TMJ PERFORMANCE AND BEHAVIOR IN PATIENTS MORE THAN 6 YEARS AFTER LE-FORT-I OSTEOTOMY

Sixteen non cleft patients treated by one piece Le Fort I osteotomy we re investigated for TMJ symptoms. Clinical examination and subjective assessment by the patients was used over a 6-year period. No increase in symptoms was recorded in the osteotomy group as compared to the gen eral population, however, condylar atrophy was seen in two patients. B oth of these patients were classified as high mandibular plane angle, with absolute mandibular retrognathism. This suggests that this group may be at greater risk of condylar atrophy.