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OBJECTIVES To determine the optimal kVp setting for a particular cone beam CT (CBCT) device by maximizing technical image quality at a fixed radiation dose. METHODS The 3D Accuitomo 170 (J. Morita Mfg. Corp., Kyoto, Japan) CBCT was used. The radiation dose as a function of kVp was measured in a cylindrical polymethyl methacrylate (PMMA) phantom using a(More)
BACKGROUND Peri-implant soft tissue recession is a major esthetic concern for the anterior implants. The aim of this study was to determine the factors that affected the facial marginal mucosal level and papilla level around single-tooth implants in the anterior maxilla. METHODS Forty single-tooth implants in the anterior maxilla were studied. Variables(More)
PURPOSE To develop a fully automated, accurate and robust segmentation technique for dental implants on cone-beam CT (CBCT) images. METHODS A head-size cylindrical polymethyl methacrylate phantom was used, containing titanium rods of 5.15 mm diameter. The phantom was scanned on 17 CBCT devices, using a total of 39 exposure protocols. Images were manually(More)
BACKGROUND Information regarding linear accuracy is necessary for efficient treatment evaluation, especially for maxillofacial reconstruction or implants. PURPOSE To investigate the accuracy of linear measurements from multiple cone beam computed tomography (CBCT) devices. MATERIALS AND METHODS A RANDO® phantom was scanned with eight CBCT scanners (11(More)
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