Over 80% of the world population suffer tooth decay and over 80% of cavities occur inside pits and fissures in grooves on chewing surfaces of back teeth where the brush, saliva and fluoride or other remineralising agents cannot reach.   Although most food is left trapped between teeth after eating, sufficient acid forming carbohydrate like sugar is trapped inside pits and fissures to cause over 80%of cavities.   Supertooth has reserch projects to limit food being trapped while eating and to help displace trapped food after eating. Also to make it easy to chew fluoride toothpaste before brushing to ensure easy access of fluoride between teeth and inside pits and fissures to make sure remineralisation exceeds acid demineralisation.   Encourage your friends to join you and register for Supertooth Says updates on http://www.supertoothndk.org   Also please participate in annual surveys