Fig. 1From: Evaluation of maxillary sinus floor augmentation with the crestal approach and beta-tricalcium phosphate: a cone-beam computed tomography 3- to 9-year follow-upTreatment protocol for the present study. CBCT was performed before surgery, immediately after surgery, and at follow-up (≥ 3 years). CBCT, cone-beam computed tomographyBack to article page