Lip projection analysis in brachycephalic, dolichocephalic and mesocephalic individuals of a Mexican population

The aim of this study was to examine the lip projection of brachycephalic, dolichocephalic and mesocephalic Mexican patients and to analyze the relationship between dental protrusion and the lip position, to identify if a labial soft tissue projection exists and to determine what features predominat...

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Bibliographic Details
Published in:Investigación clínica 2016-09, Vol.57 (3), p.259-266
Main Authors: Sánchez Meraz, Wulfrano, Arredondo Hérnandez, Raymundo, Avalos Sanchez, Diana, Mariel Murga, Humberto, Javier Gutiérrez Cantu, Francisco, Mariel Cárdenas, Jairo
Format: Article
Language:English
Subjects:
MEDICINE, RESEARCH & EXPERIMENTAL
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Summary:The aim of this study was to examine the lip projection of brachycephalic, dolichocephalic and mesocephalic Mexican patients and to analyze the relationship between dental protrusion and the lip position, to identify if a labial soft tissue projection exists and to determine what features predominated in this study. A total of 120 lateral radiographs of the skull were randomly selected from patients aged 16-25 years. The linear and angular data were measured, the values of the upper and lower lip projection relative to Ricketts E-line, Steiner S-line and Arnett TV-line were collected. The angles to be analyzed were the nasolabial, mandibular plane and interincisal, and the mentolabial groove depth. The statistical significance was determined by the Student t-test. A significant difference between mesocephalic and brachycephalic patients was observed measuring the angle between the Frankfurt plane and the mandibular plane (P
ISSN:0535-5133