Add Yahoo as a preferred source to see more of our stories on Google. Deniz Celiker/Getty Images The link between good oral health and general health isn't a far-fetched notion. There's many pieces ...

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Medically reviewed by Edmund Khoo, DDSMedically reviewed by Edmund Khoo, DDS Calculus, or tartar, is a hardened substance that forms on teeth. A calculus bridge occurs when this calculus stretches ...