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

• Verfasst von: Zenthöfer, Andreas [VerfasserIn]
• Verfasst von: Rues, Stefan [VerfasserIn]
• Verfasst von: Krisam, Johannes [VerfasserIn]
• Verfasst von: Rammelsberg, Peter [VerfasserIn]
• Verfasst von: Schmitter, Marc [VerfasserIn]
• Titel: Debonding forces for two-piece zirconia abutments with implant platforms of different diameter and use of different luting strategies
• Verf.angabe: Zenthöfer, Andreas / Rues, Stefan / Krisam, Johannes / Rustemeyer, Rainer / Rammelsberg, Peter / Schmitter, Marc
• E-Jahr: 2018
• Jahr: 04.10.2018
• Umfang: 6 S.
• Fussnoten: Gesehen am 31.03.2020
• Titel Quelle: Enthalten in: The international journal of oral & maxillofacial implants
• Ort Quelle: Batavia : Quintessence Publishing, 1986
• Jahr Quelle: 2018
• Band/Heft Quelle: 33(2018), 5, Seite 1041-1046
• ISSN Quelle: 1942-4434
• DOI: doi:10.11607/jomi.6300
• Datenträger: Online-Ressource
• Sprache: eng
• K10plus-PPN: 1693576252

Abstract

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.