Angle Orthod. 2019 May;89(3):438-445. doi: 10.2319/072018-526.1. Epub 2019 Jan 17.
To assess the effectiveness and efficiency of ultraviolet (UV) illumination compared to conventional white light in the detection of fluorescent-tagged adhesive remnants during orthodontic debonding.
Orthodontic brackets were bonded to extracted human premolars using one of two bonding resins having fluorescent properties (Pad Lock, Reliance Orthodontics, Itasca, Ill; Opal Bond MV, Opal Orthodontics, South Jordan, Utah; n = 40 each). The brackets were then debonded and, in each adhesive group, half the teeth had the remaining adhesive resin removed under illumination using the operatory light and the other half using a UV (395 nm) light emitting diode (LED) flashlight (n = 20/group). Time for teeth cleanup was recorded. Follow-up images were obtained under a dissecting microscope using UV illumination, and the surface area of adhesive remnants was calculated. Effectiveness of adhesive removal was also assessed using scanning electron microscopy imaging. Analysis of variance and Kruskal-Wallis tests were used to analyze time and adhesive remnants, respectively.
Assessment using the dissecting microscope found groups using UV light during adhesive removal had statistically significantly lower amounts of adhesive remnants than groups using white light ( ≤ .01). Time for adhesive removal was significantly lower with Opal Bond MV adhesive using UV light when compared with the white light ( ≤ .01). Assessment by scanning electron microscopy showed that thin remnants of adhesive (<2 μm) remained undetected by UV illumination.
UV light is more effective and tends to be more efficient than white light in the detection of fluorescent adhesive during orthodontic debonding. Although there are limitations, the use of UV LED lighting is a practical tool that aids in adhesive detection.
评估与传统白光相比，紫外线（UV）照明在正畸去粘接过程中检测荧光标记的黏合剂残留的效果和效率。
使用两种具有荧光特性的粘接树脂（Pad Lock，Reliance Orthodontics，Illinois；Opal Bond MV，Opal Orthodontics，South Jordan，Utah）将正畸托槽粘接于离体人前磨牙上（n = 40 个牙）。然后去除托槽，在每个黏合剂组中，一半的牙齿使用手术灯照射下的剩余黏合剂去除，另一半使用紫外线（395nm）发光二极管（LED）手电筒照射（n = 20/组）。记录牙齿清洁时间。使用解剖显微镜在紫外线照射下获取后续图像，并计算黏合剂残留物的表面积。使用扫描电子显微镜成像评估黏合剂去除的效果。使用方差分析和 Kruskal-Wallis 检验分别分析时间和黏合剂残留物。
使用解剖显微镜评估发现，在去除黏合剂过程中使用紫外线的组的黏合剂残留物明显少于使用白光的组（≤.01）。与使用白光相比，使用 Opal Bond MV 黏合剂并配合紫外线照射时，去除黏合剂的时间明显缩短（≤.01）。扫描电子显微镜评估显示，<2μm 的黏合剂薄残余物仍无法被紫外线照射检测到。
在正畸去粘接过程中，与白光相比，紫外线照明在检测荧光黏合剂方面更有效，且效率更高。尽管存在一些限制，但紫外线 LED 照明的使用是一种实用的工具，可以帮助检测黏合剂。
