Table 1.
Classification of the skeletal deformity by Pruzansky modified by Kaban [21]
| Type | Anatomy of the mandible and temporomandibular joint |
|---|---|
| I | Small mandible |
| IIA | Short mandibular ramus of abnormal shape; glenoid fossa in satisfactory position |
| IIB | TMJ abnormally placed inferiorly, medially and anteriorly |
| III | Absent TMJ |