Kula Betül, Yılmaz Berza, Karaaslan Elif
Department of Orthodontics, İstanbul Galata University, Faculty of Dentistry, İstanbul, Turkey.
Department of Orthodontics, Bezmialem Vakıf University, Faculty of Dentistry, İstanbul, Turkey.
Turk J Orthod. 2022 Dec;35(4):260-267. doi: 10.5152/TurkJOrthod.2022.20008.
Peeling of polytetrafluoroethylene (Teflon)-coated esthetic arch wires results in rough surfaces that may cause plaque accumulation, and the exposed core material may not meet the esthetic expectations of patients. The aim of this study was to evaluate the in-vivo surface roughness, Streptococcus mutans colonization, and color stability of Teflon-coated arch wires from 3 different manufacturers.
Surface roughness and color data of 0.016-inch and 0.016 × 0.022-inch Teflon-coated arch wires from 3 different manufacturers were recorded as they were received (T0) and after 28 days of clinical exposure (retrieved) (T1) using an atomic force microscope and a spectrophotometer. The amount of S. mutans was assessed in terms of colony-forming units on the as-received and retrieved wires.
The surface roughness increased significantly, and a clinically noticeable color change was observed in all groups after clinical use (P < .005). There was no statistically significant difference in the amount of S. mutans adhesion for most of the wires. No significant correlation was found between the amount of S. mutans adhesion and the surface roughness.
All the arch wires showed increased surface roughness and clinically noticeable color change. The surface roughness values were not found to be correlated with the amount of S. mutans adhesion.
聚四氟乙烯（特氟龙）涂层的美观弓丝出现剥落会导致表面粗糙，这可能会造成菌斑堆积，而且暴露的芯材可能无法满足患者的美观期望。本研究的目的是评估来自3个不同制造商的特氟龙涂层弓丝的体内表面粗糙度、变形链球菌定植情况及颜色稳定性。
使用原子力显微镜和分光光度计记录来自3个不同制造商的0.016英寸和0.016×0.022英寸特氟龙涂层弓丝在收到时（T0）以及临床暴露28天后（回收时）（T1）的表面粗糙度和颜色数据。根据收到时和回收的弓丝上的菌落形成单位评估变形链球菌的数量。
临床使用后，所有组的表面粗糙度均显著增加，且观察到临床上明显的颜色变化（P <.005）。大多数弓丝在变形链球菌黏附量方面无统计学显著差异。变形链球菌黏附量与表面粗糙度之间未发现显著相关性。
所有弓丝均表现出表面粗糙度增加和临床上明显的颜色变化。未发现表面粗糙度值与变形链球菌黏附量相关。
