EVALUATION OF THE RELATIONSHIP OF CURVE OF SPEE WITH DENTOSKELETAL MORPHOLOGY IN SAGITTAL MALOCCLUSIONS

Curve of Spee is defined as the line on a cylinder which is tangent to incisal edges of lower anteriors, occlusal surface of lower second molar and anterior border of condyle. The aim of the study is to determine whether there is a relationship between curve of Spee and craniofacial morphology in different sagittal malocclusions and to determine the influence of craniofacial morphological features in different sagittal malocclusions on curve of Spee. The research consists in the analysis of lateral cephalograms and study models of 90 patients, age 15-25 years which includes skeletal class I, class II and skeletal class III. Patients are divided into three groups: group A-flat curve of Spee i.e. < 2mm, group B - normal curve of Spee i.e. 2-3 mm, and group C - deep curve of Spee i.e. >3mm. In the literature, there is little data on research that has been done on this topic, on the other hand, in our daily work as orthodontists, we encounter the problem of leveling the deep bite.