Bacterial culture and DNA checkerboard for the detection of internal contamination in dental implants - Barbosa, Rodrigo Edson Santos; Nascimento, Cássio do; Issa, João Paulo Mardegan; Watanabe, Evandro; Ito, Izabel Yoko; Albuquerque Júnior, Rubens Ferreira de (Journal of Prosthodontics, 2009)