Camargo Rafael Verardino de, Silva-Sousa Yara Terezinha Corrêa, Rosa Rodrigo Presotto Ferreira da, Mazzi-Chaves Jardel Francisco, Lopes Fabiane Carneiro, Steier Liviu, Sousa-Neto Manoel Damião
Universidade de São Paulo - USP, School of Dentistry of Ribeirão Preto, Department of Restorative Dentistry, Ribeirão Preto, SP, Brazil.
Universidade de Ribeirão Preto - Unaerp, Faculty of Dentistry, Ribeirão Preto, SP, Brazil.
Braz Oral Res. 2017 Aug 21;31:e72. doi: 10.1590/1807-3107BOR-2017.vol31.0072.
To assess the physicochemical properties of AH Plus, GuttaFlow 2, GuttaFlow BioSeal, and MM Seal, five samples of each root canal sealer were evaluated to determine their setting time (ST), dimensional change (DC), solubility (SL), flow (FL), and radiopacity (RD) according to American National Standards Institute/American Dental Association (ANSI/ADA) Specification 57. The distilled and deionized water obtained from the SL test were subjected to atomic absorption spectrometry to observe the presence of Ca2+, K+, and Na+ ions. Statistical analysis was performed by using one-way ANOVA and Tukey-Kramer tests (p < 0.05). The following results were obtained: ST (min) (AH Plus 463.6 ± 13.22; GuttaFlow 2 24.35 ± 2.78; GuttaFlow Bioseal 17.4 ± 0.55; MM Seal 47.60 ± 4.39), DC (%) (AH Plus 0.06 ± 0.12; GuttaFlow 2 -26.06 ± 1.24; GuttaFlow Bioseal 2.10 ± 1.47; MM Seal 8.47 ± 2.41), SL (%) (AH Plus 0.41 ± 0.21; GuttaFlow 2 5.13 ± 4.11; GuttaFlow Bioseal 3.03 ± 1.05; MM Seal 0.94 ± 0.17), FL (mm) (AH Plus 36.42 ± 0.40; GuttaFlow 2 36.44 ± 0.05; GuttaFlow Bioseal 35.4 ± 0.03; MM Seal 52.75 ± 0.60), and RD (mmAl) (AH Plus 7.52 ± 1.59; GuttaFlow 2 6.85 ± 0.14; GuttaFlow Bioseal 7.02 ± 0.18; MM Seal 3.32 ± 0.90). ST, DC, SL, FL, and RD showed statistical differences among the root canal sealers (p < 0.05). As AH Plus showed the lowest DC and SL values (p < 0.05), the findings indicate that this sample is the only sealer conforming to ANSI/ADA standards.
为评估AH Plus、GuttaFlow 2、GuttaFlow BioSeal和MM Seal的物理化学性质，根据美国国家标准学会/美国牙科协会（ANSI/ADA）规范57，对每种根管封闭剂的五个样本进行评估，以确定其凝固时间（ST）、尺寸变化（DC）、溶解度（SL）、流动性（FL）和射线不透性（RD）。对SL测试中获得的蒸馏水和去离子水进行原子吸收光谱分析，以观察Ca2+、K+和Na+离子的存在情况。采用单因素方差分析和Tukey-Kramer检验进行统计分析（p < 0.05）。获得以下结果：ST（分钟）（AH Plus 463.6 ± 13.22；GuttaFlow 2 24.35 ± 2.78；GuttaFlow Bioseal 17.4 ± 0.55；MM Seal 47.60 ± 4.39），DC（%）（AH Plus 0.06 ± 0.12；GuttaFlow 2 -26.06 ± 1.24；GuttaFlow Bioseal 2.10 ± 1.47；MM Seal 8.47 ± 2.41），SL（%）（AH Plus 0.41 ± 0.21；GuttaFlow 2 5.13 ± 4.11；GuttaFlow Bioseal 3.03 ± 1.05；MM Seal 0.94 ± 0.17），FL（毫米）（AH Plus 36.42 ± 0.40；GuttaFlow 2 36.44 ± 0.05；GuttaFlow Bioseal 35.4 ± 0.03；MM Seal 52.75 ± 0.60），以及RD（mmAl）（AH Plus 7.52 ± 1.59；GuttaFlow 2 6.85 ± 0.14；GuttaFlow Bioseal 7.02 ± 0.18；MM Seal 3.32 ± 0.90）。ST、DC、SL、FL和RD在根管封闭剂之间显示出统计学差异（p < 0.05）。由于AH Plus显示出最低的DC和SL值（p < 0.05），研究结果表明该样本是唯一符合ANSI/ADA标准的封闭剂。
