CE Eligible Article THE ENDURING VALUE OF CEPHALOMETRIC ANALYSIS IN ORTHODONTIC TREATMENT PLANNING: Insights Into Growth Patterns for Conventional Comprehensive Fixed-Appliance Therapy By Brad Williams, DDS Editor’s Note: This is Part 1 in a two-part series on cephalometric analysis. Part 2 will explore cephalometric applications in managing overbite in clockwise and counterclockwise growers, transverse arch expansion, repositioning strategies, and distalization feasibility. C ephalometric analysis has been a corner-stone of orthodontic diagnosis, providing quantitative insights into craniofa-cial relationships, skeletal discrep-ancies, and growth directions, for decades. 1 However, a growing trend in orthodontic education, particularly targeted at general practitioners, argues for the dimin-ished relevance of ceph analyses, favoring streamlined protocols that prioritize efficiency over detailed radiographic assessment. The new perspective, however, may oversimplify complex cases, potentially leading to suboptimal outcomes or iatrogenic complications. Anecdotally, state dental boards throughout the United States have contin-ued to expect and demand cephalometric analysis as an essential component to stan-dard of care orthodontic records. The boards have fined, suspended, probated, and revoked licenses from dental professionals for lack of standard of care records (ceph and ceph analyses) as part of investigative findings. 2 So, which is it? Are cephalo-metric analyses unnecessary and archaic or an essential part of diagnosis? This article argues that cephalometric analysis remains indispensable, particularly for evaluating mandibular growth patterns—clockwise (CW: hyperdivergent, high-angle) and counterclockwise (CCW: hypo-divergent, low-angle) rota-tions—which inform critical treatment decisions. 3 Even in non-growing adults (often used as a rationale against using cephalometrics), these patterns persist as foundational skeletal traits that influence mechanics. Focusing exclusively on non-surgical interventions with conventional fixed appliances, we explore how growth pattern assessment guides GP referral thresholds, bite management strategies, distalization feasibil-ity, and arch expansion for Class II correction. By integrat-ing referenced evidence, this review aims to reinforce cephalometrics' value in modern orthodontic practice. 4 Cephalometric Analysis & Mandibular Growth Patterns Cephalometric radiographs enable precise measurement of skeletal and dental relationships, including mandibular plane angle (MPA), gonial angle, and occlusal plane inclination, which delineate growth patterns. 5 CW growth, characterized by a steep MPA (>37°), downward and back-ward mandibular rotation, and increased lower facial height, predisposes to open bites and Class II or III tendencies. Conversely, CCW growth features a shallow MPA (<27°), forward mandibular rotation, and reduced lower facial height, often associated with deep bites and stable vertical dimensions. 6 These patterns are not merely developmental; they persist into adulthood, affecting treatment stability. Studies on molar relation-ships in varying skeletal patterns highlight how growth direction influences dentoalveolar compen-18 Winter 2026 JAOS
Journal of the American Orthodontic Society Winter 2026: Page 18
