Efficacy of Sesame-Based Oil Pulling in Plaque Reduction: A Randomized Controlled Trial

Objectives: To evaluate and compare the plaque-reducing efficacy of sesame-based oil pulling versus distilled water in a randomized controlled, examiner-blinded parallel-group study. Materials and Methods: Forty participants with gingivitis (community periodontal index of treatment needs grade 1 or 2) were randomly assigned to either the test group (sesame-based oil) or the control group (distilled water). Participants were instructed to perform oil pulling daily in the morning for 15 min over an eight-week period. The Rustogi Modified Navy Plaque Index (RMNPI) and gingival bleeding index (GBI) were evaluated at the baseline, as well as after four and eight weeks. Additionally, biofilm samples were collected for microbiological analysis. Results: The RMNPI was statistically significantly reduced after eight weeks of pulling with sesame-based oil (p < 0.001), as well as with distilled water (p < 0.001), without a significant difference between the groups. The GBI was statistically significantly reduced after eight weeks of pulling with sesame-based oil (p < 0.002), as well as with distilled water (p < 0.002), without a significant difference between the groups. No significant microbiological changes were detected in biofilm samples. Conclusions: Both plaque and gingival indices significantly decreased with oil pulling after eight weeks of intervention. Preclinical studies are necessary to clarify the mechanism of plaque reduction by oil pulling.