Department of Restorative Dentistry, Faculty of Dentistry, Istanbul Kent University, Istanbul, Turkey.
Department of Orthodontics, Faculty of Dentistry, Istanbul Kent University, Istanbul, Turkey.
Am J Orthod Dentofacial Orthop. 2023 Oct;164(4):e121-e128. doi: 10.1016/j.ajodo.2023.07.008. Epub 2023 Aug 12.
Coloring solutions-such as coffee and cola, frequently consumed daily-cause coloration of attachments made with resin composites. This may reduce the motivation for clear aligner treatment, often preferred by patients with esthetic concerns. This study aimed to compare color changes of orthodontic attachments made with 3 different composite resins.
A total of 90 premolar teeth (n = 10) extracted for orthodontic reasons were used. All teeth were embedded in plaster models to imitate the arch shape and scanned with an intraoral scanner. Horizontal rectangular attachments were placed on each tooth by printing the attachment template obtained using digital models. Three composite resins: Omnichroma, GC Aligner Connect, and Tetric PowerFlow were used to prepare the attachments. The models prepared in arc-shaped in each composite group were divided into subgroups and kept in 3 different solutions (coffee, cola, and distilled water) in the incubator at 37 ± 1°C. The models were photographed at baseline and 28 days later with the Smile-Lite MDP device. L, a, and b values were obtained with Digital Color Meter (version 5.22; Apple, Cupertino, Calif). CIEDE2000 formula (ΔE00) was used to evaluate color changes. In addition, models were scanned for color determination at baseline and 28 days later with the 3Shape intraoral scanner.
There were significant color differences between solutions (P <0.05).
Attachments can be colored easily. Patients should be warned against coloring solutions at the beginning of the treatment, and their eating and drinking habits should be regulated.
着色剂，如咖啡和可乐，人们每天都会经常饮用，会导致树脂基托发生着色。这可能会降低患者对透明矫正器治疗的积极性，因为美观问题通常是患者选择透明矫正器的首要原因。本研究旨在比较三种不同复合树脂制成的正畸附件的颜色变化。
共使用 90 颗因正畸需要而拔除的前磨牙（n=10）。所有牙齿均嵌入石膏模型中以模拟牙弓形状，并使用口腔内扫描仪进行扫描。通过打印使用数字模型获得的附件模板，在每颗牙齿上放置水平矩形附件。使用三种复合树脂：Omnichroma、GC Aligner Connect 和 Tetric PowerFlow 来制备附件。在每个复合组中制备弧形模型，并将其分成亚组，然后将其分别放置在 37°C±1°C 的培养箱中的三种溶液（咖啡、可乐和蒸馏水）中。在基线和 28 天后使用 Smile-Lite MDP 设备对模型拍照。使用 Digital Color Meter（版本 5.22；Apple，Cupertino， Calif）获得 L、a 和 b 值。使用 CIEDE2000 公式（ΔE00）评估颜色变化。此外，在基线和 28 天后使用 3Shape 口腔内扫描仪对模型进行扫描以确定颜色。
溶液之间存在显著的颜色差异（P<0.05）。
附件容易着色。在治疗开始时，应警告患者避免使用着色剂，同时应规范其饮食和饮水习惯。
