Preventive Potential of Fluoride Sealants in Adolescent Orthodontic Patients

The aim of this trial is to investigate the potential of using an adhesive bonding agent that also acts as a fluoride sealant when placing fixed orthodontic appliances in adolescent patients, as an alternative to regular bonding agents. The main question it aims to answer is: \- Does an adhesive fluoride sealant reduce the prevalence of white spot lesions in orthodontic adolescent patients after an observation period of 3 months? Participants who need orthodontic treatment and who agree to take part in this study will have their orthodontic appliance placed using regular adhesive on one side of their upper jaw and fluoride sealant on the other. White spot lesion prevalence will be assessed using the Enamel Decalcification Index (EDI) at baseline and after 3 months.

Inclusion Criteria * Age between 10 and 17 years * Initiation of fixed orthodontic treatment in the upper jaw * Presence of all teeth 15-25 * Written consent from patients and legal guardians Exclusion Criteria * Pre-existing white spot lesions * Active carious lesions * Structural enamel defects * Systemic diseases affecting oral health * Vestibular restorations in the anterior region * Little Index \> 9