Vollmer R, Vollmer M, Valentin R, Heinemann F
Practical Procedures & Aesthetic Dentistry 2002 May, 14(4): 307-311
Over the past decade, sinus floor augmentation has become a successful method for patients suffering from severe atrophy of the posterior maxilla. Sinus lift grafting can be accomplished either with a single- or two-stage procedure. The use of a two-step procedure requires more than 1.5 years until definitive prosthetic rehabilitation can be achieved. The SA-5 protocol facilitates restoration of SA-2, SA-3 and SA-4 cases in a single-stage surgical procedure using a conventional osteosynthesis bar. Since the augmented material and the implants settle at the same time, the healing period can be reduced by approximately 4 to 6 months. Splinting ensures fixation of the augmented material and implants at the desired site, ant the patient is spared the inconvenience of a second surgical invasion. The authors conclude that long-term investigations should be performed to demonstrate these benefits as compared to standard second-stage implant placement and immediate loading procedures.