ENHANCING DIAGNOSTIC AND TREATMENT STRATEGIES FOR CLASS III MALOCCLUSION

Аннотация

Class III malocclusion is among the most challenging dentofacial problems due to its multifactorial etiology, phenotypic heterogeneity, and variable growth trajectories. Defined by a negative sagittal jaw relationship and anterior crossbite tendency, it encompasses combinations of maxillary deficiency, mandibular excess, or both, compounded by dentoalveolar compensations. Beyond esthetic concerns, Class III discrepancies can compromise mastication, speech, periodontal health, temporomandibular joint function, and airway, with psychosocial impacts that often begin early in life. Keywords: Class III malocclusion, diagnosis, treatment, orthodontics, prognathism, dentofacial anomalies, occlusion, orthognathic surgery, cephalometry, biomechanics, computer modeling, three-dimensional diagnosis, relapse, stability of results, interdisciplinary approach Introduction: Class III malocclusion represents one of the most complex and clinically significant forms of dentofacial anomalies, characterized by disrupted occlusal relationships in which the lower jaw occupies a more anterior position relative to the upper jaw. This pathology is among the most common orthodontic problems encountered in various age groups and requires a comprehensive interdisciplinary approach to diagnosis and treatment. In modern dentistry. Prevalence varies widely across populations, being higher in East Asian groups and lower in European cohorts, underscoring the need for culturally and biologically attuned diagnostic and therapeutic strategies. Contemporary diagnosis must move beyond traditional 2D cephalometrics alone. While measures such as ANB and Wits appraisal remain foundational, they can be misleading in severe skeletal Class III patterns. Enhanced assessment integrates 3D cone-beam CT when indicated, digital dental models with virtual occlusion, facial soft-tissue analysis, and alternative sagittal indicators (e.g., Beta and Yen angles). Functional evaluation of airway, tongue posture, and muscular balance, together with growth assessment via cervical vertebral maturation and serial superimpositions, improves prediction of 85 ACADEMIC RESEARCH IN MODERN SCIENCE International scientific-online conference treatment response and stability. Increasingly, digital workflows, artificial intelligence–assisted cephalometry, and predictive modeling offer opportunities to standardize measurements and forecast growth, though clinical validation and ethical deployment remain essential. Treatment planning hinges on timing, severity, and patient-specific risk. In the mixed dentition, interceptive orthopedic approaches—such as rapid maxillary expansion with facemask protraction, Alt-RAMEC protocols, and bone- anchored maxillary protraction using miniplates—seek to harness growth and produce more orthopedic than dentoalveolar change. In adolescents nearing growth completion, hybrid strategies leveraging temporary anchorage devices can expand options for dental camouflage while reducing reliance on compliance-heavy mechanics. For skeletally mature patients with pronounced discrepancies, orthognathic surgery (Le Fort I advancement, bilateral sagittal split osteotomy, or bimaxillary procedures) remains the gold standard, increasingly guided by virtual surgical planning and 3D-printed splints. Across all ages, aligner-based therapies are evolving as adjuncts or alternatives in select camouflage cases, but evidence-based protocols and torque control strategies are critical. Long-term stability and relapse risk, influenced by growth, soft- tissue balance, and occlusal finishing, require proactive retention planning and longitudinal monitoring. Despite decades of research, key gaps persist: variability in phenotypes leads to inconsistent protocols; predictors of response to early protraction or skeletal anchorage are not uniformly applied; objective, patient-centered outcomes are underutilized; and digital innovations are unevenly integrated into routine care. A pragmatic, phenotype-driven framework that unites robust diagnostics with age- and severity-specific treatment pathways is needed to improve predictability, efficiency, and stability. Class III malocclusion occupies a special place among dentofacial anomalies due to its multifactorial etiology, complexity of clinical manifestations, and significant impact on the functional state of the dentofacial system. According to epidemiological studies, the prevalence of Class III malocclusion in various populations ranges from 3% to 15%, with an observed tendency toward increased frequency of this pathology in recent decades. The development of modern technologies opens new possibilities for improving diagnosis and treatment of Class III malocclusion. Implementation of three-dimensional visualization methods, computer modeling, digital treatment 86 ACADEMIC RESEARCH IN MODERN SCIENCE International scientific-online conference planning technologies, and biomechanical analysis allows for increased diagnostic accu