The characteristic features of the Pierre Robin sequence are micrognathia, cleft palate and glossoptosis with upper airway
obstruction in newborns. The aim of this study was to analyse the craniofacial morphology and specially the mandibular growth
and its changes due to development in patients with PRS, isolated cleft palate and compared with a control healthy group. The
method of investigation was lateral cephalometry of 145 patients from the Craniofacial Department, Sant Joan de Déu Hospital
in Barcelona, ranging from 1-18 years old. Kruskal Wallis “U” was used for the statistical analysis for comparisons among the
groups of study. The results suggest that SPR group differ from the others for a shorter mandible that is present in infants and
remains in adulthood.
(Rev Esp Ortod. 2007;37(4):249-258)