Faisal K. Alotaibi1, Mustafa F. Almutawwif1, Ehab A. Alsayed1, Mohammed R. Tamboosi1, Khaled R. Althebeti1, Wahdan M. A. Elkwatehy2, Abdel-Rahman Youssef3*
Dental intern, Faculty of Dentistry, Umm Al-Qura University, Saudi Arabia1
Assistant Professor of Dental Public Health and Preventive Dentistry, Faculty of Dentistry, Umm Al-Qura University, Saudi Arabia, and Faculty of Dentistry, Mansoura University, Egypt2
Associate Professor of Microbiology and Immunology, Faculty of Dentistry, Umm Al-Qura University, Saudi Arabia, and Faculty of Medicine, Suez Canal University, Egypt3
Special Issue: Latest Methods in Increasing the Efficiency and Quality in Dentistry | Pages: 1-6 | September 2023
DOI: https://doi.org/10.54940/ms61739747 | PDF
Received:16/06/2022 | Revised: 30/08/2022 | Accepted:24/09/2022
*Corresponding Author: Abdel-Rahman Youssef
Abstract
Background: The aim of the current study was to investigate bacterial colonization of the dental unit waterlines (DUWLs) in Umm Al-Qura University’s Dental Teaching Hospital in Makkah, Saudi Arabia.
Methods: Eight dental units were selected to collect 48 water samples from DUWls, two samples from each water outlet of the dental unit (handpiece, air-water syringe, and cup-filler water). Each sample (300 ml) was treated with sodium thiosulfate (10 mg /100 ml) and then were filtered using 0.2 µm synthetic filter paper. The filter was then placed on 5% blood agar and incubated for 48 hours at 37 oC incubator.
Results: The average number of heterotrophic plate count (HPC) bacteria in the water samples collected from the output of the 8 DUWLs was 57.79 colony-forming unit (CFU) per 300 ml water sample (0.19 CFU/ml). There were no statistically significant differences among CFU among the air/water syringe, the high-speed handpiece cooling water, or the cup filler water (p = 0.791). These findings were -within the acceptable limit according to Egyptian standards for drinking and domestic use of water.
Conclusions: The current study has shown the level of CFU in DUWLs is acceptable in the dental care unit water system at Umm Al-Qura University’s dental teaching hospital.
Keywords
Dental unit waterlines, bacterial colonization, heterotrophic plate count.
How to Cite
Alotaibi, F., Almutawwif, M., Alsayed, E., Tamboosi, M., Althebeti, K., Elkwatehy, W., & Youssef, A. (2023). Bacterial Colonization of the Dental Unit Waterlines in Dentistry UQU Teaching Hospital, Makkah, Saudi Arabia. Journal of Umm Al-Qura University for Medical Sciences, Special Issue: Latest Methods in Increasing the Efficiency and Quality in Dentistry, 1-6. https://doi.org/10.54940/ms61739747
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