MTA 和含氢氧化钙的密封剂的密封性。
Sealability of MTA and calcium hydroxidecontaining sealers.
机构信息
Department of Endodontics, Araçatuba School of Dentistry, UNESP - Univ. Estadual Paulista, Araçatuba, SP, Brazil.
出版信息
J Appl Oral Sci. 2012 May-Jun;20(3):347-51. doi: 10.1590/s1678-77572012000300009.
OBJECTIVES
The aim of this study was to evaluate the apical sealability of Fillapex®, endo-CPM-Sealer® and Sealapex®.
MATERIAL AND METHODS
Ninety-four freshly extracted single-rooted teeth were selected and decoronated. All teeth were radiographed to confirm the existence of a single and straight root canal, which was prepared using Protaper Universal and 2.5% sodium hypochlorite. The teeth were randomly divided in groups of 10 specimens each according to the sealer, and the canals were filled using the single cone technique and one of the sealers. Four additional teeth were used as controls. The teeth were submitted to dye leakage with Rhodamine B for 24 h but using vacuum on the initial 15 min. Thereafter, they were cut longitudinally and the leakage was measured in a linear fashion from apex to crown. Data were analyzed by ANOVA and Tukey's tests at 5% significance level.
RESULTS
Fillapex® and Sealapex® showed significantly less dye leakage than endo-CPM-Sealer® (p<0.05).
CONCLUSIONS
It was concluded that Fillapex® and Sealapex® were able to prevent apical dye leakage differently from endo-CPM-Sealer®.
目的
本研究旨在评估 Fillapex®、endo-CPM-Sealer®和 Sealapex®的根尖封闭性。
材料与方法
选择 94 颗新鲜离体单根牙并进行去冠处理。所有牙齿均行 X 线检查以确认存在单一直根管，并用 Protaper Universal 和 2.5%次氯酸钠进行根管预备。将牙齿按密封剂随机分为 10 个样本组，用单根技术和其中一种密封剂填充根管。另外 4 颗牙齿作为对照。用 Rhodamine B 对牙齿进行染料渗漏试验 24 小时，但在前 15 分钟用真空处理。然后，将牙齿沿纵轴切开，从根尖到冠部以线性方式测量渗漏。数据采用方差分析和 Tukey 检验，显著性水平为 5%。
结果
Fillapex®和 Sealapex®的染料渗漏明显少于 endo-CPM-Sealer®（p<0.05）。
结论
Fillapex®和 Sealapex®在防止根尖染料渗漏方面与 endo-CPM-Sealer®不同。
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