Comparação da Infiltração Apical entre a Desobturação Imediata do Canal Radicular e a Desobturação após 8 Dias para a Preparação do Espaço para o Espigão

摘要: Abstract Introduction The success of endodontically treated teeth may be influenced by the ability to maintain integrity apical seal. Objective To compare leakage in where post space preparation was made immediately after root filling, with delayed (8 days after). Materials and Methods A total 40 recently extracted human single canal, were prepared using step-back technique. randomly divided into four groups: 17 groups I II 3 each III IV (controls). In filled gutta- -percha zinc oxide-eugenol sealer lateral condensation group at time obturation. 8 filling. ProTaper Universal retreatment files used for preparation. covered fingernail polish except last 2mm. not obturated (positive control). all over surface (negative methylene-blue dye method measure leakage. Results Teeth whose had a mean distance 1,23 mm (group I), whereas that been 2,36 mm II), being differences statistically significant (p  Conclusions timing conditionate