Publicación:

Evaluación de la morfología craneofacial en el plano vertical y su relación con el componente ancestral en pacientes adultos atendidos en la clínica de ortodoncia de la universidad cooperativa de Colombia sede Envigado

Resumen

Objective: to determine the relationship between craniofacial morphology in the vertical plane and the ancestral component of adult patients seen at the orthodontic clinic of the UCC. Methods: a cross-sectional descriptive study was carried out in a total of 130 patients with an average age of 22±12 years. A mouthwash sample was taken in 10 ml of saline solution and DNA was extracted to analyze genetic polymorphisms. Twenty ancestry informative markers (AIMs) were typed in each DNA sample. From the cephalic radiographs of each patient we obtained the anatomical points and the 6 angular measurements indicated to analyze the craniofacial growth in the vertical plane including the analysis of soft tissues. Results: in relation to the ancestry results it was found that the average for the European ancestral component was 67.26 ± 9.18%, for the Amerindian it was 21.48 ± 6.59% and for the African it was 10.86 ± 7.13%. Among the measures of growth in the vertical plane with the greatest variation were FH/PP - PO/S-N and those with the least variability were Ar-Go-Me, AFP/AFA. The analysis of correlations between the cephalometric measurements in the vertical plane and each of the ancestral components showed a slight positive correlation between Go-Gn/S-N and the European component (Pearson's R = 0.192, Vp = 0.030), for the rest of the measurements there was no correlation with any of the ancestries evaluated, and these were not associated with the skeletal classification of the study population. Conclusion: The results of the present study allow us to conclude that the treatment by the orthodontist can have great effects on the vertical plane, since little association was found between the vertical findings and the ancestral genetic characteristics.