Influence of Number of Implants and Connection Systems on Stress Behaviour of Mandibular Implant-retained Overdentures: Photoelastic and Strain Gauge Analysis Journal title: Journal of Clinical and Diagnostic Research Authors: Marcio Campaner, Anna Clara Mendes Borges, Danielle de Almeida Camargo, Leticia Cerri Mazza, Sandro... Subject(s):