Influence of Khat Extract (Catha edulis) on Corrosion Resistance of Co-Cr Dental Alloys

Authors

  • Rassam Al-Subari Department of prosthodontic, Faculty of Dentistry, International University for Science and Technology, Syria.
  • Nadia Merzouk Department of prosthodontic, Faculty of Dentistry, University Mohammed V, Rabat, Morocco.
  • Nasser Kabak Department of prosthodontic, Faculty of Dentistry, International University for Science and Technology, Syria.
  • Abdullah Guenbour Laboratory of corrosion and electrochimie, Faculty of Sciences, University Mohammed V, Rabat, Morocco.
  • Sadeq Ali Al-Maweri Department of Oral Medicine and Diagnostic Sciences, AlFarabi Colleges for Dentistry and Nursing, Riyadh, Saudi Arabia; Department of Oral Medicine, Oral Pathology and Oral Radiology, Faculty of Dentistry, Sana’a University, Yemen.
  • Mohammed Nasser Alhajj http://orcid.org/0000-0003-4477-3024

DOI:

https://doi.org/10.14295/bds.2021.v24i2.2248

Abstract

Objective: The aim of this experimental study was to assess the effect of khat extract with different concentrations on the corrosion resistance of cobalt-chromium (Co-Cr) dental alloys used for removable denture. Material and Methods: The corrosion resistance of three Co-Cr alloys (Neobond II®, Kera 501® and PD Casta H®) was evaluated in artificial saliva in presence of three different concentrations of khat extracts. Fusayama-Meyer artificial saliva was used as a reference solution. The corrosion properties of the alloys were analyzed using potentiodynamic polarization, electrochemical impedance spectroscopy and surface analysis. The data was presented in means, standard deviations, and related figures. Comparison between the different concentrations was done using 1-way ANOVA test. The surface analysis was performed using scanning electron microscopy (SEM). Results: the results showed that the corrosion resistance of the three alloys tested (Neobond II®, Kera 501® and PD Casta H®) decreased in artificial saliva containing khat extract compared with that of the reference solution. Additionally, the corrosion resistance of the three Co-Cr dental alloys decreased by increasing the concentration of khat extract. Furthermore, the results indicate that Neobond II® alloy showed the least corrosion resistance compared with that of Kera 501® and PD Casta H® alloys. Conclusion: Khat extract with different concentrations had negative impact on the corrosion resistance of Cr-Co alloys. More in-vivo studies are highly recommended to confirm the results of the present study

 

Keywords

Khat; Catha edulis; Partial denture; Corrosion resistance.

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Published

2021-03-31

How to Cite

1.
Al-Subari R, Merzouk N, Kabak N, Guenbour A, Al-Maweri SA, Alhajj MN. Influence of Khat Extract (Catha edulis) on Corrosion Resistance of Co-Cr Dental Alloys. BDS [Internet]. 2021 Mar. 31 [cited 2025 Aug. 21];24(2). Available from: https://bds.ict.unesp.br/index.php/cob/article/view/2248

Issue

Vol. 24 No. 2 (2021): Apr - Jun / 2021 - published Mar 2021

Section

Clinical or Laboratorial Research

License

Brazilian Dental Science uses the Creative Commons (CC-BY 4.0) license, thus preserving the integrity of articles in an open access environment. The journal allows the author to retain publishing rights without restrictions.

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