Antibiogram types of bacterial isolates from dental caries patients attending clinic at a teaching hospital in Nigeria
1 Department of Medical Laboratory Sciences, College of Medicine, Ambrose Alli University, Ekpoma.
2 Department of Microbiology, Faculty of Life Sciences, Ambrose Alli University, Ekpoma.
3 Department of Community Medicine and Primary Health Care, Faculty of Clinical Sciences, College of Medicine, Ambrose Alli University, Ekpoma.
Research Article
International Journal of Scientific Research Updates, 2021, 01(01), 025–041.
Article DOI: 10.53430/ijsru.2021.1.1.0026
Publication history:
Received on 09 March 2021; revised on 15 April 2021; accepted on 17 April 2021
Abstract:
Around the world dental caries is amongst the commonest disease affecting all age groups and yet seen by all as less common and severe; especially among Africans. Worrisome, our recent study showed isolated dental caries bacteria to be resistant to available antibiotics. In this study, antibiogram typing of bacteria isolated from dental caries of patients attending the dental clinic at Irrua Specialist Teaching Hospital, Nigeria were investigated. The study involves 223 bacteria positive samples (Streptococcus mutans = 150; Streptococcus sobrinus = 36; Lactobacillus acidophilus = 22; Streptococcus salivarius = 10; Streptococcus mitis = 4) collected and screened against 24 antibiotics divided into 8 groups of 3 each. Antibiogram study was conducted using Ajumali’s mnemonic coding and the results were presented in tables. The Ajumali’s mnemonic coding showed that no two strains of Streptococcus salivarius and Streptococcus mitis were repeated. However, 18.8%, 43.71%, and 61.11% of Lactobacillus acidophilus, Streptococcus mutans, and Streptococcus sobrinus strain respectively presented repeated Ajumali’s mnemonic codes. The “00000005, 02000005, 03010005, 01010005 and 63112005” mnemonic codes appear in both S. mutans and S. sobrinus isolates, “02000004’’ appears in both L. acidophilus and S. mutans, 03000005 appears in both S. salivarius and S. mutans and 03110005 in S. mitis and S. sobrinus. The repetition of mnemonic codes from L. acidophilus, S. mutans, and S. sobrinus isolates and the appearance of codes between isolates indicate that some isolates may have strains with phenotypical similarities.
Keywords:
Antibiogram types; Bacterial isolates; Dental caries; Ajumali’s mnemonic coding
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