Objective: To evaluate the changes of the position of the mandibular condyle in cleft lip and palate patients with secondary bony cross-bite deformity after early orthodontic treatment with extraoral bow and facial mask.
Methods: The TMJ topograph 6 months before and after treatment was investigated in 8 patients. The width of the anterior,superior and posterior space of the TMJ was compared prior to and post treatment.
Results: The results showed that there was no significant difference in the width of the three spaces of the TMJ before and after treatment.
Conclusion: The position of the mandibular condyle had no significant change after maxillary anterior distraction with extraoral bow and facial mask.