Now, we know about the benefits and the method to be followed for Dantadhavana. But did you know that brushing teeth is contraindicated in certain conditions? Some of the conditions in which Dantadhavana is contraindicated are when the patient is suffering from Indigestion, Vomiting, Asthma, Cough, Stomatitis, Facial Palsy, Cardiac Disorders, Eye Diseases, Diseases of the head and ears.