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Doctoral Thesis
DOI
Document
Author
Full name
Mariana Sales de Melo Soares
E-mail
Institute/School/College
Knowledge Area
Date of Defense
Published
Ribeirão Preto, 2018
Supervisor
Committee
Novaes Junior, Arthur Belem (President)
Bulle, Daniela Bazan Palioto
Chujfi, Eduardo Saba
Cirelli, Joni Augusto
Title in Portuguese
Avaliação da terapia fotodinâmica antimicrobiana em aplicações múltiplas associada à raspagem e alisamento radicular no tratamento da periodontite crônica em fumantes
Keywords in Portuguese
Fotoquimioterapia
Fotossensibilização
Fumantes
Periodontite crônica
Terapia fotodinâmica antimicrobiana
Abstract in Portuguese
O objetivo do estudo foi avaliar o efeito de repetidas aplicações da Terapia Fotodinâmica antimicrobiana (TFDa) adjuvante ao tratamento periodontal não cirúrgico em pacientes fumantes. Foram selecionados 20 indivíduos fumantes com diagnóstico clínico de periodontite crônica. O estudo foi do tipo boca dividida, sendo um lado utilizado a TFDa associada à raspagem e alisamento radicular (RAR) e no outro apenas RAR. Foi utilizado laser com 660nm de comprimento de onda associada ao fotosensibilizador fenotiazida e as aplicações foram realizadas em 4 episódios (dias 0, 2, 7 e 14). Todos os pacientes foram acompanhados por 90 dias. As avaliações clínicas de índice de placa (IP), profundidade de sondagem (PS), nível clínico de inserção (NCI), sangramento à sondagem (SS) e sangramento marginal (SM) foram realizadas no baseline, 0, 30 e 90 dias após a execução do tratamento. Foi realizada análise microbiológica para contagem de 40 espécies bacterianas da amostra subgengival da placa bacteriana (Checkerboard DNA-DNA hybridization). Níveis das citocinas do fluido crevicular gengival foram avaliados (Interleucina-1β, Interleucina-10 e Fator de Necrose Tumoral Alpha). Os dados obtidos foram analisados estatisticamente. Em geral não foram observadas diferenças estatisticamente significantes entre os grupos (p <0,05) nos parâmetros clínicos, microbiológicos e imunológicos 90 dias após o tratamento. O tratamento periodontal com RAR + TFDa em múltiplos episódios não promoveu benefícios adicionais à RAR no tratamento não cirúrgico da periodontite crônica em fumantes sem o uso de antibióticos sistêmicos
Title in English
Evaluation of antimicrobial photodynamic therapy in multiples episodes as an adjunct to non-surgical periodontal treatment in smokers
Keywords in English
Antimicrobial photodynamic therapy
Chronic periodontitis
Photochemotherapy
Photosensitizing
smokers
Abstract in English
The aim of this study was to investigate the additional influence of multiple applications of antimicrobial Photodynamic Therapy (aPDT) in smokers without use of systemic antibiotics. Twenty smokers with chronic periodontitis were treated in a split-mouth design study with aPDT adjunct to Scaling and Root Planing (SRP) or SRP only. aPDT was performed by using a laser light source with 660 nm wavelength associated with a photosensitizer. The applications were performed in four episodes (at days 0, 2, 7 and 14). All patients were monitored for 90 days. Plaque index, probing depth, clinical attachment level, bleeding on probing and marginal bleeding were performed at baseline, 0, 30 and 90 days after the SRP. Counts of 40 subgingival species in plaque samples were monitored (Checkerboard DNA-DNA hybridization). Gingival crevicular fluid and subgingival plaque samples were collected (Interleukin 1β, Interleukin 10 e Tumor necrosis factor. Data obtained were statistically analyzed. aPDT as an adjunct to SRP did not demonstrate statistically significant advantages on clinical parameters when compared with SRP alone. In general no statistic significant differences between groups were observed (p <0.05). Levels of anti-inflammatory cytokines and bacterial species were comparable in both groups at day 90 after treatment. Periodontal treatment with SRP + aPDT in multiples episodes was not able to improve results in the non-surgical treatment of chronic periodontitis in smokers when compared SRP alone, without the use of systemic antibiotics
 
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Publishing Date
2019-07-04
 
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