Few cavities develop where plaque is seen with red food dye and the the brush and saliva have easy access.

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Acid causes demineralisation of teeth that exceeds remineralisation from saliva and fluoride tooth paste particularly inside pits and fissures on chewing surfaces where over 80% of cavities occur and brushing and saliva cannot reach to remineralise demineralised tooth. Fissure sealants block food access inside pits and fissures and greatly helps reduce decay.

Supertooth has developed a glass model of a fissure that shows how brushing cannot force toothpaste inside pits and fissures. However chewing pressure can force fissure sealants and toothpaste or food inside pits and fissures displacing previously trapped food.

Some foods like nuts, cheese and confection are hard to displace and like fissure sealants can block access to other foods and even displace trapped food after eating. Chewing such tooth friendly foods even sugarless confection, before and after every meal or snack, particularly sugar confection, cakes, sweet biscuits etc can help reduce demineralisation.

Confection and biscuit manufacturers can formulate sealant foods to also help saliva remineralise demineralised tooth. To support preventive measures as well as fluoridation, Dental authorities can support marketing sealant foods through fast food and confection outlets as well as supermarkets to greatly increase interest in oral health promotion projects. With the help of Supertooth and Good Food Friends teaching aids that develop better tooth care skills there is the potential to reduce the dental heath services escalating budget that has more than doubled to over $6billion in less than a decade while caries incidence remained much the same.

See below how chewing pressure displaces previously trapped food as it forces food between teeth and inside pits and fissures on chewing surfaces where brushing cannpt reach and almost all cavities occur.

Chewing fresh foods like celery after eating will force saliva into trapped food to dilute carbohydrate neutralise acid and remineralise demineralised tooth.

Before brushing twice a day after breakfast and before bed.
1. Floss or remove food from between teeth for better fluoride access.
2. Chew toothpaste on one end of a foam strip or soft rubber to force fluoride between teeth and inside grooves.

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Avoid eating acid forming food like sugar just before or to finish meals or snacks between meals to reduce the frequency of acid demineralisation. It is also important to help saliva neutralise acid and remineralise demineralised tooth as well as provide better access for fluoride toothpaste before brushing as seen in the experiment with the glass model of a fissure. Also on YouTube.