Carlo Maiorana1, Pier Paolo Poli2, Anna Mascellaro3, Susanna Ferrario4, Mario Beretta5. 1. Implant Center for Edentulism and Jawbone Atrophies, Maxillofacial Surgery and Odontostomatology Unit, Fondazione IRCCS Cà Granda Maggiore Policlinico Hospital, University of Milan, Via della Commenda 10, 20122 Milan, Italy. Electronic address: carlo.maiorana@unimi.it. 2. Implant Center for Edentulism and Jawbone Atrophies, Maxillofacial Surgery and Odontostomatology Unit, Fondazione IRCCS Cà Granda Maggiore Policlinico Hospital, University of Milan, Via della Commenda 10, 20122 Milan, Italy. Electronic address: pierpaolo_poli@fastwebnet.it. 3. Implant Center for Edentulism and Jawbone Atrophies, Maxillofacial Surgery and Odontostomatology Unit, Fondazione IRCCS Cà Granda Maggiore Policlinico Hospital, University of Milan, Via della Commenda 10, 20122 Milan, Italy. Electronic address: anna.mascellaro@gmail.com. 4. School of Dentistry, Department of Biomedical, Surgical, and Dental Sciences, University of Milan, Via della Commenda 10, 20122, Milan, Italy. Electronic address: ferrariosusanna@gmail.com. 5. Implant Center for Edentulism and Jawbone Atrophies, Maxillofacial Surgery and Odontostomatology Unit, Fondazione IRCCS Cà Granda Maggiore Policlinico Hospital, University of Milan, Via della Commenda 10, 20122 Milan, Italy. Electronic address: berets@hotmail.com.
Abstract
PURPOSE: To evaluate the long-term outcome of dental implants placed with a staged procedure in resorbed alveolar ridges reconstructed with iliac crest autogenous onlay grafts. MATERIALS AND METHODS: All consecutive patients treated with iliac crest onlay bone grafts and dental implants were retrospectively evaluated. During the appointment, clinical and radiological examinations were conducted to assess implant survival. A survived implant was defined as an implant still stable and in function at the follow-up visit. Implant survival was estimated at the implant level using Kaplan-Meier analyses. The cumulative survival rate was estimated using a life-table analysis. Subgroup analyses were performed for age, position, and type of retention using the log-rank test. A p-value of <0.05 was considered statistically significant. RESULTS: The cohort consisted of 21 female subjects receiving a total of 140 rough-surface titanium implants. Of them, 128 survived and 12 failed, yielding a cumulative survival rate of 91.1% over a median survival time of 312 months. Implants supporting cement-retained prostheses exhibithed lower survival rate compared to screw-retained restorations (p = 0.001). CONCLUSION: Implants placed in bone augmented with iliac crest onlay grafts showed high long-term survival rates. Cement-retained restorations were more prone to develop implant failures.
PURPOSE: To evaluate the long-term outcome of dental implants placed with a staged procedure in resorbed alveolar ridges reconstructed with iliac crest autogenous onlay grafts. MATERIALS AND METHODS: All consecutive patients treated with iliac crest onlay bone grafts and dental implants were retrospectively evaluated. During the appointment, clinical and radiological examinations were conducted to assess implant survival. A survived implant was defined as an implant still stable and in function at the follow-up visit. Implant survival was estimated at the implant level using Kaplan-Meier analyses. The cumulative survival rate was estimated using a life-table analysis. Subgroup analyses were performed for age, position, and type of retention using the log-rank test. A p-value of <0.05 was considered statistically significant. RESULTS: The cohort consisted of 21 female subjects receiving a total of 140 rough-surface titanium implants. Of them, 128 survived and 12 failed, yielding a cumulative survival rate of 91.1% over a median survival time of 312 months. Implants supporting cement-retained prostheses exhibithed lower survival rate compared to screw-retained restorations (p = 0.001). CONCLUSION: Implants placed in bone augmented with iliac crest onlay grafts showed high long-term survival rates. Cement-retained restorations were more prone to develop implant failures.
Authors: Carlo Maiorana; Mattia Manfredini; Mario Beretta; Fabrizio Signorino; Andrea Bovio; Pier Paolo Poli Journal: Materials (Basel) Date: 2020-05-22 Impact factor: 3.623
Authors: Florian Beck; Georg Watzak; Stefan Lettner; André Gahleitner; Reinhard Gruber; Gabriella Dvorak; Christian Ulm Journal: J Clin Med Date: 2022-03-02 Impact factor: 4.241
Authors: Yeon Jung Kim; Carlos Eduardo Takeshi Saiki; Karoline Silva; Carlos Kiyoshi Moreira Massuda; Ana Paula de Souza Faloni; Paulo Henrique Braz-Silva; Debora Pallos; Wilson Roberto Sendyk Journal: Int J Dent Date: 2020-02-19