The primary goal of orthodontic treatment is to achieve a stable and functional occlusion with enhancement of esthetics. During orthodontic treatment, occlusal changes occur simultaneously with tooth movement, which can result in occlusal imbalance. For long-term stability of occlusion in orthodontics, achieving proper alignment and intercuspation is important by the end of treatment. Treatment for occlusal disharmonies often involves orthodontic interventions, occlusal adjustments, or other dental procedures aimed at restoring proper alignment and function of the bite. Disharmonies can occur in both fixed appliances, such as traditional braces, and aligners. These issues may arise from factors like misaligned brackets or poorly fitting aligners, which can result in discomfort or misalignment during orthodontic treatment. To detect occlusal disharmony, traditional methods like articulating paper have limitations, leading to the emergence of technologies like T-scan. T-scan digital system analysis measures precise quantitative and qualitative evaluation of occlusal forces and contacts. Using T-scan technology, we can measure a range of parameters including occlusion time, disocclusion time, contact points, and percentage force distribution at different time intervals. The purpose of this study is to determine occlusal contact qualities during the course of orthodontic treatment with aligners using T-scan.

Hence the present study is planned to evaluation of occlusal parameters in aligner therapy using computerized occlusal analysis in the pre and post aligner treatment and during retention period