Ghulam Rasool, Tasneem Alam.
Comparison of lip thickness among different skeletal malocclusion classes.
Pak Oral Dental J Jan ;35(1):61-4.

Facial appearance is fundamental for communication and interaction with the environment. In contemporary society, there is a widespread growing interest for facial esthetics. The creation of a harmonic occlusion, within a well-functioning stomatognathic apparatus, must always consider the effect of tooth position on facial soft tissues. The objective was to evaluate the upper lip thickness in different skeletal classes of malocclusions in patients reporting to Orthodontics, Khyber college of dentistry, Peshawar. A total of 90 patients 30 from each skeletal class of malocclusion were selected for this study. Lip thickness was measured using lateral Cephalograms. The measurements were: a) the distance between point A and subnasale b) the distance between prosthion and labrale superious c) the shortest distance between the upper incisor and the attachment points of the upper and lower lip d) the distance between infradentale and the vermilion border of the lower lip e) the distance between point B and the deepest point of the labiomental crease f) gnathion and soft tissue menton. The collected data were analysed by SPSS version 17.0. Mean, frequency and standard deviation were calculated for numerical variables. One-way ANOVA test used to made comparison between the skeletal classes. The largest range was found among skeletal class I, II & III malocclusion patients were the point A to Subnasale distance and gnathion to soft tissue menton distance. The only two variables showing statistically significant difference were i) Distance between point B and deepest point of labiomental crease ii) Shortest distance between upper incisor and attachment of both lips.

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