[Study of dento-maxillo-facial growth and development on anterior deep bite with linguoversion of upper incisors...

By means of computer-X-ray cephalometric system to study the dento-maxillo-facial growth and development was performed in 65 patients of anterior deep bite with lingoversion of upper incisors. The patients were divided into two groups: (1) 35 cases aged 12-16 years and (2) 30 cases aged 17-26 years. The same number of the subjects with normal occlusion were used as control group. The findings were as follows: 1. Besides the dento-maxillo-facial growth and development was abnormal vertically, the posterior anterior discrepancy of the growth trend is also one of the main problems in this kind of malocclusion. 2. The growth of the alveolar bone was inhibited anteriorly by the upper incisors; 3. The deformed mandible has the growth trend to rotate forward and upward in Counterclock wise direction so that it is wise to treat of early.