Resumen

ESCUDERO CANTO, RP; YUDOVICH BURAK, M; AGUILAR SAAVEDRA, M  y  ORTIZ MONASTERIO, F. Study of craniofacial growth in Pierre Robin Sequence (PRS) patients not subjected to osteogenic distraction (OD). Rev. Odont. Mex [online]. 2012, vol.16, n.2, pp.88-97. ISSN 1870-199X.

A craniofacial growth study was conducted in Pierre Robin Sequence patients (not subjected to osteogenic distraction) (OD), with the aim of assessing the behavior of partial compensatory growth of the upper and lower jaw structures, and thus determine whether this growth can be considered within the parameters of established cephalometric standards. The study was descriptive, open, observational and retrospective. The study was conducted on 10 PRS patients not subjected to OD. The main researcher performed 220 cephalometric tracings in lateral x-rays of the skull, previously Kappa test calibrated, Harvold, Ricketts, Riedel and Jarabak cephaolmetric analysis measurements were included in the study. A p < 0.05 significance level Mann Whitney U test was used. Growth behavior in patients without OD presented tendency towards verticality. In patients 4, 5, 6 and 12 years old, growth was vertical. At 7 years of age, a patient showed tendency to normality and at 8 years of age growth was horizontal. Growth behavior of the upper jaw showed tendency to verticality, and was apparent in 80% of cases as supra-occlusion and retrusion. Angle C II was the predominating skeletal pattern. The values for facial depth were altered (Po-Or/N-Pg) and found to be under the norm in all 10 studied cases. PRS patients not subjected to OD were found to be under the ranges established by cephalometric norms.

Palabras llave : Pierre Robin sequence; craniofacial growth; cephalometric tracings; cephalometric measurements; osteogenic distraction.