Bacterial plaque produces irritants which cause gingivitis and periodontitis ultimately leading to loss of teeth Chemical control of plaque is achieved effectively with Hexidine As an antimicrobial Hexidine prevents secondary infections arising out of poor oral hygiene It is particularly useful in plaque control for Bed ridden patients following surgery or in the ICU Respiratory tract infections such as pharyngitis tonsillitis post tonsillectomy surgery preventing complications of pregnancy gingivitis and bacterial endocarditis Preventing dental caries