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Debonding forces for two-piece zirconia abutments with implant platforms of different diameter and use of different luting strategies

Andreas Zenthöfer, DMD, PhD/Stefan Rues, Dipl.-Ing./Johannes Krisam, PhD/Rainer Rustemeyer/Peter Rammelsberg, DMD, PhD/Marc Schmitter, DMD, PhD: Purpose: The forces needed to detach zirconia copings from titanium inserts of two-piece abutments were - evaluated for implant platforms of different di...

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Main Authors: Zenthöfer, Andreas (Author) , Rues, Stefan (Author) , Krisam, Johannes (Author) , Rammelsberg, Peter (Author) , Schmitter, Marc (Author)
Format: Article (Journal)
Language:English
Published: 04.10.2018
In: The international journal of oral & maxillofacial implants
Year: 2018, Volume: 33, Issue: 5, Pages: 1041-1046
ISSN:1942-4434
DOI:10.11607/jomi.6300
Online Access:Verlag, Volltext: https://doi.org/10.11607/jomi.6300
Verlag: https://jomi.quintessenz.de/index.php?doc=abstract&abstractID=41250
Verlag, lizenzpflichtig, Volltext: http://quintpub.com/journals/omi/abstract.php?iss2_id=1557&article_id=18745#.XoLfZ3JCQ2x
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Author Notes:Zenthöfer, Andreas / Rues, Stefan / Krisam, Johannes / Rustemeyer, Rainer / Rammelsberg, Peter / Schmitter, Marc
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Summary:Andreas Zenthöfer, DMD, PhD/Stefan Rues, Dipl.-Ing./Johannes Krisam, PhD/Rainer Rustemeyer/Peter Rammelsberg, DMD, PhD/Marc Schmitter, DMD, PhD: Purpose: The forces needed to detach zirconia copings from titanium inserts of two-piece abutments were - evaluated for implant platforms of different diameters (4.8 and 6.5 mm) and different luting strategies. - Materials and Methods: Eight specimens (four for each platform diameter) were prepared to simulate - two-piece zirconia implant abutments with prefabricated titanium inserts and computer-aided design/computer-aided manufactured (CAD/CAM) zirconia copings. Half of the copings were luted to their titanium - inserts by use of composite cement; the others were luted after additional bonding treatment of the titanium - and zirconia surfaces. All specimens were subjected to tensile forces up to failure. Samples were used with - or without artificial aging. Each specimen was luted and subsequently debonded 12 times; thus, a total of - 96 tests were conducted. Results: All debonding forces exceeded approximately 600 N. Larger platform - diameters (P < .001) and additional bonding treatment (P = .021) resulted in significantly better retention; - artificial aging had no effect (P = .165). Conclusion: Forces for debonding of titanium bases from zirconia - abutments were favorable. The use of these abutments might be a viable prosthetic treatment option in - specific clinical cases.
Item Description:Gesehen am 31.03.2020
Physical Description:Online Resource
ISSN:1942-4434
DOI:10.11607/jomi.6300

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