TY - BOOK AU - Raymond,Jean-Louis TI - Systemic diagnostic PY - 2023///. N1 - 2 N2 - Introduction: Orthodontic diagnosis is, in general, essentially morphological, and so is the treatment, since it usually involves modifying the shape of the arches and how they interact. They are then adjusted to fit a standard, with the aim of creating a beautiful smile. The dental arches are primarily used for chewing; in fact, it is even their main function. Materials and method: In this article, the author describes what systemic orthodontics (and therefore diagnosis) really entails, covering areas such as mastication, mandibular kinematics, and the various movements generated. These remarks are then illustrated by a clinical case study. Discussion: The morphological modifications that orthodontic appliances impose on the arches must be adapted to enable efficient physiological mastication, because the very stability of orthognathodontic corrections—including surgical corrections—depends on it. Conclusion: Aligning teeth positioning with masticatory function, achieved through the pursuit of optimal proprioception, should be the primary objective. Orthognathodontic treatment modifies the shape of the arches and their occlusion to adjust the trajectories of masticatory cycles. These adjustments aim to optimize occlusal force distribution and ensure that dental corrections are long-lasting UR - https://shs.cairn.info/journal-l-orthodontie-francaise-2022-1-page-7?lang=en ER -