Laser-induced agitation and cavitation from proprietary honeycomb tips for endodontic applications
Laser-induced agitation and cavitation from proprietary honeycomb tips for endodontic applications
复制标题
用于牙髓应用的专有蜂窝尖端的激光诱导搅拌和空化
作者：
R. George;Keith T. Chan;L. Walsh
激光在充满液体的根管中产生的空化和搅动沿着根管壁沿着产生流体运动和剪切应力，从而增强玷污层和生物膜的去除。当与次氯酸钠和EDTA一起使用时，激光激活水溶液可以提高根管的清创和消毒效率。然而，使用具有这种解决方案的前向发射激光纤维会造成将液体驱动通过根尖的风险，这可能导致术后并发症。本研究的目的是评估由一种新型的蜂窝尖端引起的流体搅拌的机制。玻璃毛细管填充蒸馏水被用来复制单牙根管。使用980 nm脉冲二极管激光器，其具有200 μm直径的平尖端、管蚀刻锥形尖端和蜂窝尖端。为了记录流体运动，将管背光并使用连接到显微镜的数码相机成像。蜂窝尖端产生搅动，流体运动指向壁上，而传统的普通纤维和圆锥形尖端都产生流体运动，主要是在向前的方向。蜂窝尖端的使用改变了流体搅动的模式，并且这种横向定向效应可能降低流体挤出超过顶点的风险。
Cavitation and agitation generated by lasers in fluid-filled root canals create fluid movement and shear stresses along the root canals walls, enhancing removal of the smear layer and biofilm. When used with sodium hypochlorite and EDTA, laser activation of aqueous fluids can increase the efficiency of debridement and disinfection of root canals. However, the use of forward-firing laser fibers with such solutions poses a risk of driving fluid past the root apex, which could cause postoperative complications. The purpose of this study was to evaluate the mechanism of fluid agitation caused by a novel honeycomb tip. Glass capillary tubes filled with distilled water were used to replicate single-tooth root canals. A 980 nm pulsed diode laser was used with 200 μm diameter plain tips, tube-etched conical tips, and honeycomb tips. To record fluid movements, the tubes were backlit and imaged using a digital camera attached to a microscope. The honeycomb tips generated agitation with fluid movement directed onto the walls, while both the conventional plain fibers and the conical tips created fluid movement largely in a forward direction. The use of honeycomb tips alters the pattern of fluid agitation, and this laterally directed effect might lower the risk of fluid extrusion beyond the apex.
牙本质渗透性：牙髓手术对根板的影响。
影响因子：
4.2
作者：
Fogel,HM;Pashley,DH
通讯作者：
Pashley,DH