Oil Pulling Research

9 peer-reviewed studies supporting this intervention. Evidence rating: C

9 Studies
4 RCTs
2 Meta-analyses
2008-2024 Year Range

Study Comparison

Study Year Type Journal Key Finding
Jong FJX et al. 2024 Systematic review and meta-analysis International journal of dental hygiene Large meta-analysis (25 trials, 1,184 participants) found oil pulling improved gingival health versus non-chlorhexidine mouthwashes (SMD -1.14) but chlorhexidine was superior for plaque reduction (SMD 0.33).
Gosavi HS et al. 2024 RCT International journal of clinical pediatric dentistry Oil pulling with virgin coconut oil reduced Streptococcus mutans colony counts and caries activity in children comparably to fluoridated mouthwash over 30 days.
Sezgin Y et al. 2023 RCT International journal of dental hygiene Randomized crossover trial found coconut oil and sesame oil equally effective for inhibiting plaque regrowth, with nearly identical plaque index scores (1.60 vs 1.49).
Peng T et al. 2022 Meta-analysis Healthcare (Basel, Switzerland) Meta-analysis of 9 RCTs found oil pulling significantly reduced salivary bacterial counts (MD 17.55, 95% CI 2.56-32.55) but showed no significant effect on plaque or gingival indices.
Woolley J et al. 2020 Systematic Review Heliyon Coconut oil pulling significantly reduces plaque and gingivitis indices comparable to chlorhexidine mouthwash, though evidence quality remains low to moderate.
Sezgin Y et al. 2020 RCT Complementary therapies in medicine 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.
Peedikayil FC et al. 2015 Study Nigerian Medical Journal Daily coconut oil pulling for 30 days significantly reduced plaque and gingivitis scores, with effects comparable to chlorhexidine mouthwash.
Asokan S et al. 2009 RCT Indian Journal of Dental Research Oil pulling with sesame oil was as effective as chlorhexidine mouthwash in reducing plaque and gingivitis over 10 days.
Asokan S et al. 2008 Study Journal of the Indian Society of Pedodontics and Preventive Dentistry Oil pulling with sesame oil for 10 minutes daily reduced Streptococcus mutans (cavity-causing bacteria) in saliva by 20% after 2 weeks.

Study Details

Jong FJX, Ooi DJ, Teoh SL

International journal of dental hygiene

Key Finding: Large meta-analysis (25 trials, 1,184 participants) found oil pulling improved gingival health versus non-chlorhexidine mouthwashes (SMD -1.14) but chlorhexidine was superior for plaque reduction (SMD 0.33).
View Summary

This systematic review and meta-analysis compared oil pulling to chlorhexidine and other mouthwash interventions across 25 RCTs with 1,184 total participants. It is one of the largest pooled analyses of oil pulling to date. Oil pulling showed clinically significant improvement in modified gingival index compared to non-chlorhexidine interventions. However, chlorhexidine consistently outperformed oil pulling for plaque reduction. Sesame oil was used in approximately half of the included trials. The authors identified a probable benefit of oil pulling for gingival health while noting very low certainty in the overall evidence, highlighting the need for higher-quality trials.

Gosavi HS, Tandon S, Rai TS, et al.

International journal of clinical pediatric dentistry

Key Finding: Oil pulling with virgin coconut oil reduced Streptococcus mutans colony counts and caries activity in children comparably to fluoridated mouthwash over 30 days.
View Summary

This randomized controlled trial compared the efficacy of oil pulling with virgin coconut oil versus fluoridated mouthwash on caries activity and Streptococcus mutans levels in children. Participants were divided into two groups and followed for 30 days, with salivary S. mutans colony-forming units (CFU/mL) measured at baseline and post-intervention.

Both the oil pulling and fluoridated mouthwash groups showed significant reductions in S. mutans CFU/mL counts from baseline. Importantly, the intergroup comparison revealed no statistically significant difference between the two interventions, suggesting that coconut oil pulling was as effective as fluoridated mouthwash at reducing the primary cariogenic bacterium.

The findings are notable because they demonstrate oil pulling antimicrobial efficacy in a pediatric population, where compliance with mouthwash protocols can be challenging. The authors concluded that oil pulling with virgin coconut oil represents a safe, natural alternative for reducing caries risk in children, particularly as an adjunct to regular brushing and flossing.

Sezgin Y, Memis Ozgul B, Maraş ME, et al.

International journal of dental hygiene

Key Finding: Randomized crossover trial found coconut oil and sesame oil equally effective for inhibiting plaque regrowth, with nearly identical plaque index scores (1.60 vs 1.49).
View Summary

This randomized crossover trial directly compared the two most commonly used oils for oil pulling - coconut oil and sesame oil - in 24 participants. After professional tooth cleaning, participants used either coconut or sesame oil for 4-day pulling cycles with a 14-day washout period before switching oils. Plaque regrowth, gingival inflammation, tooth staining, and bleeding were all comparable between the two oils. The findings suggest that either coconut or sesame oil can be used for oil pulling with equivalent plaque-inhibition effects, giving practitioners flexibility in oil choice based on personal preference.

Peng T, Cheng H, Wu T, et al.

Healthcare (Basel, Switzerland)

Key Finding: Meta-analysis of 9 RCTs found oil pulling significantly reduced salivary bacterial counts (MD 17.55, 95% CI 2.56-32.55) but showed no significant effect on plaque or gingival indices.
View Summary

This meta-analysis pooled data from 9 randomized controlled trials to evaluate the effectiveness of oil pulling for oral health outcomes. The analysis found that oil pulling significantly reduced salivary bacterial colony counts compared to controls. However, it did not produce statistically significant improvements in plaque index or gingival index scores. The authors concluded that oil pulling has modest antimicrobial benefits but called for more rigorous, better-reported clinical trials to strengthen the evidence base.

Woolley J, Gibbons T, Patel K, et al.

Heliyon

Key Finding: Coconut oil pulling significantly reduces plaque and gingivitis indices comparable to chlorhexidine mouthwash, though evidence quality remains low to moderate.
View Summary

This systematic review evaluated six clinical studies examining the effects of oil pulling with coconut oil on dental hygiene and oral health. The review included both randomized controlled trials and quasi-experimental studies with a combined participant pool spanning adolescents and adults.

Results showed that coconut oil pulling significantly reduced plaque index scores and gingival bleeding, with effects comparable to chlorhexidine mouthwash in several trials. The lauric acid in coconut oil was identified as a key antimicrobial agent, capable of inhibiting Streptococcus mutans and other cariogenic bacteria through saponification and emulsification mechanisms.

However, the authors noted that the overall quality of evidence was low to moderate, with small sample sizes and short study durations being common limitations. The review concluded that while coconut oil pulling shows promise as a complementary oral hygiene practice, more rigorous large-scale RCTs are needed to establish definitive clinical guidelines.

Sezgin Y, Memis Ozgul B, Alptekin NO

Complementary therapies in medicine

Key Finding: 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.
View 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.

Peedikayil FC, Sreenivasan P, Narayanan A

Nigerian Medical Journal

Key Finding: Daily coconut oil pulling for 30 days significantly reduced plaque and gingivitis scores, with effects comparable to chlorhexidine mouthwash.
View Summary

Study comparing coconut oil pulling to chlorhexidine for plaque and gingivitis control.

Asokan S, Emmadi P, Chamundeswari R

Indian Journal of Dental Research

Key Finding: Oil pulling with sesame oil was as effective as chlorhexidine mouthwash in reducing plaque and gingivitis over 10 days.
View Summary

This triple-blind randomized controlled trial compared oil pulling to chlorhexidine mouthwash for plaque-induced gingivitis.

Both groups showed similar significant reductions in plaque index, modified gingival scores, and total bacterial colony counts, establishing oil pulling as a viable alternative.

Asokan S, Rathan J, Muthu MS, et al

Journal of the Indian Society of Pedodontics and Preventive Dentistry

Key Finding: Oil pulling with sesame oil for 10 minutes daily reduced Streptococcus mutans (cavity-causing bacteria) in saliva by 20% after 2 weeks.
View Summary

This study examined whether traditional oil pulling could reduce levels of cavity-causing bacteria in the mouth.

Adolescents who practiced oil pulling with sesame oil for 10 minutes daily showed significant reductions in Streptococcus mutans counts in both plaque and saliva samples.

Evidence Assessment

C Limited Evidence

This intervention has preliminary evidence from early-stage research, mechanistic studies, or observational data. More rigorous trials are needed.