Histopathological analysis of persistent periapical lesions

Aim or Purpose: Analyze the factors associated with the existence of persistent periapical lesions by histopathological methods. Materials and Methods: 49 endodontically and prosthetically rehabilitated teeth with inaccessible persistent processes were selected. Periapical tissue samples of single a...

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Main Authors: Dr Josko Grgurevic, Dr Petra Nola Fuchs
Format: Article
Language:English
Published: Elsevier 2023-09-01
Series:International Dental Journal
Online Access:http://www.sciencedirect.com/science/article/pii/S0020653923008328
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author Dr Josko Grgurevic
Dr Petra Nola Fuchs
author_facet Dr Josko Grgurevic
Dr Petra Nola Fuchs
author_sort Dr Josko Grgurevic
collection DOAJ
description Aim or Purpose: Analyze the factors associated with the existence of persistent periapical lesions by histopathological methods. Materials and Methods: 49 endodontically and prosthetically rehabilitated teeth with inaccessible persistent processes were selected. Periapical tissue samples of single and double-rooted teeth with the root tip were taken during apicectomy and placed in labeled sterile glass vials with 10% formalin. After preparation, microscopic analysis was used to reveal microorganisms in the periapical area of the teeth and in the final part of the root canal. The findings, type and arrangement of inflammatory cells and dense connective and epithelial tissue were described. If possible, the lesions were characterized as true or pocket cysts. Non-standard pathohistological features were specifically described. Results: Fungi and Gram-positive cocci were found in 12% of the samples. Granulomatous processes were identified in 66%, granulomas with epithelial strips in 22%, and cysts in 6% of samples. Foreign material was present in 14%, and scarring was found in 2% of the samples. Conclusions: Periapical granulomas and cysts are most common periapical lesions, and pocket cysts have a very low incidence in treated cases. The cocci and fungi found in the periapical granuloma confirm the existence of an extra-root infection. Foreign material found in the periapical tissue causes foreign body reaction, so more attention should be paid to the depth to which the root canal is treated. Periapical scar occurs after conservative endodontic therapy and it manifests as x-ray translucence impossible to distinguish from unsuccessful endodontic treatment.
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spelling doaj.art-dbde13e3d55d4843aaa3e1d3a12e157d2023-09-24T05:13:25ZengElsevierInternational Dental Journal0020-65392023-09-0173S44S45Histopathological analysis of persistent periapical lesionsDr Josko Grgurevic0Dr Petra Nola Fuchs1SPZ, Zagreb, Croatia; Corresponding author.SPZ, Zagreb, CroatiaAim or Purpose: Analyze the factors associated with the existence of persistent periapical lesions by histopathological methods. Materials and Methods: 49 endodontically and prosthetically rehabilitated teeth with inaccessible persistent processes were selected. Periapical tissue samples of single and double-rooted teeth with the root tip were taken during apicectomy and placed in labeled sterile glass vials with 10% formalin. After preparation, microscopic analysis was used to reveal microorganisms in the periapical area of the teeth and in the final part of the root canal. The findings, type and arrangement of inflammatory cells and dense connective and epithelial tissue were described. If possible, the lesions were characterized as true or pocket cysts. Non-standard pathohistological features were specifically described. Results: Fungi and Gram-positive cocci were found in 12% of the samples. Granulomatous processes were identified in 66%, granulomas with epithelial strips in 22%, and cysts in 6% of samples. Foreign material was present in 14%, and scarring was found in 2% of the samples. Conclusions: Periapical granulomas and cysts are most common periapical lesions, and pocket cysts have a very low incidence in treated cases. The cocci and fungi found in the periapical granuloma confirm the existence of an extra-root infection. Foreign material found in the periapical tissue causes foreign body reaction, so more attention should be paid to the depth to which the root canal is treated. Periapical scar occurs after conservative endodontic therapy and it manifests as x-ray translucence impossible to distinguish from unsuccessful endodontic treatment.http://www.sciencedirect.com/science/article/pii/S0020653923008328
spellingShingle Dr Josko Grgurevic
Dr Petra Nola Fuchs
Histopathological analysis of persistent periapical lesions
International Dental Journal
title Histopathological analysis of persistent periapical lesions
title_full Histopathological analysis of persistent periapical lesions
title_fullStr Histopathological analysis of persistent periapical lesions
title_full_unstemmed Histopathological analysis of persistent periapical lesions
title_short Histopathological analysis of persistent periapical lesions
title_sort histopathological analysis of persistent periapical lesions
url http://www.sciencedirect.com/science/article/pii/S0020653923008328
work_keys_str_mv AT drjoskogrgurevic histopathologicalanalysisofpersistentperiapicallesions
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