Jairo Mariel Cárdenas; Roberto Edrey Blanco Carapia; Gabriela Moreno Meraz; Francisco Javier Gutiérrez Cantú; José Carlos López Ramírez; Ricardo Oliva Rodríguez & Abraham Israel Muñoz Ruiz
This study analyzed morphometric variations of the nasal floor and the anterior maxillary region using cone- beam computed tomography (CBCT), evaluating their relationship with skeletal class, facial profile, and sex. The methodology consisted of the analysis of 540 CBCT scans distributed according to skeletal class (I, II, and III), facial profile (straight, convex, and concave), and sex, with 30 subjects in each group combination. In each study, measurements of middle nasal thickness, incisor bone thickness at 3 mm, 6 mm, and 9 mm rom the alveolar crest, anterior bone height, alveolar inclination, distance from the nasal surface to the anterior buccal cortical plate, palatal-nasal height, and nasopalatine canal length were performed. The results showed that incisor bone thickness, alveolar inclination, palatal-nasal height, and nasopalatine canal length were the variables that exhibited the most consistent behavior among groups, whereas middle nasal thickness and anterior bone height showed greater variability. In general, several linear values were higher in men than in women, particularly in some class III subgroups, whereas the most marked differences among skeletal classes and facial profiles tended to be observed in concave profiles and in certain class II and III subgroups. These findings highlight the importance of considering skeletal class, facial profile, and sex in the morphometric evaluation of the nasal floor and the anterior maxillary region, since its analysis by CBCT may provide useful information for more accurate diagnostic and therapeutic planning in the premaxillary region.
KEY WORDS: Nasal floor; Anterior maxilla; Skeletal class; Facial profile; Cone-beam computed tomography.
CÁRDENAS, J. M.; BLANCO, C. R. E.; MORENO, M. G.; GUTIÉRREZ, C. F. J.; LÓPEZ, R. J. C.; OLIVA, R. R. & MUÑOZ, R. A. I. Tomographic evaluation of the nasal floor and the anterior maxillary region in relation to skeletal class, facial profile, and sex. Int. J. Morphol., 44(4):1440-1447, 2026.
