RELATIONSHIP BETWEEN LOWER ANTERIOR CROWDING WITH FACIAL HEIGHT AND DEPTH IN BENGALEE POPULATION - À CEPHALOMETRIC STUDY

Abstract

INTRODUCTION- A study of head and face presents a multidimensional problem which includes height, depth and width dimension and esthetics. The head and face is not spherical with qual radius in all directions. It is rather an irregular polygon and could not be measured by simple geometrical and mensurational methods. Malocclusion and dentofacial deformity arise through variations in normal developmental process and so must be evaluated against a perspective of normal development of the craniofacial morphology like facial height and depth. AIMS AND OBJECTIVES- The basic aim of this study was to nd the co-relation between lower anterior crowding with facial height and depth in Bengalee population by the lateral cephalometrics. MATERIALS AND METHODS- The present study was conducted on thirty young Bengalee subjects comprising of males and females of fourteen to twenty years of age. Fifteen subjects were selected with noncrowded normal class - 1 cases and fteen with crowded mandibular incisors. The purpose of this study was to evaluate the relationship between facial height, facial depth and lower anterior crowding among the two above mentioned groups. RESULT AND CONCLUSION- Both linear dimensions and angular values were compared between the two sample groups. The measurements were taken from lateral cephalograms. The parameters used were Anterior facial height, Posterior facial height, mandibular length, Facial depth (SN length), 'e' and 'f' values (linear dimensions). The angular values compared were SN-MP angle, SN-Occlusal plane angle and SNEndognathion angle. For each measurement the mean, standard deviation and standard error were established. Correlation were made by comparing the different parameters between the crowded and non-crowded sample group.