Kahn F H, Rosenberg P A, Gliksberg J
Department of Endodontics, Division of Surgical Sciences, New York University, College of Dentistry 10010, USA.
J Endod. 1995 May;21(5):277-80. doi: 10.1016/s0099-2399(06)80998-2.
The objective of this in vitro study was to evaluate the efficacy of a variety of endodontic irrigating devices. This study utilized plastic blocks with artificial canals to simulate the clinical setting. The canals were instrumented, and red food dye was introduced into each canal. The blocks were placed in a jig to simulate maxillary and mandibular arch orientation. Irrigation was performed with: (a) B-D 22-gauge needle; (b) Monoject Endodontic Needle 23 and 27 gauge; (c) Max-i-Probe 25-, 28-, and 30-gauge probes; (d) Cavi-Endo ultrasonic handpiece; and (e) Micromega 1500 subsonic handpiece. A Sony Camcorder was used to record the effect of irrigation on the simulated canal contents. Tape review enabled the investigators to observe dye clearance effected by each modality. The Max-i-Probe probes were the most effective instrument used to clear dye from the simulated canals in both the mandibular and maxillary positions.
这项体外研究的目的是评估多种牙髓冲洗器械的疗效。本研究使用带有人工根管的塑料块来模拟临床环境。对根管进行预备，然后将红色食用色素引入每个根管。将塑料块放置在夹具中以模拟上颌和下颌牙弓的方向。使用以下器械进行冲洗：(a) B-D 22号针头；(b) Monoject牙髓针23号和27号；(c) Max-i-Probe 25号、28号和30号探针；(d) Cavi-Endo超声手机；以及(e) Micromega 1500亚声手机。使用索尼摄像机记录冲洗对模拟根管内容物的影响。通过查看录像带，研究人员能够观察到每种冲洗方式对色素清除的效果。Max-i-Probe探针是用于清除下颌和上颌位置模拟根管中色素的最有效器械。
