·The Journal of Prosthetic Dentistry·Adham ElsayedMatthias Kern
Dec 5, 2016·Journal of the Mechanical Behavior of Biomedical Materials·Abdulaziz AlsahhafRalf-Joachim Kohal

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Citations

Nov 12, 2020·Journal of Esthetic and Restorative Dentistry : Official Publication of the American Academy of Esthetic Dentistry ... [et Al.]·Nicholas B DuVallKraig S Vandewalle
Feb 26, 2021·BioMed Research International·Paolo De AngelisPaolo Francesco Manicone
Nov 19, 2021·European Journal of Dentistry·Ahmad M Al-Thobity

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