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Volume 34 , Issue 4
July/August 2019
Pages 920–926

Volumetric Analysis of Allogeneic and Xenogeneic Bone Substitutes Used in Maxillary Sinus Augmentations Utilizing Cone Beam Computed Tomography: A Prospective Randomized Pilot Study

Daliah Salem, DMD, MMSc/Abdulmonem Alshihri, BDS, DMSc/Emilio Arguello, DMD, MS/Ronald E. Jung, DMD, PhD/Hamed A. Mohmed/Bernard Friedland, BChD, MSc, JD

PMID: 30779821
DOI: 10.11607/jomi.7318

Purpose: The purpose of this prospective, randomized, clinical pilot study was to compare the three-dimensional changes of grafted maxillary sinuses when deproteinized bovine bone (DBB) or cortical mineralized allogeneic bone (MAB) was used. Materials and Methods: Seventeen patients were randomly assigned to receive either DBB or MAB for lateral-approach maxillary sinus augmentation. Cone beam computed tomography (CBCT) scans were performed preoperatively (T0), immediately after (T1), and at approximately 6 months postoperatively (T2). Three-dimensional analysis of the radiographic volumetric changes was performed for DBB and MAB by measuring the difference in unoccupied sinus volumes at T1 and T2. Results: In the DBB group, a statistically significant increase in unoccupied sinus volume was found at T2 when compared to T1 (P = .001), representing a mean resorption rate of 23.8% ± 15.9%. Similarly in the MAB group, a statistically significant increase in unoccupied sinus volume was found at T2 when compared to T1 (P = .007); the mean resorption rate in the MAB group was 19.5% ± 10.1%. There was no statistically significant difference between the contraction of DBB (23.8%) and MAB (19.5%) (P = .52). Conclusion: Both DBB and MAB showed sufficient volume stability at T2 (mean: 6.3 ± 1.6 months) postoperatively for 10- to 13-mm–implant placement without the need for additional grafting.

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