title: Three-Dimensional Assessment of Volumetric Changes in Sinuses Augmented with Two Different Bone Substitutes.
abstract: Introduction. The bone volume of the posterior maxilla may not be appropriate for implant placement, due to factors such as pneumatized maxillary sinus. The purpose of this study was to evaluate the percentage of graft volume reduction following sinus floor elevation (SFE), with either slow resorbable bone substitute only or a composite of slow and fast resorbable bone substitutes, using cone beam computed tomography (CBCT). Materials and Methods. In this retrospective study, CBCT scans of SFE procedures were evaluated to determine the volume of grafted sinus with either deproteinized bovine bone (DBB) or a 2 : 1 mixture of biphasic calcium sulfate (CS) and DBB, as a composite. The volumetric changes of sinus augmentations were measured 2 weeks (V-I) and 6 months (V-II) after operation. Results. Thirty-three patients were included in this study. The average percentage volume reduction was 9.39 ± 3.01% and 17.65 ± 4.15% for DBB and composite grafts, respectively. A significant graft volume reduction was observed between V-I and V-II for both groups (p < 0.01). The DBB group exhibited significantly less volume reduction than the composite group (p < 0.01). Conclusions. Augmented sinus volume may change before implant placement. DBB offers greater volume stability during healing than composite grafts.
authors: Department of Oral Implantology, Istanbul University Faculty of Dentistry, Istanbul, Turkey.
authors: B Alper
authors: 0000-0002-7139-3572
authors: BA
authors: Gultekin
authors: Department of Oral and Maxillofacial Radiology, Marmara University Faculty of Dentistry, Istanbul, Turkey.
authors: Oguz
authors: 0000-0003-4193-2368
authors: O
authors: Borahan
authors: Department of Periodontology, Bezmialem Vakif University Faculty of Dentistry, Istanbul, Turkey.
authors: Ali
authors: 0000-0001-7891-5110
authors: A
authors: Sirali
authors: Department of Oral Implantology, Istanbul University Faculty of Dentistry, Istanbul, Turkey.
authors: Z Cuneyt
authors: ZC
authors: Karabuda
authors: Department of Oral Rehabilitation, Maurice and Gabriela Goldschleger School of Dental Medicine, Tel-Aviv University, Tel Aviv-Yafo, Israel.
authors: Eitan
authors: 0000-0002-1661-7529
authors: E
authors: Mijiritsky
mesh_terms: D020341:Absorbable Implants; D018786:Bone Substitutes / Q000627:therapeutic use*; D005260:Female; D006801:Humans; D021621:Imaging, Three-Dimensional / Q000379:methods*; D008297:Male; D008443:Maxillary Sinus / Q000000981:diagnostic imaging* / Q000601:surgery*; D009929:Organ Size; D012189:Retrospective Studies; D059546:Sinus Floor Augmentation / Q000379:methods*; D014057:Tomography, X-Ray Computed / Q000379:methods*; D016896:Treatment Outcome
chemical_list: D018786:Bone Substitutes