Effect of lowering the pH of sodium hypochlorite on dissolving tissue in vitro

被引：58

作者：

Christensen, Chad E. ^{[1
]}

McNeal, Sandre F. ^{[2
]}

Eleazer, Paul ^{[1
]}

机构：

[1] Univ Alabama Birmingham, Dept Endodont, Birmingham, AL 35294 USA

[2] Univ Alabama Birmingham, Dept Diagnost Sci, Birmingham, AL 35294 USA

来源：

JOURNAL OF ENDODONTICS | 2008年 / 34卷 / 04期

关键词：

pH; sodium hypochlorite; tissue dissolution;

D O I：

10.1016/j.joen.2008.01.001

中图分类号：

R78 [口腔科学];

学科分类号：

1003 ;

摘要：

Sodium hypochlorite (NaOCl), a common antimicrobial and tissue-dissolving irrigant, comes from the manufacturer at pH 12. When the pH is lowered, NaOCl becomes more antimicrobial. The aim of this study was to examine what effect lowering the pH has on the property of tissue dissolution. Seven groups were tested for dissolving porcine muscle tissue at varying pH, concentrations, and times. When groups were examined solely by pH, there was no significant difference between the pH 12 and 9 groups, but a statistically significant level was found between pH 12 and 9 versus the pH 6 groups (P <.05). Higher concentrations and greater time periods all led to greater amounts of tissue dissolution.

引用

页码：449 / 452

页数：4

共 24 条

[21]

Rosenfeld E F, 1978, J Endod, V4, P140, DOI 10.1016/S0099-2399(78)80129-0

[22] The effects of temperature on sodium hypochlorite short-term stability, pulp dissolution capacity, and antimicrobial efficacy [J].

Sirtes, G ;

Waltimo, T ;

Schaetzle, M ;

Zehnder, M .

JOURNAL OF ENDODONTICS, 2005, 31 (09) :669-671

[23]

Walker A., 1936, J Am Dent Assoc, V23, P1418

[24] Tissue-dissolving capacity and antibacterial effect of buffered and unbuffered hypochlorite solutions [J].

Zehnder, M ;

Kosicki, D ;

Luder, H ;

Sener, B ;

Waltimo, T .

ORAL SURGERY ORAL MEDICINE ORAL PATHOLOGY ORAL RADIOLOGY AND ENDODONTOLOGY, 2002, 94 (06) :756-762

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