Sinus floor augmentation and support of the Schneiderian membrane, periodontal bone defects (1-3 wall defects) and furcation defects (class I and II), surgical bone defects and bone wall defects, extraction sockets after tooth extractions, maxillary ridge reconstruction for prosthetic treatment. After apicectomy, cystectomy, resection of retained teeth and resection of other bone lesions. Immediate or delayed augmentation around implants in extraction sockets, dehiscence and fenestration defects, maxillary ridge augmentation.