Diagnosis of Class III malocclusion in 7- to 8-year-old children--a 3D evaluation.

Objectives: The aim of this study was to characterize facial and jaw morphology of children with Class III malocclusion in early mixed dentition.

Methods: This study was conducted on 7- to 8-year-old Caucasian children, 48 children with Class III malocclusion and 91 children with normal occlusion. Surface images of faces and study casts were obtained using laser scanning.

Three-dimensional evaluation of facial morphology in children aged 5-6 years with a Class III malocclusion.

The aim of this study was to evaluate facial morphology in 25 Class III and 46 non-Class III children aged 5-6 years using three-dimensional (3D) laser imaging; 3D facial images were obtained, two average facial templates were constructed for the non-Class III male and female groups, each individual face was superimposed on the corresponding average template and group comparisons were evaluated (facial height, facial convexity, mandibular position and facial surface morphology). Differences between parameters were evaluated by using an analysis of variance and colour deviation maps. The results showed that Class III children had less mid-face prominence and a concave facial profile when compared to non-Class III children (P = 0.