OBJECTIVES: The objective of this study was to determine the ability of two flat panel cone beam CT (CBCT) devices to identify demineralized bone and bone transplants in vivo and in vitro. METHODS: Datasets from patients with autologous bone grafts (n = 9, KaVo 3DeXam (KaVo, Biberach, Germany); n = 38, Accuitomo 40 (Morita, Osaka, Japan)) were retrospectively evaluated. Demineralized and non-demineralized porcine cancellous bone blocks were examined with the two CBCT devices. A SawBone skull (Pacific Research Laboratories, Vashon, WA) was used as a positioning tool for the bone blocks. Descriptive evaluation and image quality assessment were conducted on the KaVo 3DeXam data (voxel size 0.3 mm) using the OsiriX viewer as well as on the Morita Accuitomo data (voxel size 0.25 mm) using proprietary viewer software. RESULTS: Both in vivo and in vitro, the descriptive analysis of the images of the two devices showed well-visualized bone transplants with clearly defined cancellous bones and well-defined single bone trabeculae in all cross-sections. In vitro, demineralized samples showed lower radiographic opacity but no significant loss of quality compared with fresh bone (P = 0.070). Single cancellous bone trabeculae were significantly better visualized with the Morita 3D Accuitomo device than with the KaVo 3DeXam device (P = 0.038). CONCLUSION: Both the KaVo 3DeXam and Morita 3D Accuitomo devices produce good-quality images of cancellous bones in in vivo remodelling as well as after in vitro demineralization.
OBJECTIVES: The objective of this study was to determine the ability of two flat panel cone beam CT (CBCT) devices to identify demineralized bone and bone transplants in vivo and in vitro. METHODS: Datasets from patients with autologous bone grafts (n = 9, KaVo 3DeXam (KaVo, Biberach, Germany); n = 38, Accuitomo 40 (Morita, Osaka, Japan)) were retrospectively evaluated. Demineralized and non-demineralized porcine cancellous bone blocks were examined with the two CBCT devices. A SawBone skull (Pacific Research Laboratories, Vashon, WA) was used as a positioning tool for the bone blocks. Descriptive evaluation and image quality assessment were conducted on the KaVo 3DeXam data (voxel size 0.3 mm) using the OsiriX viewer as well as on the Morita Accuitomo data (voxel size 0.25 mm) using proprietary viewer software. RESULTS: Both in vivo and in vitro, the descriptive analysis of the images of the two devices showed well-visualized bone transplants with clearly defined cancellous bones and well-defined single bone trabeculae in all cross-sections. In vitro, demineralized samples showed lower radiographic opacity but no significant loss of quality compared with fresh bone (P = 0.070). Single cancellous bone trabeculae were significantly better visualized with the Morita 3D Accuitomo device than with the KaVo 3DeXam device (P = 0.038). CONCLUSION: Both the KaVo 3DeXam and Morita 3D Accuitomo devices produce good-quality images of cancellous bones in in vivo remodelling as well as after in vitro demineralization.
Authors: David Harris; Daniel Buser; Karl Dula; Kerstin Grondahl; David Haris; Reinhilde Jacobs; Ulf Lekholm; Richard Nakielny; Daniel van Steenberghe; Paul van der Stelt Journal: Clin Oral Implants Res Date: 2002-10 Impact factor: 5.977
Authors: Andreas H Mahnken; Michael Grasruck; Bernhard Schmidt; Rolf W Günther; Joachim E Wildberger Journal: Eur Radiol Date: 2007-12-04 Impact factor: 5.315
Authors: Max Heiland; Philipp Pohlenz; Marco Blessmann; Christian R Habermann; Lars Oesterhelweg; Philipp C Begemann; Christian Schmidgunst; Felix A S Blake; Klaus Püschel; Rainer Schmelzle; Dirk Schulze Journal: Oral Surg Oral Med Oral Pathol Oral Radiol Endod Date: 2007-09-27
Authors: Mehmet Ali Altay; Faisal A Quereshy; Sumit K Nijhawan; Jose F Teppa; Michael P Horan; Nelli Yıldırımyan; Dale A Baur Journal: Eur Oral Res Date: 2018-05-01