Acta Scientific Dental Sciences (ASDS)(ISSN: 2581-4893)

Research Article Volume 7 Issue 4

Influence of Various Surface Treatments on The Bond Strength of a Polyetherketoneketone (PEKK) Post Versus Fiberglass Post (An In vitro Study)

Ahmed El Masry1*, Iman Salah Eldin Hamdy2 and Noha Adel El Khodary3

11Master Degree Candidate, Department of Fixed Prosthodontics, Faculty of Dentistry, Cairo University, Egypt
2Professor of Fixed Prosthodontics, Department of Fixed Prosthodontics, Faculty of Dentistry, Cairo University, Egypt
3Associate Professor of Fixed Prosthodontics, Department of Fixed Prosthodontics, Faculty of Dentistry, Cairo University, Egypt

*Corresponding Author: Ahmed El Masry, Master’s degree Candidate, Department of Fixed Prosthodontics, Faculty of Dentistry, Cairo University, Egypt.

Received: March 07, 2023; Published: March 28, 2023

Abstract

Purpose: To evaluate the influence of various surface treatments (Sandblasting, acid etching and silica- coating/silane) on the bond strength and mode of failure of PEKK post compared to fiber post.

Material and Methods: Thirty-six extracted mandibular first premolar were selected, and standardized post spaces have been prepared. The PEKK posts were milled from PEKK blank (Pekkton). The teeth were randomly distributed into four groups (n = 9): group A (Control group) prefabricated silanated fiber post, group B: PEKK posts sandblasting with silica modified Al2O3, then apply silane coupling agent, group C: PEKK Posts sandblasting with Al2O3, group D: PEKK posts etching with 98% sulfuric acid. All posts have been bonded using self-adhesive resin cement. Coronal section (2mm thickness) was obtained from each sample. Bond strength was then measured using push-out test. Modes of failure were evaluated by stereomicroscope. ANOVA One Way analysis of Variance (ANOVA) test was used followed by Tukey`s post hoc test for multiple comparisons. Failure mode of all groups was performed using by Chi square test.

Results: Control group recorded the highest push-out bond strength (17.32 ± 2.56 MPa) followed by aluminium oxide silica coated sandblasted group B (12.91 ± 1.95 MPa) then sulfuric acid etched group D (9.78 ± 0.96 MPa), while the lowest bond strength has been recorded with aluminium oxide sandblasted group C (9.38 ± 1.47 MPa). Comparison between different groups (Group A and all other groups\Group B and all other groups) revealed significant difference between them (P < 0.05). Group C and group D showed insignificant difference (P > 0.05). Also, comparison between different mode of failure was revealed significant difference only in adhesive mode between cement and post (P < 0.05). Group C was significantly the highest (44.4%) while group A was significantly the lowest (0%).

Conclusions: Glass fiber post reported higher push-out bond strength than PEKK post regardless different tested surface treatment modalities. Furthermore, the PEKK posts, blasted with silica modified aluminium oxide particles and coated with silane, showed a significant advantage for bonding, and may be promising surface treatment modality for PEKK post. Also, aluminium oxide blasting can be used as an alternative surface treatment to PEKK posts rather than etching with sulfuric acid.

Keywords: Post; PEKK; Push-Out; Bond Strength; Surface Treatment

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Citation

Citation: Ahmed El Masry., et al. “Influence of Various Surface Treatments on The Bond Strength of a Polyetherketoneketone (PEKK) Post Versus Fiberglass Post (An In vitro Study)".Acta Scientific Dental Sciences 7.4 (2023): 95-104.

Copyright

Copyright: © 2023 Ahmed El Masry., et al. This is an open-access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.




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