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Dental Hygiene

Dark line staining along the gum



Since the beginning of this year, my teeth developed dark line staining along the gum line and between my teeth. I have been to two dentists, who cleaned the stains, but could not tell me why they occurred. Each time the stains reappeared after only less than a month. I have another appointment in a couple of weeks. Do you think it could be from the liquid iron supplement I take (I have been taking it since sometime last year)? I do not drink coffee, wine or smoke.


It absolutely can be from the liquid iron you take! Usually surface stains are from what we ingest.

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Response by:

Michele P Carr, RDH,  MA Michele P Carr, RDH, MA
Associate Professor of Dental Hygiene
Associate Professor of HS Nursing Quality & Research
College of Dentistry
The Ohio State University