Photoelastic stress distribution produced by different retention systems for a single-implant mandibular overdenture - Nascimento, João Francisco Machado; Aguiar-Júnior, Fábio Afrânio; Nogueira, Túlio Eduardo; Rodrigues, Renata Cristina Silveira; Leles, Cláudio Rodrigues (Journal of Prosthodontics, 2015)