Orthodontic tooth movement (OTM) involves the application of controlled mechanical forces to teeth, inducing alveolar bone remodeling through coordinated resorption and apposition. This process intersects with periodontal bone healing, particularly in contexts where periodontal tissues are compromised or recovering from injury. The present conceptual manuscript proposes a novel integrative theoretical framework that elucidates how OTM modifies periodontal bone healing via biomechanical, molecular, cellular, and systemic pathways. Key constructs include orthodontic force magnitude and direction, alveolar bone remodeling dynamics, inflammatory mediators such as cytokines and the RANKL/OPG axis, periodontal phenotype variations, and systemic modifiers like diabetes and smoking, alongside patient adherence behaviors. By integrating periodontal pathophysiology, bone remodeling biology, and orthodontic force-response theory, we develop formal propositions hypothesizing that optimal OTM can enhance healing under specific boundary conditions, while excessive forces may exacerbate tissue damage in vulnerable phenotypes. This framework highlights mechanistic interactions, such as force-induced cytokine modulation altering osteoclast-osteoblast balance, and boundary conditions including glycemic control and smoking cessation. The manuscript aims to guide future empirical research and clinical practice in orthodontics and periodontology, emphasizing personalized approaches to mitigate risks and optimize outcomes in periodontal bone healing during OTM.
