Evaluation of Fluorescent Properties and Color Stability of 2 Different Composite Materials Used For Clear Aligner Attachments

In this study, attachments will be divided into two groups in a split-mouth design. To ensure randomization, dental arch will be divided into four quadrants, and the composite to be applied to the upper-right quadrant will be determined by a coin toss. The alternative composite will then be applied to the opposing quadrant. Two routinely available flowable composite materials in our department, manufactured specifically for clear aligner attachments, will be used (AlignerFlow LC, VOCO GmbH, Cuxhaven, Germany; AlignerConnect, GC, Tokyo, Japan). Following the application of the materials in accordance with the manufacturers' instructions, excess material will be removed under ultraviolet light using a carbide bur. Patients will be instructed to change their clear aligners every 10 days and wear them for at least 20 hours per day. Patients will be asked to remove the aligners only during meals, brush their teeth after eating, and reinsert them immediately. Oral hygiene instruction will be provided to all patients.After bonding, extraoral photographs will be captured under UV light and saved in JPEG format. These photographs will be transferred into the "Adobe Photoshop CC 2020" software. Brightness differences between the tooth surface and the attachment surface will be measured using the "Color Picker" tool within the software. Immediately after attachment placement and at two-month intervals throughout six months, digital scans will be obtained using an intraoral scanner (Trios 3, 3Shape Trios A/S, Copenhagen, Denmark). Using the shade-selection feature of the software, attachment shades will be recorded.