Modulation of implants PEEK to composite resin shear bond strength and surface roughness on pre-treatment with contemporary air abrasion techniques vs photodynamic therapy vs conventional diamond grit bur

Qamar Z 1 , Zeeshan T 2 , Alqahtani WMS 3 , Alanazi A 4 , Khalid Aqeel Almejlad N 5 , Ahmed Khan T 6 Show all authors , Samran A 7

Affiliations 

  • 1 Department of O&MFS and Diagnostic Sciences, Faculty of Dentistry, Riyadh Elm University, Riyadh, Saudi Arabia. Electronic address: zeeshan.qamar@ymail.com
  • 2 Department of Oral and Craniofacial Sciences, Faculty of Dentistry, University of Malaya, Kuala Lumpur, Malaysia
  • 3 Department of Prosthetic Dentistry, College of Dentistry, King Khalid University, Abha, Saudi Arabia
  • 4 Dental Care Complex, Riyadh, Saudi Arabia
  • 5 Ministry of Health, C1 Riyadh Health cluster Alshifa 1 primary healthcare
  • 6 Faculty of Pharmacy, Riyadh Elm University, Riyadh, Kingdom of Saudi Arabia
  • 7 Department of Restorative and Prosthetic Dental Sciences, College of Dentistry, Dar Aluloom University, Riyadh, KSA; Department of Prosthodontics, College of Dentistry, Ibb University, Ibb, Yemen
Photodiagnosis Photodyn Ther, 2023 Sep;43:103689.
PMID: 37414110 DOI: 10.1016/j.pdpdt.2023.103689

Abstract

AIM: The chief aim of the study was to determine/equate the surface roughness (SRa) and shear bond strength (BS) of pretreated PEEK discs with contemporary air abrasion techniques, photodynamic (PD) therapy by curcumin photosensitizer (PS) and conventional diamond grit straight fissure bur adhered to the composite resin discs.

MATERIAL AND METHOD: Two hundred discs of PEEK were prepared of 6 mm × 2 mm × 10 mm dimension. The discs were randomly divided into five groups (n = 40) for treatment, Group I: treatment with deionized distilled water (control group); Group II: PD therapy using curcumin PS; Group III: discs treated and abraded with air-borne particles (ABP) silica (30 μm particle size) modified alumina (Al); Group IV: ABP of alumina (110 μm particle size); and Group V: The PEEK were finished with 600-μm grit size straight diamond cutting bur installed in high speed hand-piece. The surface profilometer was used to evaluate the values of surface roughness (SRa) of pretreated PEEK discs. The discs were luted and bonded to discs of composite resin. The bonded PEEK samples were placed in Universal testing machine to evaluate shear BS. The type of BS failure for PEEK discs pre-treated with five regimes respectively was evaluated under stereo-microscope. The data was statistically analyzed using one-way ANOVA and the comparisons between mean values of shear BS were evaluated by Tukey's test (ρ≤0.05).

RESULTS: The PEEK samples pre-treated with diamond cutting straight fissure burs displayed statistically significant highest value of SRa values (3.258± 0.785 µm). Similarly, the shear BS was observed to be higher for the PEEK discs pre-treated with straight fissure bur (22.37±0.78 MPa). A comparable difference but not statistically significant difference was observed between PEEK discs pre-treated by curcumin PS and ABP-silica modified alumina (ρ ≥ 0.05).

CONCLUSION: PEEK discs pre-treated with diamond grit straight fissure bur displayed highest values of SRa and shear BS. It was trailed by ABP-Al pre-treated discs; whereas the SRa and shear BS values for the discs pre-treated with ABP-silica modified Al and curcumin PS did not show competitive difference.

* Title and MeSH Headings from MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine.

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