The morphological peculiarities of the maxillo-facial region in children with cleft lips and palate

Abstract

Considerable variation in malocclusion was found in children with cleft lip and palate. Class III malocclusionwere found more frequently due to congenital factors, such as maxillo-mandibular growth potential as well as the severity of the defect.Material and methods. In this study, 15 cephalometric x-rays were analyzed according to the methods proposed by McNamara, Tweed, Roth-Jarabak and Steiner, and 30 cephalometric parameters were calculated for each patient with complete unilateral cleft (so many on the left and so many on the right). The data obtained from the measurements are presented in the tables corresponding to each method. Results. Maxillary and mandibular length (Cond-A, Cond-Gn) statistically significantly reduced compared to normal mean values. The threshold of significance registered for these indices demonstrates significant deviations of the previous height of the face was statistically significantly reduced by the value p<0.01 compared to the normal values (Sna-Me). The posterior vertical skeletal deficit is confirmed by the reduced value of the Hp parameter (posterior height, p<0.01), which compared to Ha, reveals a type of posterior facial rotation. The enlarged lower anterior face is demonstrated by the increased value of the anterior height index, (Sna-Me) which registered an average deviation of 6.57 mm and an increased Ha/Hp ratio (p<0.01). Conclusions. In the result of the analysis of the cephalometric analysis of the x-rays according to the McNamara, Roth-Jarabak, TweedMerriefield and Steiner methods, it was found that the cranio-facial morphology in children with unilateral cleft lips and palate was different from normal values due to the lack of growth of the facial part of the cranium both in sagittal and vertical planes.