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


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


  1. Song CH., et al. "Comparison of the microtensile bond strength of a Polyetherketoneketone (PEKK) tooth post cemented with various surface treatments and various resin cements". Materials (Basel) 6 (2018): 916.
  2. Allabban M., et al. "Evaluation of bond strength of aesthetic type of posts at different regions of root canal after application of adhesive resin cement". The Journal of Medical Sciences 13 (2019): 2167-2172.
  3. Jhavar N., et al. "Recent advances in post systems: A review". JOADMS 3 (2015): 128-136.
  4. Mishra , et al. "Evolution of posts - from rigidity to flexibility". IJSR 6.5 (2015): 2671-2677.
  5. Bittner N., et al. "Evaluation of a one-piece milled zirconia post and core with different post-and-core systems: An in vitro study". Journal of Prosthetic Dentistry 6 (2010): 369-379.
  6. Sakihara M., et al. "Effects of sulfuric and vinyl sulfonic acid etchants on bond strength of resin composite to polyetherketoneketone". Odontology 2 (2019): 158-164.
  7. Alqurashi H., et al. "Polyetherketoneketone (PEKK): an emerging biomaterial for oral implant and dental prostheses". Journal of Advanced Research 28 (2021): 87-95.
  8. Kotthaus M., et al. "Investigation of the retention forces of secondary telescopic crowns made from Pekkton® ivory in combination with primary crowns made from four different dental alloys: An in vitro study". Biomed Tech (Berl) 5 (2019): 555-562.
  9. Lee , et al. "Push-out bond strength evaluation of fiber-reinforced composite resin post cemented with self-adhesive resin cement using different adhesive bonding systems". Materials (Basel) 14.13 (2021): 3639.
  10. Güven M., et al. "Custom and prefabricated polyetherketoneketone (PEKK) post-core systems bond strength: Scanning electron microscopy evaluation". Microscopy Research and Technique 7 (2020): 804-810.
  11. Goracci C and Ferrari M. "Current perspectives on post systems: a literature review". Australian Dental Journal 56 (2011): 77-83.
  12. Maroulakos , et al. "The Post-endodontic Adhesive Interface: Theoretical Perspectives and Potential Flaws". Journal of Endodontics 44.3 (2018): 363-371.
  13. Kittur , et al. "The monoblock concept in endodontics". IP Indian Journal of Conservative and Endodontics 3.4 (2018): 101-103.
  14. Amizic , and Baraba A. "Esthetic intracanal posts". Acta stomatologica Croatica 50.2 (2016): 143-150.
  15. Perdigao , et al. "The effect of saline on the bond strengths of fiber posts". Dental Materials 22.8(2006): 752-758.
  16. Lee , et al. "Shear bond strength of composite resin to high performance polymer PEKK according to surface treatments and bonding materials". The Journal of Advanced Prosthodontics 9.5 (2017): 350-357.
  17. Goracci C., et al. "The Adhesion Between fiber Posts And Root Canal Walls: Comparison Between Microtensile And Push-Out Bond Strength Measurements". European Journal of Oral Sciences 4 (2004): 353-361.
  18. Attia , et al. "Effect of different surface treatments on bond strength of milled polyetheretherketone posts". Journal of Prosthetic Dentistry S0022-3913.20 (2021): 30615-30616.
  19. Durski , et al. "Push-out bond strength evaluation of glass fiber posts with different resin cements and application techniques". Operative Dentistry 41.1 (2015): 103-110.
  20. Elbanna K., et al. "Assessment of push out bond strength and cement thickness for oval root canals restored with different post techniques". Egyptian Dental Journal 4 (2019): 3855-3870.
  21. Valdivia , et al. "Effect of surface treatment of fiberglass posts on bond strength to root dentin". Brazilian Dental Journal 25.4 (2014): 314-320.
  22. Fokasa , et al. "The effects of surface treatments on tensile bond strength of polyether-ketone-ketone (PEKK) to veneering resin". Journal of the Mechanical Behavior of Biomedical Materials 93(2019): 1-8.
  23. Mumcu , et al. "Comparison of micro push-out bond strengths of two fiber posts luted using simplified adhesive approaches". Dental Materials Journal 29.3 (2010): 286-296.
  24. Mosharraf R and Haerian "Push-out bond strength of a fiber post system with two resin cements". Dental Research Journal (Isfahan) 8.1 (2011): S88-93.
  25. El Mourad "Assessment of bonding effectiveness of adhesive materials to tooth structure using bond strength test methods: A review of literature". The Open Dentistry Journal 12(2018): 664-678.
  26. Armstrong S., et al. "Denaturation temperatures of dentin matrices. I. effect of demineralization and dehydration". JOE 7(2006): 638-641.
  27. Oskoee , et al. "Push-out bond strength of fiber posts to intraradicular dentin using multimode adhesive system". Journal of Endodontics 42.12(2016): 1794-1798.
  28. Arslan , et al. "Influence of different surface treatments on push‑out bond strengths of fiber‑reinforced posts luted with dual‑cure resin cement". Nigerian Journal of Clinical Practice 19.2(2016): 218-222.
  29. Lee K.S., et al. "Corrigendum to “biomechanical evaluation of a tooth restored with high performance polymer PEKK post-core system: A 3D finite element analysis”. BioMed Research International (2017): 7196847.
  30. Fuhrmann G., et al. "Resin bonding to three types of polyaryletherketones (PAEKs) - Durability and influence of surface conditioning". Dental Materials 3 (2014): 357-363.
  31. Wang C., et al. "Effects of surface treatments on the bonding properties of polyetherketoneketone to dentin: An in vitro study". Journal of Prosthetic Dentistry 5 (2021): 709.e1-709.e10.
  32. Spazzin , et al. "Morphological analysis of glass, carbon and glass/carbon fiber posts and bonding to self or dual-cured resin luting agents". Journal of Applied Oral Science 17.5 (2009): 476-480.


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: © 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.


Acceptance rate30%
Acceptance to publication20-30 days
Impact Factor1.278

Indexed In

News and Events

  • Certification for Review
    Acta Scientific certifies the Editors/reviewers for their review done towards the assigned articles of the respective journals.
  • Submission Timeline for Upcoming Issue
    The last date for submission of articles for regular Issues is July 10, 2024.
  • Publication Certificate
    Authors will be issued a "Publication Certificate" as a mark of appreciation for publishing their work.
  • Best Article of the Issue
    The Editors will elect one Best Article after each issue release. The authors of this article will be provided with a certificate of "Best Article of the Issue"
  • Welcoming Article Submission
    Acta Scientific delightfully welcomes active researchers for submission of articles towards the upcoming issue of respective journals.

Contact US