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Trapped food is left between teeth and inside grooves after every meal or snack even after brushing.

See Barium sulphate in the X-rays below showing where food is trapped.

Almost all cavities occur where food is trapped between teeth and inside pits and fissures in grooves on chewing surfaces where the brush and saliva cannot reach after every meal or snack.

Chew fibre like Celery after eating to help saliva remove food, neutralise acid and repair all demineralised tooth surfaces particularly inside grooves you see below.

Regards yndk@ndk.biz