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Periapical tissue healing after post space preparation with or without use of a protection plug and root canal exposure to the oral environment: study in dogs
Holland, Roberto; Manne, Luciana Noronha; Souza, Valdir de; Murata, Sueli Satomi; Dezan Júnior, Eloi.
  • Holland, Roberto; São Paulo State University. School of Dentistry of Araçatuba. Department of Restorative Dentistry. Discipline of Endodontics. Araçatuba. BR
  • Manne, Luciana Noronha; University of Marília. School of Dentistry. Postgraduate Program in Endodontics. Marília. BR
  • Souza, Valdir de; São Paulo State University. School of Dentistry of Araçatuba. Department of Restorative Dentistry. Discipline of Endodontics. Araçatuba. BR
  • Murata, Sueli Satomi; University of Marília. School of Dentistry. Postgraduate Program in Endodontics. Marília. BR
  • Dezan Júnior, Eloi; São Paulo State University. School of Dentistry of Araçatuba. Department of Restorative Dentistry. Discipline of Endodontics. Araçatuba. BR
Braz. dent. j ; 18(4): 281-288, 2007. ilus, tab
Article in English | LILACS | ID: lil-474465
ABSTRACT
The purpose of this study was to evaluate the influence of coronal leakage on the healing of dogs' periapical tissues after root canal filling, post space preparation and protection or not with a temporary sealer plug. Forty root canals of dogs' teeth were instrumented and filled by the lateral condensation technique with gutta-percha points and Endomethasone or CRCS sealers. After post space preparation, the remaining filling material was protected or not with a plug of temporary Coltosol sealer and exposed to the oral environment for 90 days. Thereafter, the animals were sacrificed and the specimens were removed and prepared for histomorphological and histobacteriological analysis. The findings revealed 35 percent of microbial leakage in the groups without plugs and 15 percent of leakage in the groups with plugs. Statistical analysis showed that the use of a Coltosol plug improved significantly the histomorphological results regardless of the type of root canal sealer (p=0.05) and that CRCS and Endomethasone sealers showed similar results (p>0.05).
RESUMO
O propósito deste trabalho foi avaliar a influência da infiltração coronária no reparo dos tecidos periapicais após obturação dos canais radiculares, preparo para pino e proteção ou não de um "plug" de cimento temporário. Quarenta canais de dentes de cães foram instrumentados e obturados pela técnica da condensação lateral ativa com cones de guta-percha e os cimentos Endomethasone e CRCS. Após preparo para pino os remanescentes do material obturador foram protegidos ou não com um "plug" do cimento temporário Coltosol e expostos ao meio oral por 90 dias. Decorrido este período, os animais foram mortos e os espécimes foram removidos e preparados para análises histomorfológica e histobacteriológica. Foi observado 35 por cento de casos de infiltração bacteriana nos grupos sem "plug" e 15 por cento nos grupos com "plug". Concluiu-se estatisticamente que o "plug" de Coltosol foi eficiente no controle da infiltração coronária de microorganismos (p=0,05), e que os cimentos CRCS e Endomethasone apresentaram resultados semelhantes (p>0,05).
Subject(s)

Full text: Available Index: LILACS (Americas) Main subject: Periapical Tissue / Root Canal Obturation / Post and Core Technique / Protective Agents / Dental Pulp Cavity Limits: Animals Language: English Journal: Braz. dent. j Journal subject: Dentistry Year: 2007 Type: Article Affiliation country: Brazil Institution/Affiliation country: São Paulo State University/BR / University of Marília/BR

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Full text: Available Index: LILACS (Americas) Main subject: Periapical Tissue / Root Canal Obturation / Post and Core Technique / Protective Agents / Dental Pulp Cavity Limits: Animals Language: English Journal: Braz. dent. j Journal subject: Dentistry Year: 2007 Type: Article Affiliation country: Brazil Institution/Affiliation country: São Paulo State University/BR / University of Marília/BR