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不同氢氧化钙类根管内药物中钙离子、氢氧根离子释放及pH值水平的评估：一项体外研究。

Evaluation of calcium ion, hydroxyl ion release and pH levels in various calcium hydroxide based intracanal medicaments: An in vitro study.

作者信息

Fulzele Punit, Baliga Sudhindra, Thosar Nilima, Pradhan Debaprya

机构信息

Department of Pedodontics and Preventive Dentistry, Sharad Pawar Dental College, Sawangi, Wardha, Mahartashtra, India.

出版信息

Contemp Clin Dent. 2011 Oct;2(4):291-5. doi: 10.4103/0976-237X.91791.

DOI:10.4103/0976-237X.91791
PMID:22346155
原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC3276855/
Abstract

AIMS

Evaluation of calcium ion and hydroxyl ion release and pH levels in various calcium hydroxide based intracanal medicaments.

OBJECTIVE

The purpose of this study was to evaluate calcium and hydroxyl ion release and pH levels of calcium hydroxide based products, namely, RC Cal, Metapex, calcium hydroxide with distilled water, along with the new gutta-percha points with calcium hydroxide.

MATERIALS AND METHODS

The materials were inserted in polyethylene tubes and immersed in deionized water. The pH variation, Ca(++) and OH(-) release were monitored periodically for 1 week.

STATISTICAL ANALYSIS USED

Statistical analysis was carried out using one-way analysis of variance and Tukey's post hoc tests with PASW Statistics version 18 software to compare the statistical difference.

RESULTS

After 1 week, calcium hydroxide with distilled water and RC Cal raised the pH to 12.7 and 11.8, respectively, while a small change was observed for Metapex, calcium hydroxide gutta-percha points. The calcium released after 1 week was 15.36 mg/dL from RC Cal, followed by 13.04, 1.296, 3.064 mg/dL from calcium hydroxide with sterile water, Metapex and calcium hydroxide gutta-percha points, respectively.

CONCLUSIONS

Calcium hydroxide with sterile water and RC Cal pastes liberate significantly more calcium and hydroxyl ions and raise the pH higher than Metapex and calcium hydroxidegutta-percha points.

摘要

目的

评估各种氢氧化钙根管内药物中钙离子和氢氧根离子的释放情况以及pH值水平。

目标

本研究的目的是评估氢氧化钙类产品，即RC Cal、Metapex、氢氧化钙与蒸馏水混合液，以及新型含氢氧化钙的牙胶尖中钙离子和氢氧根离子的释放情况以及pH值水平。

材料与方法

将材料插入聚乙烯管中并浸入去离子水中。定期监测1周内的pH值变化、Ca(++)和OH(-)的释放情况。

所用统计分析方法

使用PASW Statistics 18软件进行单因素方差分析和Tukey事后检验，以比较统计差异。

结果

1周后，氢氧化钙与蒸馏水混合液和RC Cal分别将pH值提高到12.7和11.8，而Metapex和含氢氧化钙的牙胶尖观察到的变化较小。1周后，RC Cal释放的钙为15.36mg/dL，其次是氢氧化钙与无菌水混合液、Metapex和含氢氧化钙的牙胶尖，分别为13.04、1.296、3.064mg/dL。

结论

氢氧化钙与无菌水混合液和RC Cal糊剂释放的钙离子和氢氧根离子明显更多，且pH值升高幅度高于Metapex和含氢氧化钙的牙胶尖。

https://cdn.ncbi.nlm.nih.gov/pmc/blobs/c2b6/3276855/2f5bfa10af3e/CCD-2-291-g006.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/c2b6/3276855/3fb7babcc136/CCD-2-291-g004.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/c2b6/3276855/ca271027ed76/CCD-2-291-g005.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/c2b6/3276855/2f5bfa10af3e/CCD-2-291-g006.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/c2b6/3276855/3fb7babcc136/CCD-2-291-g004.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/c2b6/3276855/ca271027ed76/CCD-2-291-g005.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/c2b6/3276855/2f5bfa10af3e/CCD-2-291-g006.jpg

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