title: [Traction resistance of cast metal posts with and without retention, cemented with zinc phosphate cement in smooth and rough canals].
abstract: The purpose of this research was to test the traction resistance of cast posts and cores with and without roughness cemented with zinc phosphate cement in cuspids roots, with smooth and roughness canals walls. From the results of the tests and statistical analysis there was significant difference between roughness posts cemented in root canals with roughness walls and smooth posts cemented in smooth root canals. It was also analyzed, the retention of cast crows cemented on roughness posts and canals and it was concluded that posts are responsible for crows retention, when the cores were done at the correct way.
authors: Departamento de Prótese Dental Universidade de São Paulo.
authors: R C
authors: RC
authors: Di Creddo
authors: A L
authors: AL
authors: do Valle
authors: W C
authors: WC
authors: Bonachela
authors: C dos R
authors: Cdos R
authors: de Araujo
authors: R F
authors: RF
authors: Pandolfi
authors: L F
authors: LF
authors: Pegoraro
mesh_terms: D002484:Cementation; D003481:Cuspid; D003799:Dental Stress Analysis; D006801:Humans; D011176:Post and Core Technique; D013499:Surface Properties; D013718:Tensile Strength; D015036:Zinc Phosphate Cement
chemical_list: D015036:Zinc Phosphate Cement
vernacular_title: Avaliação da resistência à remoção por tração de núcleos metálicos fundidos com e sem retenção, fixados com cimento de fosfato de zinco em condutos lisos e com retenções.