To Determine the Anteroposterior Position of Incisors in Relation to Points A and B on Cephalogram and Study Models in North Indian Population

Abstract

Abstract Introduction This study aimed to determine the upper and lower incisors to points A and B on lateral cephalogram and study model in North Indian population. This article evaluated the present relationship of upper and lower incisors position to point A and B on the cephalogram and studied the model as a diagnostic tool for orthodontic treatment planning. Materials and Methods The study included 32 patients, aged 15 to 25 years. The sample was divided into two groups as group I (n = 32, cephalometric analysis) and group II (n = 32, study model analysis) of the same patient. In group I incisors position was related to points A and B on the cephalograms and in group II incisors position was related to points A and B on study model by using transparent grid. Results As per Indian norms, outcome mean value for cephalometric norms was 6.3 and 3.2 mm and for study model norms was 4 and 1.3 mm. Statistically significant differences (p < 0.002) were observed for mandibular incisor position on cephalograms and for maxillary incisors (p < 0.001) on study casts when compared with Chile sample norm. Conclusion The anteroposterior position of upper and lower incisors in relation to points A and B on cephalogram and casts has been determined in North Indian patients.