The Open Dentistry Journal




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RESEARCH ARTICLE

The Prevalence of Streptococcus Mutans with Different ABO Blood Groups Among Healthy College Students



Sumayah Al-Mahmood1, *, Aedah Z. Al-Kaisy2, Maha A. Mahmood3, Zainab A. Aldhaher3, Abbas Sabri3
1 Department of Basic Sciences, College of Dentistry, Al-Iraqia University, Baghdad, Iraq
2 Department of Physiology, College of Medicine, Baghdad University, Baghdad, Iraq
3 Department of Basic Sciences, College of Dentistry, Baghdad University, Baghdad, Iraq

Abstract

Objective:

This study was conducted to determine the correlation between the occurrence of Streptococcus mutans (S. mutans) which is considered as the main pathogen responsible for the initiation and development of dental caries with blood groups and Rhesus (Rh) factor that are considered as a genetic predictor of having dental caries among healthy students.

Methods:

Saliva and blood samples were taken from 40 healthy students whose ages were between 19-23 years old in the College of Dentistry/Al-Iraqia University in Baghdad, Iraq. Estimation of the flow rate and pH was done for all the collected saliva samples within 5 min of saliva collection. Then, 100 µL of saliva was cultured on Mitis salivarius bacitracin agar (MSBA) at 37 °C for 48 h. The colonies of S. mutans were identified by their morphology and biochemical tests. Later, 1 to 2 drops of blood were taken from each student’s thumb to determine the blood group.

Results:

This study showed there was a greater prevalence of S. mutans among students of blood group A in contrast to the blood group O. In addition, Rh+ groups were dominant than Rh- groups among the study samples.

Conclusion:

S. mutans levels were higher in the blood group A followed by AB, B, O blood groups among the college students studied.

Keywords: Streptococcus mutans, Blood groups, Rhesus factor, Dental caries, PH, Salivary flow rate.


Article Information


Identifiers and Pagination:

Year: 2020
Volume: 14
First Page: 45
Last Page: 51
Publisher Id: TODENTJ-14-45
DOI: 10.2174/1874210602014010045

Article History:

Received Date: 31/10/2019
Revision Received Date: 16/12/2019
Acceptance Date: 27/12/2019
Electronic publication date: 18/02/2020
Collection year: 2020

© 2020 Al-Mahmood et al.

open-access license: This is an open access article distributed under the terms of the Creative Commons Attribution 4.0 International Public License (CC-BY 4.0), a copy of which is available at: (https://creativecommons.org/licenses/by/4.0/legalcode). This license permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.


* Address correspondence to this author at the Department of Basic Sciences, College of Dentistry, Al-Iraqia University; Baghdad, Iraq; Tel: +9647736727734;
E-mail: sumayah_almahmood@aliraqia.edu.iq




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