Abstract
Twenty male New Zealand rabbits (3.5-4.0 kg) will be used to raise the maxillary sinus and divided into 2 groups composed of 10 animals each, according to the experimental times: 2 and 10 weeks. After bilateral sinus membrane elevation, a similar amount (50 mg) of HA / bTCP (60% hydroxyapatite, 40% beta-tricalcium phosphate, GUIDOR calc-oss CRYSTAL +, Sunstar, Etoy, Switzerland), with gra…