Comparison between two antimicrobial protocols with or without guided bone regeneration in the treatment of peri-implantitis: a histomorphometric study in dogs - Ramos, Umberto Demoner; Suaid, Flávia Adelino; Wikesjö, Ulf M. E.; Susin, Cristiano; Taba Júnior, Mário; Novaes Júnior, Arthur Belém (Clinical Oral Implants Research, 2017)