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Open Access 01-05-2012 | Original Article

Histomorphometric analysis of inflammatory response and necrosis in re-implanted central incisor of rats treated with low-level laser therapy

Authors: Rianne Gomes Vilela, Kjersti Gjerde, Lucio Frigo, Ernesto Cesar Pinto Leal Junior, Rodrigo Álvaro Brandão Lopes-Martins, Brígida Mônica Kleine, Igor Prokopowitsch

Published in: Lasers in Medical Science | Issue 3/2012

Abstract

Low-level laser therapy is a tool employed in the management of post-operative inflammation process and in the enhancement of reparative process. The aim of the study was to perform histological evaluation of dental and periodontal ligament of rats central upper-left incisor teeth re-implanted and irradiated with low-level laser (InGaAl, 685 nm, 50 J/cm²) 15, 30, and 60 days after re-implantation. Seventy-two male rats had the central upper left incisor removed and kept for 15 min on dry gauze before replantation. Laser was irradiated over the root surface and empty alveolus prior replantation and over surrounding mucosa after the re-implantation. After histological procedures, all slices were analyzed regarding external resorption area and histological aspects. We observed an increase of root resorption (p < 0.05) in the control group compared to the laser group at 15, 30, and 60 days. These results showed that the laser groups developed less root resorption areas than the control group in all experimental periods. Additionally, histological analysis revealed less inflammatory cells and necrotic areas in laser groups.

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Title: Histomorphometric analysis of inflammatory response and necrosis in re-implanted central incisor of rats treated with low-level laser therapy
Authors: Rianne Gomes Vilela
Kjersti Gjerde
Lucio Frigo
Ernesto Cesar Pinto Leal Junior
Rodrigo Álvaro Brandão Lopes-Martins
Brígida Mônica Kleine
Igor Prokopowitsch
Publication date: 01-05-2012
Publisher: Springer-Verlag
Published in: Lasers in Medical Science / Issue 3/2012
Print ISSN: 0268-8921
Electronic ISSN: 1435-604X
DOI: https://doi.org/10.1007/s10103-011-0937-7

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Histomorphometric analysis of inflammatory response and necrosis in re-implanted central incisor of rats treated with low-level laser therapy

Abstract

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Abstract

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