prolabial

pro·la·bi·al

(prō-lā'bē-ăl),
Denoting the isolated central soft-tissue segment of the upper lip in the embryonic state and in an unrepaired bilateral cleft lip and palate.

pro·la·bi·al

(prō-lā'bē-ăl)
Denoting isolated central soft-tissue segment of upper lip in embryonic state and in an unrepaired bilateral cleft lip and palate.
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References in periodicals archive ?
Fordyce granules on the prolabial and oral mucous membranes of a selected population.
A vermillion turn-down flap from the lateral lip element was used to form the prolabial vermillion.
Animal studies suggest that following the failure of lip closure there is an overgrowth of the prolabial tissues which then divert the tongue into the nasal cavity.