| http://www.w3.org/ns/prov#value | - mike1105 Jan 03, 2006 sounds like exposed dentin (sensitive tooth structure below the normal level of the gumline and below the level of the enamel) has been worn down due to abrasion, probably from receding gums/ which may in turn be due to either gum disease or improper brushing technique with perhaps the wrong toothbrush. if this is the case, there are a few different types of treatments availa
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