labial sulcus

(redirected from lip sulcus)

la·bi·al sul·cus

a furrow between the developing lip and gum.
Farlex Partner Medical Dictionary © Farlex 2012

la·bi·al sul·cus

(lābē-ăl sŭlkŭs)
Furrow between developing lip and gingiva.
Synonym(s): lip sulcus.
Medical Dictionary for the Dental Professions © Farlex 2012
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References in periodicals archive ?
Singh and Clark (2003) 21, using finite-element scaling analysis, found a reduction in the prominence of lower lip sulcus. Results of our study support the findings of the above-mentioned studies that have used different methods to evaluate the effects of Twin Block appliance.
The upper anterior teeth forward 1.25 mm can make the upper lip corresponding forward 1 mm, the thickness of upper lip decreased and the depth of upper lip sulcus was less, but the lower lip area change is not significant, which may be related to the lower lip position affected by a variety of factors.
* Upper lip sulcus depth (USD): The measurement between the upper lip sulcus and a perpendicular line drawn from the vermillion to the Frankfort plane;
* Inferior sulcus to the H line (lower lip sulcus depth) (ISH): The measurement at the point of greatest convexity between the vermillion border of the lower lip and the H line;
The H angle, Soft tissue facial angle, Nose prominence, Upper lip sulcus depth (upper lip curl), Basic upper lip thickness, Upper lip thickness, Upper lip strain, Skeletal profile convexity, Soft tissue subnasale to H line, Lower lip to H line, Inferior sulcus to the H line (lower lip sulcus depth), and Soft tissue chin thickness measurements were analyzed using the definitions provided by Holdaway10 (Fig 1).
Upper lip sulcus depth (mm)###150###1.00###6.00###3.2600###1.10306###3 (1-4)
Upper lip sulcus depth (mm)###male###78###3.3333###1.14354###.22008
Upper lip sulcus depth###.505###148###.617###.15987###.31563###-.47454###.79979