Parameters with a difference value between 0.5 and 1.0 included U1NA distance, L1NB distance, and nasolabial angle
. The only parameter with a difference value between 1.0 and 1.5 was the L1NB distance.
In addition, nasofrontal and nasolabial angles
were measured pre..and post.operatively.
Then the value of the nasolabial angle
was determined, formed by the join of the columella, subnasale and edge of the upper lip.
Maxillary incisor inclination and upper lip thickness show weak and statistically insignificant correlation with nasolabial angle
In predicting the change in the nasolabial angle
it is helpful to consider it as being composed of two components; hence, the overall alteration will depend on the changes in the columella angle (i.e.
The data of facial analysis did not show a correlation with those analyzing facial aesthetics, except for grooves in the forehead region that presented a relation with the nasolabial angle
(p = 0.03).
These findings show no significant differences between upper lip to E-line in all the groups as well as upper lip to TV-line, lower lip to TV-line, the mentolabial groove, the nasolabial angle
. Comparing together brachycephalic-mesocephalic and mesocephalic-dolichocephalic groups no significant difference was present from the upper lip to S.
Facial analysis observed the convex profile, straight nasolabial angle
, short mentocervical line and occlusion analysis the molar and canines in Class II, equal to or higher than the half of a cusp, and overjet equal to or greater than 5mm.
On extra oral clinical examination patient had a mesocephalic shape of the head with mesoprosopic facial form, profile of the patient was convex with acute nasolabial angle
. Intra oral examination revealed Angle's class I molar relation and a class I canine relation on both the sides with severely proclined upper and lower anteriors.
Past history of this patient revealed swelling at nasolabial angle
1 yr back, which was excised and reconstruction using forehead flap was done and was reported as having pilomatricoma.
This, they concluded that the VNO was `1.8 cm posterior to the nasolabial angle
and 0.77 cm from the nasal floor'.