Healthy teeth start with healthy gums Gum problems can be caused by the build up of plaque bacteria and if left untreated can affect your oral health. Corsodyl Fresh Mint daily mouthwash provides 24 hour protection against plaque build up. Clinically proven to reduce plaque and help prevent further build up to keep your gums and teeth healthy. Corsodyl Fresh Mint also helps to reduce bacteria which causes bad breath and contains fluoride to strengthen teeth and help prevent cavities.