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Featured researches published by Tauby Coutinho Filho.


Pesquisa Odontológica Brasileira | 2002

Penetração intratubular de cimentos endodônticos

Gustavo de Deus; Eduardo Diogo Gurgel Filho; Cláudio Maniglia Ferreira; Tauby Coutinho Filho

The purpose of this study was to evaluate the capacity of penetration of four endodontic sealers (Endo Fill, Sealapex, AH Plus and Pulp Canal Sealer) into dentinal tubules. Seventy-two extracted human maxillary anterior teeth were utilized in this study. The teeth were cleaned and shaped by means of the balanced-forces technique. The work length was established at 1 mm beyond the apex. Copious irrigation with 10 ml of 5.25% sodium hypochlorite was carried out. The teeth were divided in 8 groups - 4 had the smear layer maintained, and 4 had it removed. The smear layer was removed with a commercial solution of 17% EDTA, and the root canal system was flushed for 3 min. Finally, the roots were irrigated with 3 ml of 5.25% sodium hypochlorite. All teeth were sealed by means of the technique of the condensation wave with a medium nonstandardized cone. After filling, the roots were grooved, longitudinally split and examined under a scanning electron microscope (SEM). The focus of observation was the interface between the dentin and the sealing material. The Rickert sealer (Pulp Canal) presented the maximum penetration depths into the dentinal tubules, and Sealapex, the minimum. The Spearman test was used to determine whether there were significant differences between the groups. The removal of smear layer allowed significant penetration of the sealers (p £ 0.01).


Brazilian Oral Research | 2006

Analysis of the sealing ability of different obturation techniques in oval-shaped canals: a study using a bacterial leakage model

Gustavo de Deus; Cristiana Francescutti Murad; Claudia Reis; Eduardo Diogo Gurgel-Filho; Tauby Coutinho Filho

The aim of this study was to evaluate the sealing ability of 3 obturation techniques in oval canals using a bacterial leakage model. Seventy mandibular incisors with oval canals were selected after buccolingual and mesiodistal radiographs, and divided into three groups. After instrumentation, the canals were obturated respectively by lateral condensation (G1), warm vertical condensation (G2) and Thermafil (G3). Five root canals were not obturated and served as positive controls; five teeth with intact crowns served as negative controls. All teeth were mounted on a 2 chamber apparatus and then exposed to human saliva. The number of days required for the entire contamination of the root canals was recorded, observing the turbidity of the BHI broth, for a period of 100 days. 84.21% of the samples from the lateral condensation group (G1); 84.21% of the samples from the warm vertical condensation group (G2); and 89.47% of the samples from the Thermafil System group (G3) showed no contamination at the end of the study. No statistical significant difference was found among the three techniques. The quality of the apical seal in the three techniques tested was similar.


Brazilian Oral Research | 2006

The influence of the surgical operating microscope in locating the mesiolingual canal orifice: a laboratory analysis

Tauby Coutinho Filho; Renata Sá La Cerda; Eduardo Diogo Gurgel Filho; Gustavo de Deus; Karen Machado Magalhães

The aim of this study was to evaluate the influence of using the surgical operating microscope (SOM) for detection of the mesiolingual (ML) canal orifice in extracted first maxillary permanent molars. One hundred and eight human first maxillary permanent molars were randomly selected and mounted onto a dental chair mannequin. Conventional access cavity was prepared and an attempt was made to locate the mesiolingual canal orifice using only a sharp explorer, a mirror and a #10 K-file. A mesiolingual canal orifice was either located or not located. If not located, the teeth were then evaluated by using a surgical operating microscope (SOM). The mesiobuccal roots of all teeth where the ML canal orifice had not been located were sectioned in an axial plane and the sections were explored with an adjunctive use of the SOM at a 25 X magnification. ML canal orifices were detected in 58 teeth using only a sharp explorer, a mirror and #10 K-file. In the remaining 50 teeth, 37 ML canal orifices were located by using the SOM and 3 ML canal orifices were located after root sectioning. In 10 teeth, the ML canal orifices were not found. The results of this study showed a high incidence of a ML canal in the mesiobuccal roots of the first maxillary molars (90.7%) and demonstrated that the adjunctive use of the SOM increased the ability of the dental clinician to locate the ML canal orifice.


Brazilian Journal of Oral Sciences | 2015

A computer evaluation of the dentin remaining after cervical preparation in curved canals: gates-glidden drills vs. orifice shaper

Tauby Coutinho Filho; Gustavo André De Deus Carneiro Vianna; Tatiana Guimarães Pinto; Eduardo Diogo Gurgel Filho; Cláudio Maniglia Ferreira


Revista Estomatológica Herediana | 2011

Efecto antimicrobiano de la terapia fotodinámica sobre Enterococcus faecalis, estudio in vitro

Emmanuel João Nogueira Leal da Silva; Wagner Pereira Coutinho Filho; Aurimar de Oliveira Andrade; Daniel Rodrigo Herrera Morante; Raphael Hirata Junior; Tauby Coutinho Filho; Renato Liess Krebs


Rev. bras. odontol | 1997

Filosofia de trabalho nas obturaçöes imediatas em dentes necrosados e com lesäo apical

Tauby Coutinho Filho; Eduardo Diogo Gurgel Filho; Flávio Diblasi


RGO - Revista Gaúcha de Odontologia, Vol. 48, N° 3, 2000 | 2000

Tratamento endodôntico em sessão única

Lúcia Chagas; Maria Guiomar Lopes; Eduardo Diogo Gurgel Filho; Tauby Coutinho Filho


Rev. bras. odontol | 1996

Fratura radicular horizontal: relato de caso

Eduardo Diogo Gurgel Filho; E. P Cavalcante; Rivail Antonio Sergio Fidel; Tauby Coutinho Filho


RGO - Revista Gaúcha de Odontologia | 2015

Endodontic treatment of a mandibular hypertaurodontic second molar

Emmanuel João Nogueira Leal da Silva; Plinio Mendes Senna; Tauby Coutinho Filho; Renato Liess Krebs


Revista brasileira de odontologia | 2012

Movimento reciprocante em Endodontia : revisão de literatura

Helene Santos Carvalho Pereira; Emmanuel João Nogueira Leal Silva; Tauby Coutinho Filho

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Gustavo de Deus

Rio de Janeiro State University

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Renato Liess Krebs

Rio de Janeiro State University

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Claudia Reis

Rio de Janeiro State University

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