Volume 23, Issue 2 TABLE OF CONTENTS 8 20 12 FEATURES 6 Remembering Dr. Richard T. Beistle: Sassouni Plus Analysis Innovator, Instructor and Friend Part 3–The Digital Orthodentist: In-Office Milling Case Report: Class II Correction: Factors For Utilizing Twin Force Appliance In A Complex Orthodontic Case Case Study: Pediatric Patients: Early Treatment & Correction of Crossbites Tooth Size Analysis: Examining the Orthodontic Canon Case Study: Part 3 of 3–Clinical Management of the FJO-TMD-Migraine Continuum This peer-reviewed journal is published as the official publication of the American Orthodontic Society and the Academy of Gp Orthodontics. 26 DEPARTMENTS 38 AGpO Membership News 40 AOS Membership News On the cover: Dr. Purvi V. Shah is a pediatric dentist committed to providing the best oral health care possible to children. Her practice, Pediatric Denticare, is located in Castle Rock, CO and she has been practicing for over 16 years. Dr. Shah’s commitment to providing comprehensive oral care to children is evident from her tenacious pursuit of continuous education. Dr. Shah is an AOS Diplomate, Fellow in Orofacial Myology, Fellow of AAPS, as well as being certified by the ABPD, FAAPD and Academy of Laser Dentistry, among other academic achievements. 8 12 20 26 30 Follow us on these social channels: www.orthodontics.com Spring 2022 3