The effect of oil pulling in comparison with chlorhexidine and other mouthwash interventions in promoting oral health: A systematic review and meta‐analysis

Author:

Jong Freda Jia Xin1ORCID,Ooi Der Jiun2ORCID,Teoh Siew Li3ORCID

Affiliation:

1. Department of Psychology, School of Medical and Life Sciences Sunway University Bandar Sunway Malaysia

2. Department of Oral Biology and Biomedical Sciences, Faculty of Dentistry MAHSA University Selangor Malaysia

3. School of Pharmacy Monash University Malaysia Bandar Sunway Malaysia

Abstract

AbstractObjectivesA meta‐analytic review was performed to critically synthesize the evidence of oil pulling on improving the parameters of gingival health, plaque control and bacteria counts against chlorhexidine and other mouthwash or oral hygiene practices.MethodsDatabases including Medline, Embase and bibliographies were searched from inception to 1 April 2023. Randomized controlled trials (RCTs) with 7 days or longer duration of oil pulling with edible oils in comparison to chlorhexidine or other mouthwashes or oral hygiene practice concerning the parameters of plaque index scores (PI), gingival index scores (GI), modified gingival index scores (MGI) and bacteria counts were included. Cochrane's Risk of Bias (ROB) tool and the Grading of Recommendations Assessment, Development and Evaluation (GRADE) framework were employed to determine the quality of evidence. Two authors independently conducted study selection and data extraction. Meta‐analyses of the effect of oil pulling on the parameters were conducted using an inverse‐variance random‐effects model.ResultsTwenty‐five trials involving 1184 participants were included. Twenty‐one trials comparing oil pulling (n = 535) to chlorhexidine (n = 286) and non‐chlorhexidine intervention (n = 205) were pooled for meta‐analysis. More than half of the trials (n = 17) involved participants with no reported oral health issues. The duration of intervention ranged from 7 to 45 days, with half of the trials using sesame oil. When compared to non‐chlorhexidine mouthwash interventions, oil pulling clinically and significantly improved MGI scores (Standardized mean difference, SMD = −1.14; 95% confidence interval [CI]: −1.31, −0.97). Chlorhexidine was more effective in reducing the PI scores compared to oil pulling, with an SMD of 0.33 (95% CI: 0.17, 0.49). The overall quality of the body of evidence was very low.ConclusionsThere was a probable benefit of oil pulling in improving gingival health. Chlorhexidine remained superior in reducing the amount of plaque, compared to oil pulling. However, there was very low certainty in the evidence albeit the clinically beneficial effect of oil pulling intervention.

Publisher

Wiley

Subject

Dentistry (miscellaneous)

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