Cambios cráneo-cervicales en pacientes clase III esqueletal: antes y después de ser tratados con máscara facial de Petit en pacientes de 4 a 10 años de edad

Abstract

The relationship between the craniocervical position and the different malocclusions is of interest to orthodontists when establishing a diagnosis in patients. The objective of this study is to determine the craniocervical changes in skeletal Class III patients, before and after performing maxillary traction with Petit's facial mask. The research will be carried out with lateral cephalic x-rays of patients between 4 and 10 years old, using measures established by Mariano Rocabado, these x-rays will be analyzed with a digital cephalometric program before and after having used extraoral traction for the correction of this malocclusion and skeletal condition. The literature shows numerous investigations of the relationship between the posture of the skull and the spine, showing that in skeletal Class III patients there is a shortening of the suboccipital space, which can generate certain symptoms due to compression of important anatomical structures found in this space. However, no literature is found on these comparative craniocervical changes before and after patients treated with the use of Petit's facial mask. This is why this research will be carried out, waiting for comparative results, that after extraoral treatment, there is an increase in the suboccipital space, which would lead to the release of nerves, vessels and other structures present between the skull and the first cervical vertebra.