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Publisher: Peytchinski, Gospodin Iliev
ISSN: 1312 773X (Online)
Issue: 2014, vol. 20, issue 5
Subject Collection: Oral and Dental Medicine
Pages: 638-641
DOI: 10.5272/jimab.2014205.638
Published online: 06 November 2014
J of IMAB 2014 Oct-Dec;20(5):638-641
IN VIVO ANALYSIS OF SOME KEY CHARACTERISTICS OF THE APICAL ZONE IN TEETH WITH CHRONIC APICAL PERIODONTITIS.
Angela Gusiyska
.
Department of Conservative Dentistry, Faculty of Dental Medicine, Medical University – Sofia, Bulgaria.
ABSTRACT:
Introduction: The pathogenesis of internal and external resorptive processes in the dental tissues and those of the periapical zone is not fully understood, but the main purpose, either in teeth with internal resorption or in teeth with periapical lesions, is decontamination of the endodontic space and subsequent three-dimensional obturation in order to isolate periapical and oral tissues and prevent reinfection.
Purpose: The aim of this article is to analyze in vivo some key characteristics of the apical zone in teeth with chronic apical periodontitis.
Material and Methods: To facilitate the clinical protocol after the radiographic analysis and assessment of patency, the working lengths of 153 root canals (n = 153) in 106 teeth were determined. The clinical widths of the apical narrowing were measured by using the last instrument (ISO 0.02 tapered file), which can move freely through the apical narrowing after electrometric determination of the working length (Raypex 5 /VDW, Germany/).
Results and Discussion: Determination of working width and working length is important for realizing the first stage of decontamination – maximum instrumentation of the endodontic space and choice of a clinical protocol. The classification of root canals in a particular group according to the relative patency or lysed apical opening is important for the selection of obturation technique, which is essential for reducing the microleakage in the zone.
Conclusion: Since the target of this work were teeth with CAP, in the majority of the cases with clinical findings of root canals with preexisting filling, radicular pins, obliteration, separated canal instruments, perforations at different levels, via falsa or thresholds, the access to the apical zone was not subjected to a closely observed instrumental clinical protocol. In the treatment of each case, however, the clinical principles of modern endodontic treatment were closely observed.
Key words: apical zone, chronic apical periodontitis, external apical resorption,
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Please cite this article in PubMed Style or AMA (American Medical Association) Style:
Gusiyska A. In vivo analysis of some key characteristics of the apical zone in teeth with chronic apical periodontitis. J of IMAB. 2014 Oct-Dec;20(5):638-641. doi: http://dx.doi.org/10.5272/jimab.2014205.638
Correspondence to: Dr. Angela Gusiyska, PhD, Department of Conservative Dentistry, Faculty of Dental Medicine, Medical University – Sofia; 1, Sv. Georgi Sofiyski Blvd, 1431 Sofia, Bulgaria; E-mail: gusiyska@yahoo.com
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Received: 15 July 2014
Published online: 06 November 2014