Influence of autoclave sterilization on bond strength between zirconia frameworks and Ti-base abutments using different resin cements.
Zirconia frameworks luted on titanium bases have been increasingly used for implant-supported prostheses. A reliable bond strength between the framework and the base is a key factor for clinical success. Autoclaving of the abutments before clinical use has been strongly suggested since abutments hav...
| Publicado en: | Journal of Prosthetic Dentistry Vol. 127; no. 4; pp. 617.e1 - 6171 |
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| Autores principales: | , , , , |
| Formato: | research Journal Article |
| Publicado: |
Elsevier B.V.
Apr2022
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| Acceso en línea: | Ver este registro en EBSCOhost |
| fields | @attributes: recordID: 1 pdfLink: plink: https://search.ebscohost.com/login.aspx?direct=true&db=ccm&AN=157075077&site=ehost-live header: @attributes: shortDbName: ccm uiTerm: 157075077 longDbName: CINAHL Complete uiTag: AN controlInfo: bkinfo: dissinfo: jinfo: jid: 00223913 1ZB jtl: Journal of Prosthetic Dentistry issn: 00223913 maglogo: N pubinfo: dt: Apr2022 vid: 127 iid: 4 pid: 467 pub: Elsevier B.V. place: New York, New York artinfo: ui: 157075077 157075077 157075077 10.1016/j.prosdent.2022.01.028 157075077 ppf: 617.e1 ppct: 1 formats: tig: atl: Influence of autoclave sterilization on bond strength between zirconia frameworks and Ti-base abutments using different resin cements. aug: au: Lang, Reinhold Hiller, Karl-Anton Kienböck, Lena Friedl, Katrin Friedl, Karl-Heinz affil: Associate Professor, Department of Prosthetic Dentistry, University Hospital Regensburg, Regensburg, Germany sug: subj: Dental Prosthesis Metals Dental Abutments Resins, Synthetic Dental Cements Sterilization and Disinfection Methods Titanium Human In Vitro Studies Mann-Whitney U Test Descriptive Statistics Computer-Aided Design ab: Zirconia frameworks luted on titanium bases have been increasingly used for implant-supported prostheses. A reliable bond strength between the framework and the base is a key factor for clinical success. Autoclaving of the abutments before clinical use has been strongly suggested since abutments have been classified as class II medical devices. However, comprehensive knowledge on the susceptibility of the composite resin luting agents' adhesion to autoclave sterilization is lacking. The purpose of this in vitro study was to assess the bond strength between zirconia frameworks and titanium bases using different composite resin luting agents with and without thermocycling and autoclaving. A total of 200 titanium implants were copy milled and 200 zirconia frameworks (Cercon) were generated by computer-aided design and computer-aided manufacturing (CAD-CAM). They were adhesively luted using Multilink Hybrid Abutment (MHA), Panavia F2.0 (PF2), Panavia V5 (PV5), RelyX Ultimate (RXU), or Panavia SA Cement Plus (PSA). Autoclaving (134 °C, 0.21 MPa, 5.5 minutes) and thermocycling (3000 cycles, 5 °C and 55 °C) were performed. The push out bond strength was tested at a crosshead speed of 1 mm/min. Statistical analysis was performed by using the Mann-Whitney U test (α=.05) and the family-wise error rate method. Median bond strength values (interquartile range) after autoclaving and thermocycling ranged between 33.7 (26.7-41.8) MPa for MHA and 7.6 (7.3-8.5) MPa for PF2. MHA showed significantly higher values than all other composite resin luting agents regardless of thermocycling or autoclaving. PV5 showed equal or higher bond strength values than PSA, RXU, and PF2. Autoclaving had no significant influence on MHA or PV5, but had a negative effect on PSA and RXU. The family-wise error rate method showed that both the composite resin luting agent and autoclave sterilization had an overall influence on bond strength. MHA and PV5 were not significantly influenced by autoclaving and showed acceptable bond strength values. Because MHA showed significantly higher bond strength than all other materials and is released for autoclaving by the manufacturer, it is the first choice for extraoral bonding of zirconia frameworks to titanium bases. Manufacturers who state the indication of extraoral cementation of frameworks on titanium bases should also indicate whether their composite luting material is affected by autoclaving. pubtype: Academic Journal doctype: research Journal Article ougenre: Article language: English refInfo: holdings: @attributes: islocal: N |
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