Celery cleans teeth after eating.

Tooth decay has long been shown to be the result of acid demineralisation of tooth resulting from plaque bacteria and carbohydrate.

You can see plaque on teeth with food dye used to colour icing on cakes.

Chewing celey string after eating helps saliva remove plaque from gum margins and trapped food from between teeth and inside grooves on chewing surfaces where the brush cannot reach. It helps saliva neutralise acid and repair demineralised tooth.

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