Mechanical testing of four-unit implant-supported prostheses with extensive pink gingiva porcelain: the dentogingival prostheses proof of concept - Benalcazar Jalkh, Ernesto Byron; Souza Neto, Juvenal de; Bergamo, Edmara Tatiely Pedroso; Maia, Camila F.; Bonfante, Estevam Augusto (Journal of Esthetic and Restorative Dentistry, 2021)