India, Feb. 28 -- For decades, dental patients have been conditioned to fear anything acidic, crunchy, or sweet. However, Dr Mark Burhenne, a San Francisco-based dentist with more than 40 years of experience, is turning traditional advice on its head. Also read | Dentist shares real reason you should flush your mouthwash down the toilet: 'Double risk of high blood pressure...'

In an Instagram post shared on February 25, Dr Burhenne identified six surprising foods that - despite their 'bad boy' reputations - are actually secret weapons for oral health.

It feels like a 'cheat', but Dr Burhenne argued that high-quality dark chocolate is more medicine than candy as raw cacao contains theobromine, a compound that helps harden tooth enamel, a...