Home About us Editorial board Ahead of print Current issue Archives Submit article Instructions Subscribe Contacts Login 
  • Users Online: 640
  • Home
  • Print this page
  • Email this page
Year : 2022  |  Volume : 29  |  Issue : 3  |  Page : 236-243

Profiles of sugar fermenting bacteria of the oral cavity among children with dental caries attending stomatology services at Ruhengeri referral hospital in Musanze District, Northern Rwanda

1 Department of Biomedical Laboratory Sciences, INES Ruhengeri Institute of Applied Sciences, Ruhengeri, Rwanda
2 Department of Medical Microbiology and Medical Laboratory Sciences, School of Biomedical Sciences, Jomo Kenyatta University of Agriculture and Technology, Juja, Kenya
3 Department of Midwifery and Gender, Moi University, Eldoret, Kenya

Correspondence Address:
Callixte Yadufashije
Associate Professor, Department of Biomedical Laboratory Sciences, INES Ruhengeri-Institute of Applied Sciences, P.O.Box: 155 Ruhengeri
Login to access the Email id

Source of Support: None, Conflict of Interest: None

DOI: 10.4103/npmj.npmj_78_22

Rights and Permissions

Background: Dental caries remains a public health threat of concern among children. About 2.3 billion people are affected by dental caries, of which 530 million are children globally. Objective: This study was carried out to identify sugar fermenting bacteria in the oral cavity and their antibiotic susceptibility pattern, assess the association with sugar fermenter bacteria and dental caries and evaluate dental caries outcomes among children. Materials and Methods: This was a cross-sectional study conducted between October 2021 and February 2022 at Ruhengeri Referral Hospital. About 136 oral swab samples were collected from children with and without dental caries at 1:1 ratio. The samples were put in Stuart sterile container and transported to INES-clinical microbiology laboratory for microbial identification. Logistic regression analysis of demographic characteristics was performed to study the relationship between demographic variables and dental caries. Chi-square test was performed for the association between variables. Results: About 67.6% were male, while children of age 7–9 years (64.7%) dominated the age groups. Lactobacilli spp (15.29%) and Streptococcus mutans (12.94%) were the most predominant microorganisms observed in the oral cavity among children with dental caries. The S. mutans (x2 = 27.03, P < 0.00001, 95% confidence interval [CI]=0.2901–0.5785), S. aureus (x2 = 34.59, P < 0.00001, 95% CI = 0.3541–0.6292), Enterobacter aerogenes (x2 = 13.5, P = 0.000239, 95% CI = 0.151–0.4622), Serratia marcescens (x2 = 11.64, P = 0.00645, 95% CI = 0.1275–0.4418) and Klebsiella pneumonia (x2 = 13.51, P = 0.000237, 95% CI = 0.1511–0.4623) were significantly associated with dental caries. Teeth loss (x2 = 51.04, P < 0.00001, 95% CI = 0.4757–0.7205), teeth pain (x2 = 5.05, P = 0.0246, 95% CI = 0.0249–0.33499), and infection (x2 = 4.73, P = 0.02964, 95% CI = 0.0186–0.3441) were dental outcomes associated with tooth decay. Ciprofloxacin, clindamycin, and amoxicillin were the most sensitive antibiotics, while vancomycin and chloramphenicol were the most resistant. Conclusion: Sugar consumption favours the growth of sugar fermenter bacteria that cause dental caries among children. Dental caries is associated with adverse oral health outcomes among children. Oral health education is recommended for children. Parents are advised to reduce the consumption of sugary food for their children for oral health safety.

Print this article     Email this article
 Next article
 Previous article
 Table of Contents

 Similar in PUBMED
   Search Pubmed for
   Search in Google Scholar for
 Related articles
 Citation Manager
 Access Statistics
 Reader Comments
 Email Alert *
 Add to My List *
 * Requires registration (Free)

 Article Access Statistics
    PDF Downloaded65    
    Comments [Add]    

Recommend this journal