In vivo effectiveness of silicone gel sheets as barriers at the inner microgap between a prosthetic abutment and an external-hexagon implant platform - Pimentel, Angélica Castro; Manzi, Marcello Roberto; Sartori, Saul Galileu; Homem, Maria da Graça Naclério; Sendyk, Wilson Roberto (The International Journal of Oral & Maxillofacial Implants, 2014)