Establishing lateral cephalometric norms for Nalgonda children with mixed dentition

Abstract

Aim: The aim was to establish lateral cephalometric norms among Nalgonda children with mixed dentition and also to compare these norms with the established value of Caucasian norms. Materials and Methods : A total of 100 children (50 girls and 50 boys), aged between 8 and 12 years was selected based on the following inclusion criteria: Class I molar relationship without any crowding, no skeletal abnormality and no previous orthodontic treatment. A new custom made software was developed into which the subject's data were uploaded for cephalometric analysis of skeletal, dental angular and linear measurements. Results: Nalgonda children demonstrated forwardly placed maxillary and mandibular incisors in relation to NA and NB planes giving an acute interincisal angle of 116.1°. A statistical difference was observed between boys and girls in few variables which include ANB. Lower incisor-NB (linear), angle of convexity, occlusal cant and gonial angle. Conclusion: These children displayed horizontal growth pattern and Class II skeletal tendency with acute interincisal angle which varied from Caucasians. The values provided here would aid in the diagnosis and treatment planning for orthodontic interventions among Nalgonda children.