Bracketless Orthodontic Treatment (3D-BOT) Versus Conventional Fixed Braces for Mild-to-Moderate Lower Front Tooth Crowding in Adults

This study will compare two fixed orthodontic treatments for mild-to-moderate crowding of the lower front teeth in adults. Participants will be randomly assigned to three-dimensional bracketless orthodontic treatment (3D-BOT), which uses wires bonded directly to the teeth, or conventional braces attached to the front surfaces of the teeth. The main aim is to compare how tooth alignment changes during the first 24 weeks after appliance placement. Additional assessments will examine changes in tooth position and lower dental arch dimensions, oral and gum health, soft-tissue effects, quality of life and psychosocial well-being, patient experience and satisfaction, pain and painkiller use, appliance failures, time spent on clinical procedures and digital preparation, and changes in teeth and supporting bone. Data will be collected through clinical examinations, digital scans, questionnaires, home diaries and radiographic imaging.