Igarashi, Kensuke; Katagiri, Hiroki; Abou-Ayash, Samir; Schimmel, Martin; Afrashtehfar, Kelvin I. (2023). Double-Crown Prosthesis Retention using Polyetherketoneketone (PEKK): An In Vitro Study. Journal of prosthodontics, 32(2), pp. 154-161. Wiley 10.1111/jopr.13512
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Journal_of_Prosthodontics_-_2022_-_Igarashi_-_Double_Crown_Prosthesis_Retention_using_Polyetherketoneketone_PEKK_An_In.pdf - Accepted Version Available under License Publisher holds Copyright. Download (1MB) | Preview |
PURPOSE
To assess the retentive force of telescopic crowns using polyetherketoneketone (PEKK) high-performance polymer (HPP) in relation to conventional materials over a long period of time in an in vitro setting.
MATERIALS AND METHODS
Thirty-six sets of primary and secondary crowns were fabricated as per the double crown-retained prostheses approach. Six samples were included in each of the five test groups (1: Zirconia/PEKK [Zr/PEKK]; 2: Titanium/PEKK [Ti/PEKK]; 3: Cobalt-chrome/PEKK [CoCr/PEKK]; 4: PEKK/PEKK; 5: Gold/PEKK [Au/PEKK]) and the single control group (Gold/Galvano-gold [Au/GA]). The insertion-removal test was performed for 20,000 cycles, and the surface condition was observed. Retentive forces were analyzed using two-way ANOVA (α<0.05).
RESULTS
The retention forces in groups Zr/PEKK and Ti/PEKK significantly decreased over time (group 1: p = 0.035, group 2: p = 0.001), whereas retentive force increased significantly in groups PEKK/PEKK, Au/PEKK, and Control (group 4: p = 0.001, group 5: p = 0.008, control: p = 0.042). Similar wear was observed on the primary crown in groups PEKK/PEKK, Gold/PEKK, and control.
CONCLUSIONS
Groups PEKK/PEKK and Au/PEKK showed a transition of retentive force similar to the control group. Groups PEKK/PEKK and Au/PEKK had similar wear on the surface compared to control. Therefore, PEKK has a promising clinical potential. This article is protected by copyright. All rights reserved.
Item Type: |
Journal Article (Original Article) |
|---|---|
Division/Institute: |
04 Faculty of Medicine > School of Dental Medicine > Department of Reconstructive Dentistry and Gerodontology |
UniBE Contributor: |
Abou-Ayash, Samir, Schimmel, Martin, Afrashtehfar, Kelvin Ian |
ISSN: |
1532-849X |
Publisher: |
Wiley |
Language: |
English |
Submitter: |
Pubmed Import |
Date Deposited: |
29 Mar 2022 09:11 |
Last Modified: |
30 Mar 2023 00:25 |
Publisher DOI: |
10.1111/jopr.13512 |
PubMed ID: |
35343624 |
Uncontrolled Keywords: |
Chromium Alloys Double crowns Gold Ketones PEKK Prosthesis Retention Retentive force Telescopic crowns |
BORIS DOI: |
10.48350/168269 |
URI: |
https://boris.unibe.ch/id/eprint/168269 |
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