Conclusions
TMJ

Seven months of treatment with Herbst IV appliance corrected dental Class II in both groups to Class I molar relationships. However, the mandibular skeletal effect was more evident in the younger age group with more stable results and less tendency for relapse, emphasizing the importance of early detection and treatment of skeletal Class II.The non-significance difference in condylar position within the TMJ fossa in both groups suggests that TMJ remodeling has occurred in both groups.