Correction of a mucogingival defect using a implant-reatined postoperative stent in a severely resorbed mandible: case report - Melo, Luiz Gustavo Nascimento de; Ciporkin, Frederico; Maia Neto, José Sérgio; Almeida, Ana Lúcia Pompéia Fraga de; Lopes, José Fernando Scarelli; Figueiredo, Caio Márcio (The International Journal of Periodontics and Restorative Dentistry, 2008)