January 10th, 2010 by Mr. Chris
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Gum has a special organizational structure. Gum edge, and is not a close attachment between the tooth surface, but there is an O. 5-2 mm deep, shallow groove, said sulcus. The normal elbow, gums and the tooth surface close to, was not open. Gingival sulcus Yi accumulation of food debris, plaque attached, growth and reproduction [...]
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