 This study compared two different skeletal anchorage methods for treating class 3 patients with maxillary retronathia using finite element analysis. The results indicated that the application of a unilateral 500G protraction force to the face mask resulted in higher von-mises stress and displacement values than when the same force was applied to the infrasigmatic crest and mandibular synthesis. This suggests that the former method may be more effective at reducing the amount of force transmitted to the circum-axillary sutures, thus allowing for better bone growth. This article was authored by Mohamed Hilmi Bayakavas and Burak Kail.