Comparison of One-Step and Two-Step Light Curing of Bonding Agents and Composite in Orthodontics

Effectiveness of One-Step Versus Two-Step Light Curing of Bonding Agent and Composite in Orthodontic Bracket Bonding: Study Design: A Randomized Controlled Trial (RCT) Study Type: Interventional Allocation: Randomized Intervention Model: Parallel Assignment Intervention Model Description: Participants undergoing orthodontic treatment will be randomly assigned to two groups. One group will receive one-step (1-step) light curing of the bonding agent and composite simultaneously, and the other group will receive two-step (2-step) curing, in which the bonding agent is cured first, followed by curing of the composite. Masking: Single (Outcomes Assessor) Masking Description: The evaluator assessing outcomes, including bond failure or adhesive remnant index (ARI), will be blinded to the intervention group to minimise assessment bias. Primary Purpose: Treatment Arms and Interventions: Experimental Group Two-Step Light Curing Description: During orthodontic bracket bonding, the bonding agent and composite will be cured simultaneously using a light-curing unit according to the manufacturer's recommended curing time. Intervention Type: Procedure Intervention Name: One-Step Light Curing Technique Active Comparator Group: Two-Step Light Curing Description: During orthodontic bracket bonding, the bonding agent will be cured first, followed by curing of the composite separately using a light-curing unit according to the manufacturer's instructions. Outcome Measures Primary Outcome Measure: Bond Failure Rate of Orthodontic Brackets Description: The number of bracket failures observed during the study period will be recorded to assess the effectiveness of the curing technique. Time Frame: During the follow-up period of 6 months after bonding Secondary Outcome Measures: Adhesive Remnant Index (ARI) Score Description: ARI scores will be evaluated after bracket debonding to determine the amount of adhesive remaining on the tooth surface and to assess bonding characteristics. Tim