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This randomized, split-mouth clinical trial will evaluate a new orthodontic adhesive that eliminates the need for acid etching before bracket bonding. Conventional orthodontic bonding requires etching enamel with phosphoric acid, which can weaken the outer enamel layer and increase the risk of white spot lesions and enamel damage. The etch-free adhesive under investigation is designed to simplify the bonding procedure while preserving enamel integrity. Twenty orthodontic patients starting treatment with braces will participate. For each patient, one side of the mouth (left or right) will be randomly assigned to receive the etch-free adhesive, while the opposite side will receive the conventional adhesive with acid etching. This intra-patient design allows a direct comparison under identical oral conditions. Participants will be followed for 12 months. Bracket failures, bonding time, ease of adhesive removal, enamel surface condition after debonding, and the presence of white spot lesions will be recorded. If effective, the etch-free adhesive may reduce enamel damage without compromising bond strength, providing a safer and more efficient bonding option for orthodontic patients.
The goal of this clinical trial is to determine whether an intraoral Transcutaneous Electrical Nerve Stimulation (TENS) device can reduce pain during orthodontic alignment and leveling in adolescents and adults. The study aims to compare the effectiveness of the TENS device in reducing pain on one side of the mouth, where the device is used, to the other side, where a non-functioning (placebo) device is applied. The primary questions this study aims to answer are: Does the TENS device effectively reduce pain during orthodontic treatment compared to the placebo? How do patients pain levels differ between the treated and untreated sides of the mouth? Participants will: Have an orthodontic appliance placed on their teeth. Experience the TENS device being applied to one side of their mouth for 2.5 minutes immediately after the appliance placement (brackets and wires). Report their pain levels at various intervals after the procedure (immediately, 2 hours, 6 hours, 12 hours, 24 hours, 48 hours, and 72 hours). This study includes up to 150 participants who are undergoing routine orthodontic treatment. The findings will help researchers understand whether the TENS device can effectively reduce discomfort during orthodontic procedures, potentially leading to better patient care and comfort.