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Implant Angulation Effect on the Fracture Resistance of Monolithic Zirconia Custom Abutments: An In Vitro Study
dc.contributor.authorKatsavochristou, Anastasia
dc.contributor.authorSierraalta, Marianella
dc.contributor.authorSaglik, Berna
dc.contributor.authorKoumoulis, Dimitrios
dc.contributor.authorGeorge, Furat
dc.contributor.authorRazzoog, Michael
dc.date.accessioned2020-08-10T20:54:26Z
dc.date.availableWITHHELD_11_MONTHS
dc.date.available2020-08-10T20:54:26Z
dc.date.issued2020-06
dc.identifier.citationKatsavochristou, Anastasia; Sierraalta, Marianella; Saglik, Berna; Koumoulis, Dimitrios; George, Furat; Razzoog, Michael (2020). "Implant Angulation Effect on the Fracture Resistance of Monolithic Zirconia Custom Abutments: An In Vitro Study." Journal of Prosthodontics 29(5): 394-400.
dc.identifier.issn1059-941X
dc.identifier.issn1532-849X
dc.identifier.urihttps://hdl.handle.net/2027.42/156185
dc.description.abstractPurposeTo investigate the fracture resistance and performance of zirconia when employed for the fabrication of implant abutments with different angulations, simulating anterior maxillary oral rehabilitation.Materials and MethodsForty‐five monolithic zirconia custom abutments of internal conical implant connection were CAD/CAM designed and fabricated. The specimens were divided into three groups (n = 15/group) according to implant‐to‐abutment angulation. The angulations used were; 0°, 15°, and 25°. The abutments were loaded until failure at 135° using the Universal Testing Machine (Instron, Canton, MA). Collected data were statistically analyzed using one‐way ANOVA and post hoc Tukey test.ResultsMean (±standard deviation) load at fracture of the zirconia abutments for the three groups were 962.37 ± 93.81 N (Gr15) > 718.25 ± 93.71 N (Gr25) > 534.05 ±133.77 N (Gr0). Statistically significant difference (p < 0.0001) was found between all groups; Gr0 vs. Gr15, Gr0 vs. Gr25, Gr15 vs. Gr25.ConclusionsContrary to expectations, the non‐angulated monolithic zirconia abutments presented the lowest fracture resistance values. Angulating the abutments 15 or 25 degrees, following the palatal resorption pattern of the premaxilla, significantly increased the in vitro fracture resistance.
dc.publisherUniversity of Michigan
dc.publisherWiley Periodicals, Inc.
dc.subject.otherangulation
dc.subject.otherbioengineering mechanics
dc.subject.otherzirconia abutment
dc.subject.othermonolithic
dc.subject.otherimplant
dc.subject.otherfracture resistance
dc.titleImplant Angulation Effect on the Fracture Resistance of Monolithic Zirconia Custom Abutments: An In Vitro Study
dc.typeArticle
dc.rights.robotsIndexNoFollow
dc.subject.hlbsecondlevelDentistry
dc.subject.hlbtoplevelHealth Sciences
dc.description.peerreviewedPeer Reviewed
dc.description.bitstreamurlhttp://deepblue.lib.umich.edu/bitstream/2027.42/156185/2/jopr13127_am.pdfen_US
dc.description.bitstreamurlhttp://deepblue.lib.umich.edu/bitstream/2027.42/156185/1/jopr13127.pdfen_US
dc.identifier.doi10.1111/jopr.13127
dc.identifier.sourceJournal of Prosthodontics
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dc.owningcollnameInterdisciplinary and Peer-Reviewed


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