Tooth decay is the most common global disease where carbohydrate in trapped food is changed to acid demineralisation.
Over 80% of cavities occur inside grooves on chewing surfaces where brushing cannot reach.
Dentist that block food from being trapped by placing fissure sealants over chewing surfaces.
The tooth was disolved leving the sealant in the photo, which shows where food is trapprd under chewing pressure and where toothpase or saliva can be forced to neutralise acid and remineralise demineralised tooth.
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