Key Takeaway
Coconut oil pulling for 10 minutes daily significantly reduced supragingival plaque accumulation over 4 days compared to a distilled water control in a crossover trial.
Summary
This randomized crossover clinical trial investigated whether oil pulling with coconut oil could reduce four-day supragingival plaque growth. Participants were randomly assigned to either coconut oil pulling (10 minutes daily) or a distilled water control, with a washout period between phases. Plaque was assessed using the Quigley-Hein plaque index.
The coconut oil pulling group demonstrated significantly lower plaque index scores compared to the distilled water control group after four days of plaque accumulation. The crossover design strengthened the findings by allowing each participant to serve as their own control, reducing inter-individual variability.
The study supports the hypothesis that the antimicrobial properties of coconut oil -- particularly its lauric acid content -- can meaningfully reduce bacterial plaque formation in the short term. The authors suggested oil pulling could serve as a useful adjunct to standard oral hygiene practices, especially in populations with limited access to conventional mouthwash products.