Abstract
Background: The preoperative evaluation of bone quality and stability at the site of a dental implant is importantfor the long-term prognosis of the implant. Objective: We evaluated the density and its distribution of cancellous bone in the alveolar bone between aTaiwanese cohort and a U.S. cohort. Methods: A retrospective analysis using cone-beam computed tomography (CBCT) images was conducted on1211 Taiwanese and 154 U.S. adults who were evaluated for dental implants. Reconstructed representations ofthe anterior, premolar, and molar maxillary regions, and of the anterior, premolar, and molar mandibular regionswere evaluated in consideration of age, gender and ethnicity. Results: The mean cancellous bone density was significantly higher at mandibular as compared to maxillary sites(all p ? 0.001). In Taiwanese more than 55 years old, men had higher cancellous bone densities than that inwomen at all sites (except mandible anterior site) (all p Conclusion: CBCT can be used to evaluate alveolar cancellous bone density to predict primary stability priorto implantation. Keywords: Alveolar, bone, CBCT, density
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