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. Sep-Oct 2016;6(5):447-452.
doi: 10.4103/2231-0762.192934. Epub 2016 Oct 24.

Comparison of Antibacterial Efficacy of Coconut Oil and Chlorhexidine on Streptococcus mutans: An in vivo Study

Free PMC article

Comparison of Antibacterial Efficacy of Coconut Oil and Chlorhexidine on Streptococcus mutans: An in vivo Study

Faizal C Peedikayil et al. J Int Soc Prev Community Dent. .
Free PMC article


Aims: Streptococcus mutans is the most common organism causing dental caries. Various chemotherapeutic agents are available that help in treating the bacteria, with each having their own merits and demerits. Recent research has shown that coconut oil has anti-inflammatory and antimicrobial action. Therefore, the present was conducted to determine the antibacterial efficacy of coconut oil and to compare it with chlorhexidine.

Materials and methods: A total of fifty female children aged 8-12 years were included in the study. Twenty five children were randomly distributed to each group, i.e., the study group (coconut oil) and the control group (chlorhexidine). The participants were asked to routinely perform oil swishing with coconut oil and chlorhexidine and rinse every day in the morning after brushing for 2-3 minutes. S. mutans in saliva and plaque were determined using a chairside method, i.e., the Dentocult SM Strip Mutans test. Patients were instructed to continue oil swishing for 30 days. S. mutans. counts in plaque and saliva on day 1, day 15, and day 30 were recorded and the results were compared using Wilcoxon matched pairs signed ranks test.

Results: The results showed that there is a statistically significant decrease in S. mutans. count from coconut oil as well as chlorhexidine group from baseline to 30 days. The study also showed that in comparison of coconut oil and chlorhexidine there is no statistically significant change regarding the antibacterial efficacy.

Conclusion: Coconut oil is as effective as chlorhexidine in the reduction of S. mutans.

Keywords: Coconut oil; Streptococcus mutans; dental caries.


Figure 1
Figure 1
Raised colonies Raised colonies on strip with chart provided by manufacturer

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    1. Signoretto C, Burlacchini G, Faccioni F, Zanderigo M, Bozzola N, Canepari P. Support the role of Candida spp. in extensive caries lesions of children. New Microbiol. 2009;32:101–7. - PubMed
    1. Krzyściak W, Jurczak A, Kościelniak D, Bystrowska B, Skalniak A. The virulence of Streptococcus mutans and the ability to form biofilms. Eur J Clin Microbiol Infect Dis. 2014;33:499–515. - PMC - PubMed
    1. Lakade LS, Shah P, Shirol D. Comparison of antimicrobial efficacy of chlorhexidine and combination mouth rinse in reducing the Mutans streptococcus count in plaque. J Indian Soc Pedod Prev Dent. 2014;32:91–6. - PubMed
    1. Asokan S. Oil pulling therapy. Indian J Dent Res. 2008;19:169. - PubMed
    1. Hebbar A, Keluskar V, Shetti A. Oil pulling-Unravelling the path of mystic cure. J int Oral Health. 2010;2:11–4.