This study intended to evaluate by clinical and imaging parameters the long-term predictability of osseointegrated implants inserted with specific simultaneous sinus lift approach in very atrophic posterior maxillas using a synthetic bioactive resorbable graft and autogenous bone graft.
A total of 160 implants were inserted in 57 maxillary sinus of 45 consecutive patients (16 men, 29 women) presenting 4 mm or less of residual subsinus bone in a simultaneous approach with the sinus lift procedure. All patients were surgically treated by the same surgeon and received the same modified technical and biomaterial protocol with a composite graft made of autogenous bone and a synthetic bioactive resorbable graft (OsteoGen, Impladent, Holliswood, NY) in a 1:1 rate. Among the inclusions criteria was a minimum loading time of 6 months to assure bone response activity. All patients were followed up for a mean period of 61.7 months (range, 20–132 months) with clinical, digital pictures, and radiographic aspects. Specific cases were followed up with computerized tomography scans (27.2%) with the consent form signed.
Survival and success rates were 98.05% and 94.85%, respectively.
Advanced posterior maxillary resorption with extensive expanded sinus (SA-4 condition) can be safely treated by a simultaneous sinus lift approach and implant insertion using the technical protocol and biomaterials studied.
*Maxillofacial Surgeon, Head of Graduate and Advanced Implant Dentistry Programs, Brazilian Institute of Implant Dentistry, Rio de Janeiro, Brazil.
†Maxillofacial Surgeon, Head of Master and Post-Doctoral Programs, São Leopoldo Mandic Dental School and Dental Research Center, São Paulo, Brazil.
Reprint requests and correspondence to: Marcelo Corrêa Manso, DDS, MScD, PhD, Largo do Machado 54, conj 907, Laranjeiras, Rio de Janeiro, Brazil, Telephone: 21-22056785/21-2205-1190, E-mail: email@example.com