[Relationship between upper dental arch width and other dimensions of the head and face].

The relationship between upper dental arch width and some dimensions of the face and head in children 10-12 years of age (177 children with normal occlusion, 59 with Class II div. 1, 35 with Class II div. 2 and 27 with Class III) was examined in this study. Although different dimensions of the face and head and the upper dental arch width were found to be significantly correlated in children with normal occlusion, this relationship is not found to be strong enough in children with different categories of malocclusion. No significant diagnostic elements were found having general application during treatment planning.