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sub·gin·gi·val .səb-'jin-jə-vəl adj situated, performed, or occurring beneath the gums and esp. between the gums and the basal part of the crowns of the teeth <\subgingival calculus> <\subgingival curettage>
sub·gin·gi·val·ly -ē adv
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sub·gin·gi·val (səb-jinґjĭ-vəl) beneath the gingiva.Medical dictionary. 2011.