A lateral cephalogram was taken before and immediately after the 10 session physiotherapeutic intervention for each child with the Natural Head Posture technique, described previously by different authors (Solow and Tallgren 1976). The technique is reproducible (Siersbaek-Nielsen and Solow 1982) and allows the clinician to evaluate the natural position of the cervical vertebras and the inclination of the cervical column and head posture.