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History
Mentioned in the Ayurvedic text, Charaka Samhita as 'Kavala Graha' or 'Kavala Gandoosha'. The procedure for the Gandoosha method suggests mouthful of more oil, while the Kavala method suggests a more comfortable amount of oil.

The human mouth contains billions of microorganism that has the potential to develop into systemic diseases. This ancient therapy suggests the extraction of toxins is capable of enhancing oral care as well as full body care.

Procedure
A tablespoon of herbal oil is vigorously swished around in the mouth preferably in the morning in an empty stomach for 15 to 20 minutes. The oil pulls out chemical, bacterial and environmental toxins deep within and traps it in the oil, transforming the oil into a whiter and milkier substance. Avoid swallowing the oil. At the end of the session, the oil is spit into a trashcan to avoid clogging of drains. Brush teeth and tongue regularly.

Research and Studies
T. Durai Anand, C. Pothiraj, R. M. Gopinath and B. Kayalvizhi published a study in February 12, 2008 that observed the effects of oil pulling on dental caries causing bacteria. Individuals with dental caries were selected in this 40 day study. Each subject washed their mouth with a saline solution and swabbed to record the number of bacterial colonies per ml before oil pulling. Bacteria S. mutans and L. Acidophilus were used as reference strains. At the end of the study, researches witnessed on average 20% decrease in the number of bacterial colonies per ml.

Deepika Jauhari, Nikhil Srivastava, Vivek Rana, and Preetika Chandna performed a study from May to August in 2015 that compared the results of four methods of dental care. Jauhari selected 52 healthy children between the ages of 6 to 12 and split them into four groups; 1: fluoride, group 2: herbal, group 3: oil pulling and group 4: control. After two weeks, results were recorded. During the study, oil pulling did not reveal additional benefits.