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J Indian Soc Pedod Prev Dent. 2018 Oct-Dec;36(4):386-390. doi: 10.4103/JISPPD.JISPPD_204_18.

Salivary levels of Streptococcus mutans and Streptococcus sanguinis in early childhood caries: An in vivo study.

Author information

1
Department of Pediatric and Preventive Dentistry, Maharishi Markandeshwar College of Dental Sciences and Research, Ambala, Haryana, India.
2
Department of Microbiology, Maharishi Markandeshwar Institute of Medical Sciences and Research, Ambala, Haryana, India.
3
Department of Oral and Maxillofacial Surgery, Maharishi Markandeshwar College of Dental Sciences and Research, Ambala, Haryana, India.

Abstract

Background:

The oral microflora primarily involved in early childhood caries (ECC) is Streptococcus mutans while Streptococcus sanguinis is related to healthy caries-free mouth. The antagonism between the two at biological level is well recognized.

Aim:

This study aims to compare the pre- and posttreatment salivary levels of S. mutans and S. sanguinis in ECC.

Methods:

This cross-sectional study was performed on 40 eligible participants. Clinical examination was done, and decayed teeth were recorded. Pre- and Posttreatment saliva sample was taken, processed and bacterial counts were compared.

Results:

A statistically significant posttreatment reduction was found in S. mutans counts; however, a significant posttreatment elevation was seen in S. sanguinis counts (P < 0.001) using Wilcoxon signed-rank test. A significant weak positive correlation was found between S. mutans and decayed teeth in the mouth (r = 0.366 and P = 0.028) using Spearman's correlation. No significant gender association was found between pre- and posttreatment S. mutans and S. sanguinis counts (P = 0.908) and also between decayed teeth (P = 0.321) using Mann-Whitney U-test.

Conclusion:

Complete dental treatment procedure showed significant reduction and elevation in S. mutans and S. sanguinis counts, respectively. A positive association was observed between S. mutans and ECC while S. sanguinis were positively associated with posttreatment oral environment.

KEYWORDS:

Dental caries; dental treatment; microflora; oral environment; saliva

PMID:
30324930
DOI:
10.4103/JISPPD.JISPPD_204_18
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