OBJECTIVES: This in vitro study assessed the visualization quality of the periodontal ligament space in cone-beam computerized tomography (CBCT) compared with intraoral radiographs (CR). STUDY DESIGN: A phantom mimicking variable periodontal ligament spaces (0-0.42 mm) was radiographed using CBCT and CR. Fifteen datasets of each modality were randomly mixed and presented twice to 19 experienced examiners and once to 19 inexperienced examiners. RESULTS: Zero-millimeter gaps were recognized in 84.4% of CBCT and in 81.6% of CR images. On CBCT scans, gaps of 0.19 mm were identified with an accuracy of 93%-100% compared with 70.2%-81.7% using CR. Experienced examiners recognized gaps of >or=0.19 mm on CBCT repeatedly with nearly 100% accuracy. CONCLUSION: Compared with CR, CBCT provides better visualization of simulated periodontal ligament space in this phantom. Copyright (c) 2010 Mosby, Inc. All rights reserved.
OBJECTIVES: This in vitro study assessed the visualization quality of the periodontal ligament space in cone-beam computerized tomography (CBCT) compared with intraoral radiographs (CR). STUDY DESIGN: A phantom mimicking variable periodontal ligament spaces (0-0.42 mm) was radiographed using CBCT and CR. Fifteen datasets of each modality were randomly mixed and presented twice to 19 experienced examiners and once to 19 inexperienced examiners. RESULTS: Zero-millimeter gaps were recognized in 84.4% of CBCT and in 81.6% of CR images. On CBCT scans, gaps of 0.19 mm were identified with an accuracy of 93%-100% compared with 70.2%-81.7% using CR. Experienced examiners recognized gaps of >or=0.19 mm on CBCT repeatedly with nearly 100% accuracy. CONCLUSION: Compared with CR, CBCT provides better visualization of simulated periodontal ligament space in this phantom. Copyright (c) 2010 Mosby, Inc. All rights reserved.
Authors: J P Tchorz; P J Poxleitner; S Stampf; S B M Patzelt; D Rottke; E Hellwig; M J Altenburger Journal: Clin Oral Investig Date: 2013-07-30 Impact factor: 3.573
Authors: L Ritter; M C Elger; D Rothamel; T Fienitz; M Zinser; F Schwarz; J E Zöller Journal: Dentomaxillofac Radiol Date: 2014-05-02 Impact factor: 2.419