Abstract
This study was undertaken to design the relationship between different ortho-dontic cases and amount of bone level loss. The study sample consisted of 72 male students (20–23 years old) classified into 3 groups: Control group with normal overjet and overbite, overjet group with at least 8 mm, and overbite group with at least 6 mm. The results showed a sign-ificant reduction of bone height in upper and lower incisors in malocclusion group at significant level 0.01 if it is compared with normal group bone level.
