Sealing capability and SEM observation of the implant-abutment interface - Lorenzoni, Fabio C.; Coelho, Paulo G.; Bonfante, Gerson; Carvalho, Ricardo Marins de; Silva, Nelson R. F. A.; Suzuki, Marcelo; Silva, Thelma Lopes; Bonfante, Estevam A. (International Journal of Dentistry, 2011)