Fabio Rossi1,2, Niklaus P Lang3,4, Emanuele Ricci1, Lorenzo Ferraioli1, Claudio Marchetti5, Daniele Botticelli2,6. 1. Unit Scholar, Department of Biomedical and Neuromotorial Science, University of Bologna, Bologna, Italy. 2. ARDEC Academy, Ariminum Odontologica, Rimini, Italy. 3. Center for Dental Medicine, University of Zurich, Zurich, Switzerland. 4. University of Bern, Bern, Switzerland. 5. Department of Biomedical and Neuromotorial Science, University of Bologna, Bologna, Italy. 6. POI - Programa Odontológico Internacional, Cartagena de Indias, Colombia.
Abstract
AIM: To evaluate the clinical and radiographic outcomes and the survival rates of fiber-reinforced composite resin-bonded fixed prostheses (FRCRBFDPs) placed in the posterior area supported by two short (6 mm) implants. MATERIALS AND METHODS: Twenty consecutive patients received 40 SLActive 6-mm-long implants with a diameter of 4.1 mm (n = 29) or 4.8 mm (n = 11). Insertion torques and RFA (Resonance Frequency Analysis) were measured at implant installation. The prosthetic rehabilitation was performed after 8 weeks from insertion with a screw-retained two- or three-unit fixed dental prosthesis fabricated of FRCRBFDPs. Implant survival rates and marginal bone levels were evaluated at various time intervals until 5 years after loading. RESULTS: Two of 20 patients lost four implants supporting two FRCRBFDPs between the second and the third year of follow-up (cumulative survival rate: 90% after 5 years). Four patients suffered a fracture of the prosthetic reconstruction, and the success rate of the rehabilitation was 70% after 5 years. A mean marginal bone loss of 0.30 ± 0.34 mm was found after 5 years of function at the remaining implants. CONCLUSION: The survival of short implants was 90% owing to two bridges losses in the maxilla. However, the success rate of FRCRBFDPs over 5 years was only at 70%.
AIM: To evaluate the clinical and radiographic outcomes and the survival rates of fiber-reinforced composite resin-bonded fixed prostheses (FRCRBFDPs) placed in the posterior area supported by two short (6 mm) implants. MATERIALS AND METHODS: Twenty consecutive patients received 40 SLActive 6-mm-long implants with a diameter of 4.1 mm (n = 29) or 4.8 mm (n = 11). Insertion torques and RFA (Resonance Frequency Analysis) were measured at implant installation. The prosthetic rehabilitation was performed after 8 weeks from insertion with a screw-retained two- or three-unit fixed dental prosthesis fabricated of FRCRBFDPs. Implant survival rates and marginal bone levels were evaluated at various time intervals until 5 years after loading. RESULTS: Two of 20 patients lost four implants supporting two FRCRBFDPs between the second and the third year of follow-up (cumulative survival rate: 90% after 5 years). Four patients suffered a fracture of the prosthetic reconstruction, and the success rate of the rehabilitation was 70% after 5 years. A mean marginal bone loss of 0.30 ± 0.34 mm was found after 5 years of function at the remaining implants. CONCLUSION: The survival of short implants was 90% owing to two bridges losses in the maxilla. However, the success rate of FRCRBFDPs over 5 years was only at 70%.
Authors: Vittorio Moraschini; Carlos Fernando de Almeida Barros Mourão; Pietro Montemezzi; Ingrid Chaves Cavalcante Kischinhevsky; Daniel Costa Ferreira de Almeida; Kayvon Javid; Jamil Awad Shibli; José Mauro Granjeiro; Monica Diuana Calasans-Maia Journal: Healthcare (Basel) Date: 2021-03-12