True vertical validation in facial orthognathic surgery planning

• Published in: Journal of clinical and experimental dentistry 2013-12, Vol.5 (5), p.e231-8
• Main Authors: Espinar-Escalona, Eduardo, Ruiz-Navarro, Maria B, Barrera-Mora, José M, Llamas-Carreras, José M, Puigdollers-Pérez, Andreu, Ayala-Puente, Jorge
• Format: Article
• Language: English
• ISSN: 1989-5488; 1989-5488
• DOI: 10.4317/jced.51188

To validate the effectiveness of the original standards of True Vertical (TV) Subnasal Line in orthognatic surgery planning. The present study evaluates the changes occurring in patients with skeletal Class II alterations programmed for orthognathic surgery with a view to improving their facial profile. [corrected] We showed a series of black profiles (composed by a first control group of subjects with normal occlusion, and another two additional groups comprised patients before -Group 2- and after orthognatic surgical correction of Class II malocclusion -Group 3-) for three groups of observers (orthodontists, surgeons and laypeople). The facial images became black silhouettes in order to determine a series of parameters (including aesthetic assessment) by means of the observers. Their observation were assessed using a 5-point Likert scale. The sample was composed of 52 profile's subjects who were tested for a total of 72 observers. Aesthetic assessment yielded mean scores of 2.57, 1.67 and 2.46 for groups 1, 2 and 3, respectively. There was a statistically significant difference (p