Use coconut oil. While you can get the same bacteria-fighting benefits with sesame or sunflower oil, coconut oil has the added benefit of lauric acid, which is well-known for its anti-microbial agents, Emery says, making it more effective. Also, a recent study found that coconut oil may help prevent tooth decay. Final Thoughts on Coconut Oil Pulling. Coconut oil pulling is a common Ayurvedic practice that can help you get whiter teeth, and it’s been used to treat tooth decay, kill bad breath, heal bleeding gums, prevent heart disease, reduce inflammation, soothe throat dryness, prevent cavities, heal cracked lips, boost the immune system, improve acne, strengthen the gum and jaws, and treat TMJ. Adding coconut oil pulling to your regular oral hygiene routine is said to have these benefits: Prevents dental caries. Improves oral hygiene. Decreases oral microbial count. Inhibits plaque from adhering to teeth and oral surfaces. Reduces gingivitis. Reduces halitosis. Whitens teeth.