与Apexit和Sealapex封闭剂相比，对Acroseal封闭剂的pH值和钙离子释放情况的评估。

Evaluation of pH and calcium ion release of Acroseal sealer in comparison with Apexit and Sealapex sealers.

作者信息

Eldeniz Ayce Unverdi, Erdemir Ali, Kurtoglu Firuze, Esener Timur

机构信息

Department of Endodontics, Faculty of Dentistry, University of Selcuk, Konya, Turkey.

出版信息

Oral Surg Oral Med Oral Pathol Oral Radiol Endod. 2007 Mar;103(3):e86-91. doi: 10.1016/j.tripleo.2006.10.018. Epub 2007 Jan 22.

DOI:10.1016/j.tripleo.2006.10.018

PMID:17241799

Abstract

OBJECTIVE

This is an in vitro assessment of pH level and calcium ion release exhibited by 3 calcium hydroxide-based root canal sealers-Sealapex, Apexit, and Acroseal.

STUDY DESIGN

The materials were prepared according to the manufacturers' instructions and placed in 1 cm long and 4 mm diameter tubes. The tubes were then immersed in a glass flask containing 10 mL bidistilled water (n = 15), which was sealed and stored at 37 degrees C before the materials had set. The control group contained bidistilled water with empty tubes (n = 12). At predetermined time intervals (24 h, 96 h, and 7, 15, and 28 days) the pH of the bidistilled water was tested with a pH meter and for released calcium by using spectrophotometry. The data were statistically analyzed using 1-way analysis of variance for the comparison of the materials at each time point. If the difference was significant, individual comparisons were performed by Tukey multiple comparisons test (alpha = .05).

RESULTS

Sealapex produced higher pH and released significantly higher calcium amounts than the other 2 sealers at all periods (P < .05). Apexit showed higher calcium release than Acroseal at the end of 15 days (P < .05). There was no significant difference in the pH between Apexit and Acroseal (P > .05).

CONCLUSION

The new Acroseal sealer presented the least calcium ion release and pH than Sealapex and less calcium ion release than Apexit sealer.

摘要

目的

本研究旨在对三种氢氧化钙类根管封闭剂——Sealapex、Apexit和Acroseal的pH值及钙离子释放情况进行体外评估。

研究设计

按照制造商说明书准备材料，并将其置于长度为1厘米、直径为4毫米的试管中。然后将试管浸入装有10毫升双蒸水的玻璃烧瓶中（n = 15），在材料凝固前将烧瓶密封并在37℃下储存。对照组为装有双蒸水的空试管（n = 12）。在预定的时间间隔（24小时、96小时、7天、15天和28天），使用pH计测试双蒸水的pH值，并采用分光光度法检测释放的钙离子。使用单因素方差分析对各时间点的材料数据进行统计学分析，以比较材料间的差异。若差异显著，则通过Tukey多重比较检验进行个体比较（α = 0.05）。