Versiani M A, Carvalho-Junior J R, Padilha M I A F, Lacey S, Pascon E A, Sousa-Neto M D
Department of Endodontics, Universidade de Ribeirão Preto, Ribeirão Preto, São Paulo, Brazil.
Int Endod J. 2006 Jun;39(6):464-71. doi: 10.1111/j.1365-2591.2006.01105.x.
To evaluate setting time, solubility and disintegration, flow, film thickness, and dimensional change following setting in a dual-cured resin root canal sealer Epiphany compared with an epoxy-resin-based sealer AH Plus.
The experiments were performed according to ANSI/ADA Specification 57 which tests the physicochemical properties of endodontic sealing materials. Five samples of each material were tested for each of the properties. In addition, deionized distilled water from the solubility test of Epiphany was submitted for analysis of the cations Fe, Ni, Ca, Mg, Zn, Na, and K in an atomic absorption spectrometer. Three samples were analysed.
There were no statistical differences (P>0.05) in flow (AH Plus: 38.57 mm; Epiphany: 35.74 mm) and film thickness (AH Plus: 10.6 microm; Epiphany: 20.1 microm). The solubility (AH Plus: 0.21%; Epiphany: 3.41%) and dimensional alterations following setting (AH Plus: expansion of 1.3%; Epiphany: expansion of 8.1%) were statistically different (P<0.05). The setting times of both sealants were in accordance with ANSI/ADA requirements.
Setting time, flow, and film thickness tests for both cements conformed to ANSI/ADA standards. Dimensional alteration test for both cements were greater than values considered acceptable by ANSI/ADA. Epiphany values regarding solubility were also greater than values considered acceptable by ANSI/ADA.
评估双固化树脂根管封闭剂Epiphany与环氧树脂类封闭剂AH Plus相比，其凝固时间、溶解性与崩解性、流动性、薄膜厚度以及凝固后的尺寸变化。
实验依据ANSI/ADA规范57进行，该规范用于测试牙髓腔封闭材料的物理化学性质。每种材料取五个样本进行各项性能测试。此外，将Epiphany溶解性测试中的去离子蒸馏水提交至原子吸收光谱仪，分析其中的阳离子铁、镍、钙、镁、锌、钠和钾。分析三个样本。
流动性（AH Plus：38.57毫米；Epiphany：35.74毫米）和薄膜厚度（AH Plus：10.6微米；Epiphany：20.1微米）方面无统计学差异（P>0.05）。溶解性（AH Plus：0.21%；Epiphany：3.41%）以及凝固后的尺寸变化（AH Plus：膨胀1.3%；Epiphany：膨胀8.1%）存在统计学差异（P<0.05）。两种封闭剂的凝固时间均符合ANSI/ADA要求。
两种封闭剂的凝固时间、流动性和薄膜厚度测试均符合ANSI/ADA标准。两种封闭剂的尺寸变化测试结果均大于ANSI/ADA认为可接受的值。Epiphany的溶解性数值也大于ANSI/ADA认为可接受的值。
