Affiliation:
1. Department of Preventive Dental Sciences, College of Dentistry Majmaah University Al‐Majmaah Saudi Arabia
Abstract
Key Clinical MessageWith conventional mechanics to protract the upper posterior teeth for correcting Class III molar relationships, such as intra‐arch mechanics, face mask reverse‐pull headgear protraction, and interarch Class III elastics, there are some adverse effects, including diminished patient compliance, the possibility of losing anchorage, and extrusion of upper molars and lower incisors with counterclockwise rotation of the occlusal plane. Protraction force should be directed through the center of resistance of the upper posterior teeth to prevent these side effects.