Success of Brånemark system dental implants and implant-supported prostheses: A 1 year retrospective clinical and radiological study of 232 implants of 60 patients

Publicado em 20-03-2013

Claudio M Pereira, Amin MM Sulaimen, Rafael A Decurcio, Mariana MF Chaer, Sebastião A Ribeiro Filho
Brånemark system, follow-up, survival rate


Background: The successful replacement of missing tooth by titanium implants duly integrated into
the tissues is a major breakthrough in Dentistry. From the moment that implant systems with rigorous
scientific methodology were introduced, eliminating the pre-existent empiricism, long-term studies of
effectiveness have been presented.
Objective: The aim of this study was to evaluate the success rates of osseointegrated implants and
implant-supported prostheses performed by students of implant dentistry at the Brazilian Dental
Association – Goiás Section – between 2006 and 2007.
Materials and Methods: Sixty patients who received 232 implants were evaluated. These patients
were followed up by clinical and radiographic examination to evaluate the survival rate of implants and
prostheses. Also, the patients answered a questionnaire regarding their satisfaction with the treatment.
Results: Clinical signs and radiographic findings showed the following: No implant had mobility,
one patient reported pain in the region of one implant, eight implants had exposure of the head, one
patient complained of paresthesia mandibular, five implants had exudate, one implant had exposure
of the threads, and no implant showed radiolucency in radiographic image. 57.9% of patients who
answered the questionnaire considered the treatment “excellent.” The complications of prostheses
showed the occurrence of fracture of porcelain in two prostheses, fracture of the resin in one prosthesis,
loosening of one screw implant, abutment misfit in three prostheses, two abutments released from the
crown, and and there was oral exposure of the abutments teeth in 2 prostheses. Of the 232 implants
evaluated in 60 patients, 4 implants were lost and removed, corresponding to a survival rate of 98.28%.
Conclusions: The use of Brånemark system implants seems to be a successful alternative in the
treatment of various types of edentulism.