Which helps remineralize teeth EXCEPT u2014 which is the EXCEPTION?

Xylitol
Fluoride varnish
Fluoride toothpaste
Oral calcium supplements
Saliva pH 7 or greater

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Correct answer: D. Oral calcium supplements

Oral calcium supplements increase serum calcium but do NOT contribute to enamel remineralization. Fluoride (varnish, toothpaste) directly remineralizes enamel by forming fluorapatite. Xylitol stimulates salivary flow and inhibits S. mutans. Alkaline saliva pH favors remineralization.

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Which helps remineralize teeth EXCEPT u2014 which is the EXCEPTION?

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