In-Vitro Assessment of the Corrosion Potential of an Oral Strain of Sulfate-Reducing Bacteria on Metallic Orthodontic Materials

Umarevathi Gopalakrishnan (), Kavitha Thiagarajan, A. Sumathi Felicita, Pallabhi Gosh, Abdulrahman Alshehri, Wael Awadh, Khalid J. Alzahrani, Fuad M. Alzahrani, Khalaf F. Alsharif, Ibrahim F. Halawani, Saleh Alshammeri, Ahmed Alamoudi, Dhalia H. Albar, Hosam Ali Baeshen and Shankargouda Patil ()
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Umarevathi Gopalakrishnan: Department of Orthodontics, Sri Venkateswara Dental College and Hospital, Thalambur, Chennai 600130, India
Kavitha Thiagarajan: Department of Dental Surgery, Government Stanley Medical College and Hospital, Chennai 600001, India
A. Sumathi Felicita: Department of Orthodontics, Saveetha Dental College and Hospital, Saveetha Institute of Medical and Technical Sciences, Chennai 600077, India
Pallabhi Gosh: Biomedical Engineer, Saveetha Dental College and Hospital, Chennai 600077, India
Abdulrahman Alshehri: Division of Orthodontics, Department of Preventive Dental Sciences, Faculty of Dentistry, Jazan University, Jazan 45142, Saudi Arabia
Wael Awadh: Division of Orthodontics, Department of Preventive Dental Sciences, Faculty of Dentistry, Jazan University, Jazan 45142, Saudi Arabia
Khalid J. Alzahrani: Department of Clinical Laboratories Sciences, College of Applied Medical Sciences, Taif University, Taif 21944, Saudi Arabia
Fuad M. Alzahrani: Department of Clinical Laboratories Sciences, College of Applied Medical Sciences, Taif University, Taif 21944, Saudi Arabia
Khalaf F. Alsharif: Department of Clinical Laboratories Sciences, College of Applied Medical Sciences, Taif University, Taif 21944, Saudi Arabia
Ibrahim F. Halawani: Department of Clinical Laboratories Sciences, College of Applied Medical Sciences, Taif University, Taif 21944, Saudi Arabia
Saleh Alshammeri: Department of Optometry, College of Applied Medical Sciences, Qassim University, Buraydah 1162, Saudi Arabia
Ahmed Alamoudi: Oral Biology Department, Faculty of Dentistry, King Abdulaziz University, Jeddah 22254, Saudi Arabia
Dhalia H. Albar: Department of Preventive Dental Sciences, College of Dentistry, Jazan University, Jazan 45142, Saudi Arabia
Hosam Ali Baeshen: Department of Orthodontics, Faculty of Dentistry, King Abdulaziz University, Jeddah 21589, Saudi Arabia
Shankargouda Patil: College of Dental Medicine, Roseman University of Health Sciences, South Jordan, UT 84095, USA

IJERPH, 2022, vol. 19, issue 22, 1-9

Abstract: Aim: Orthodontic literature is scant when it comes to microbial corrosion. The oral prevalence of many bacteria which are capable of causing microbial corrosion is reported in the dental literature. The aim of this study is to experimentally determine the corrosive potential of an oral strain of Sulfate-reducing bacteria. Materials and Methods: Stainless steel (SS) bracket, stainless steel archwire, NiTi archwire, Titanium molybdenum (TMA) archwire, and titanium miniscrew were immersed in five media which included Artificial saliva (group I), Sulfate rich artificial saliva (group II), API agar medium specific for SRB (group III), AS + API medium+ bacterial strain (group IV), SRAS+ API medium+ bacterial strain (group V). The materials were then subjected to Scanning electron microscopy and energy-dispersive X-ray analysis (EDX). Results: Materials in groups I, II, and III did not show any surface changes whereas materials in groups IV and V which contained the bacteria showed surface changes which were erosive patches suggestive of corrosion. EDX analyses were in line with similar findings. Conclusion: This in vitro study suggested that the oral strain of Sulfate-reducing bacteria was able to induce corrosive changes in the experimental setup.

Keywords: archwires; corrosion; metallic orthodontic brackets; mini implants; sulfate reducing bacteria (search for similar items in EconPapers)
JEL-codes: I I1 I3 Q Q5 (search for similar items in EconPapers)
Date: 2022
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