Immunohistochemical evaluation of the effects of sodium hyplochlorite on dentin collagen and glycosaminoglycans

被引:51
作者
Oyarzún, A
Cordero, AM
Whittle, M
机构
[1] Univ Chile, Fac Odontol, Unidad Bioestruct, Santiago, Chile
[2] Univ Chile, Fac Odontol, Dept Conservat Dent, Santiago, Chile
关键词
D O I
10.1097/00004770-200203000-00002
中图分类号
R78 [口腔科学];
学科分类号
1003 ;
摘要
To test the hypothesis that a commercial solution of 5% NaOCl produces structural and molecular alterations in the collagen and glycosaminoglycans of mineralized and demineralized dentin, radicular segments from human teeth were treated with 5% NaOCl for 2 min at room temperature. As a control, distilled water replaced NaOCl. The experimental and control specimens were processed for indirect immunofluorescence by using antitype 1 collagen and antichondroitin sulfate antibodies. Tissue sections were morphometrically analyzed. A single exposure for 2 min to a 5% NaOCl solution produced a drastic loss of immunoreactivity in the dentin surface for both antibodies that were used in demineralized specimens. A narrow and irregular band of fluorescence loss was detected in mineralized-dentin segments when anticoilagen antibodies were used. The results of this study suggest that 5% NaOCl induces alterations in dentin collagen and glycosaminoglycans and show the protective role of hydroxyapatite on organic matrix stability.
引用
收藏
页码:152 / 156
页数:5
相关论文
共 16 条
[1]  
Ausiello P, 1997, AM J DENT, V10, P237
[2]   INFLUENCE OF SODIUM-HYPOCHLORITE ON THE PERMEABILITY AND STRUCTURE OF CERVICAL HUMAN DENTIN [J].
BARBOSA, SV ;
SAFAVI, KE ;
SPANGBERG, LSW .
INTERNATIONAL ENDODONTIC JOURNAL, 1994, 27 (06) :309-312
[3]  
BUTLER WT, 1992, OPER DENT, P18
[4]   EFFECT OF TEMPERATURE ON COLLAGEN-DISSOLVING ABILITY OF SODIUM-HYPOCHLORITE ENDODONTIC IRRIGANT [J].
CUNNINGHAM, WT ;
BALEKJIAN, AY .
ORAL SURGERY ORAL MEDICINE ORAL PATHOLOGY ORAL RADIOLOGY AND ENDODONTICS, 1980, 49 (02) :175-177
[5]   SMEAR LAYER REMOVAL BY ROOT-CANAL IRRIGANTS - A COMPARATIVE SCANNING ELECTRON-MICROSCOPIC STUDY [J].
GARBEROGLIO, R ;
BECCE, C .
ORAL SURGERY ORAL MEDICINE ORAL PATHOLOGY ORAL RADIOLOGY AND ENDODONTICS, 1994, 78 (03) :359-367
[6]   THE EFFECTS OF A SODIUM-HYPOCHLORITE TREATMENT ON DEMINERALIZED ROOT DENTIN [J].
INABA, D ;
DUSCHNER, H ;
JONGEBLOED, W ;
ODELIUS, H ;
TAKAGI, O ;
ARENDS, J .
EUROPEAN JOURNAL OF ORAL SCIENCES, 1995, 103 (06) :368-374
[7]   THE EFFECT OF VARIOUS DECALCIFYING AGENTS ON CARTILAGE PROTEOGLYCANS [J].
IPPOLITO, E ;
LAVELLE, S ;
PEDRINI, V .
STAIN TECHNOLOGY, 1981, 56 (06) :367-373
[8]   EFFECTIVE SHELF-LIFE OF PREPARED SODIUM-HYPOCHLORITE SOLUTION [J].
JOHNSON, BR ;
REMEIKIS, NA .
JOURNAL OF ENDODONTICS, 1993, 19 (01) :40-43
[9]  
NAKURAMA H, 1985, ORAL SURG ORAL MED O, V60, P322
[10]  
Nikaido T, 1999, AM J DENT, V12, P177