Labial frenulum
The fold of mucous membrane attaching the upper (or lower) lip to the anterior gum margin. Tearing of the upper labial frenulum in a pre-mobile infant is a sentinel injury for inflicted trauma.
The fold of mucous membrane attaching the upper (or lower) lip to the anterior gum margin. Tearing of the upper labial frenulum in a pre-mobile infant is a sentinel injury for inflicted trauma.
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