intralabial gap (in´tr
lā´bēl),
lā´bēl),n the position of the upper and lower lips as measured from the midpoint of the lips when a patient is relaxed and smiling. When smiling, the gingival tissues should not be visible and only the cervical two thirds of the maxillary incisors are exposed. The acceptable upper limit of interlabial gap is 3 mm.
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