Ultrastructural Examination of Failed Molar Retreatment with Secondary Apical Periodontitis: An Examination of Endodontic Biofilms in an Endodontic Retreatment Failure

被引：64

作者：

Carr, Gary B. ^{[1
]}

Schwartz, Richard S.

Schaudinn, Christoph ^{[2
]}

Gorur, Amita ^{[3
]}

Costerton, J. William ^{[4
,5
]}

机构：

[1] Pacific Endodont Res Fdn, San Diego, CA 92121 USA

[2] USC Sch Dent, Ctr Biofilms, Los Angeles, CA USA

[3] Lawrence Berkeley Natl Lab, Berkeley, CA USA

[4] Allegheny Gen Hosp, Dept Orthoped Surg, Pittsburgh, PA 15212 USA

[5] Allegheny Singer Res Inst, Ctr Genom Sci, Pittsburgh, PA 15212 USA

来源：

JOURNAL OF ENDODONTICS | 2009年 / 35卷 / 09期

关键词：

Apical periodontitis; biofilm; endodontic failure; endodontic retreatment; ultrastructural; ROOT-FILLED TEETH; BACTERIAL BIOFILMS; PERIAPICAL LESIONS; MEMBRANE-VESICLES; SURVIVAL; CANALS;

D O I：

10.1016/j.joen.2009.05.035

中图分类号：

R78 [口腔科学];

学科分类号：

1003 ;

摘要：

A light and electron microscope examination of the resected root tip of a failing endodontically re-treated lower molar was examined. The tooth had been initially treated 10 years ago and then re-treated 2 years ago. The resected root tip was sectioned axially, and thin sections were examined through the entire length of the specimen. Thin sections were examined with a transmission electron microscope. The thin sections were randomly chosen along the isthmus areas between the mesiobuccal and mesiolingual canals. our findings suggest that a complex, variable, multispecies biofilm was present the entire length of the specimen. (J Endod 2009,35:1303-1309)

引用

页码：1303 / 1309

页数：7

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