maintaining oral hygiene and patient comfort. 8Recent advances in orthodontic wire alloys and appliance design have improved force delivery characteristics, allowing light continuous forces that are biologically compatible with periodontal remodeling.Incorporating spring elements and resilient alloys into removable appliances may enhance their efficiency in delivering physiologic forces while minimizing patient discomfort.While Hawley retainers are widely studied for retention, evidence on their role in relapse correction IntroductIonOne of the main goals of orthodontic treatment is still achieving long-term stability.After active treatment, relapse is still reported in a considerable percentage of patients, despite improvements in biomechanics and retention protocols. 1Periodontal fiber reorganization, residual craniofacial growth, occlusal factors, and patient compliance with retention are some of the factors that contribute to orthodontic relapse, which is a complex phenomenon. 2,3ccording to systematic reviews, there is no one retainer type that is universally better, which emphasizes the significance of customized retention tactics. 4,5Because of their adaptability and capacity to include active ingredients, Hawley retainers are still in use today.Hawley appliances are helpful in treating minor relapses because they permit limited tooth movement, in contrast to vacuum-formed retainers.Relapse frequently manifests as increased overjet, especially in patients who have received prior treatment for class II malocclusion.Traditional labial bows offer little control over the direction and strength of the force.The goal of modifications like the new G retractor is to increase treatment effectiveness and force delivery.Orthodontic relapse is multifactorial and may occur due to imbalance between the surrounding soft tissue pressures and the corrected tooth position.Elastic recoil of gingival and periodontal fibers, particularly the supracrestal fibers, can exert forces that tend to return teeth to their pretreatment positions.Furthermore, continued craniofacial growth and neuromuscular adaptation may influence posttreatment stability.Studies have shown that mandibular incisor position and overjet correction are particularly vulnerable to relapse due to lip pressure, tongue posture, and occlusal interferences. 6,7emovable appliances provide a conservative approach for relapse correction because they allow controlled activation while 1,
Nath et al. (Thu,) studied this question.