Grigg T R, Liewehr F R, Patton W R, Buxton T B, McPherson J C
U.S. Army Dental Corps, Ft. Hood, TX, USA.
J Endod. 2004 Sep;30(9):649-52. doi: 10.1097/01.don.0000121617.67923.05.
The purpose of this study was to compare the wicking propensity of multifilament sutures. Dexon II, Vicryl, and black silk suture (BSS) were dipped in saline or soaked for 48 h, then suspended on a microscope slide. Fluorescein isothiocyanate-dextran (FITC-D) was placed at the suture mid points, and its movement was observed using fluorescence microscopy. The experiment was repeated, replacing the FITC-D with mixture of S. salivarius and saline, incubating the suture specimens in culture medium, and evaluating microbial growth. Dipped sutures showed FITC-D movement in the Dexon II group only. All 48-h soaked sutures demonstrated FITC-D movement with significant (p < 0.005) differences in mean times: BSS 179 +/- 42 s; Vicryl 120 +/- 26 s; and Dexon II 32 +/- 2 s. Dexon II suture demonstrated wicking of S. salivarius, whereas Vicryl and BSS did not (p < 0.05). These results suggest that BSS and Vicryl sutures do not wick as readily as Dexon II does.
本研究的目的是比较多股缝线的吸湿倾向。将聚乙醇酸缝线（Dexon II）、聚丙交酯乙交酯缝线（Vicryl）和黑色丝线（BSS）浸入盐水中或浸泡48小时，然后悬挂在载玻片上。将异硫氰酸荧光素-葡聚糖（FITC-D）置于缝线中点，并用荧光显微镜观察其移动情况。重复该实验，用唾液链球菌和盐水的混合物代替FITC-D，将缝线标本在培养基中培养，并评估微生物生长情况。浸入的缝线仅在Dexon II组中显示出FITC-D移动。所有浸泡48小时的缝线均显示出FITC-D移动，平均时间存在显著差异（p<0.005）：BSS为179±42秒；Vicryl为120±26秒；Dexon II为32±2秒。Dexon II缝线显示出唾液链球菌的吸湿现象，而Vicryl和BSS则没有（p<0.05）。这些结果表明，BSS和Vicryl缝线的吸湿能力不如Dexon II。
