Yildirim Ayhan, Lübbers Heinz-Theo, Yildirim Vedat
Clinique et policlinique de chirurgie buccale et maxillo-faciale, Centre de médecine dentaire de lUniversité de Zurich, Zurich, Switzerland.
Swiss Dent J. 2016;126(2):150-1. doi: 10.61872/sdj-2016-02-06.
Gutta-percha is a tough plastic substance from the latex of several Malaysian trees of the sapodilla family that resembles rubber but contains more resin. It is especially used as insulation and in dentistry. Gutta-percha endodontic filling points were found to contain approximately 20% gutta-percha (matrix), 66% zinc oxide (filler), 11% heavy metal sulphates (radiopacifier), and 3% waxes and/or resins (plasticiser). The mechanical properties were indicative of a partially crystalline viscoelastic polymeric material.
古塔胶是一种坚韧的塑料物质，取自人心果科几种马来西亚树木的乳胶，类似橡胶但含有更多树脂。它特别用作绝缘材料和用于牙科。发现古塔胶根管充填尖约含20%的古塔胶（基质）、66%的氧化锌（填料）、11%的重金属硫酸盐（射线阻射剂）以及3%的蜡和/或树脂（增塑剂）。其机械性能表明它是一种部分结晶的粘弹性聚合材料。
