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Comparison of 2D OPG image versus orthopantomogram from 3D CBCT from the forensic point of view

H. Eliasova, T. Dostalova, A. Prochazka, E. Sediva, M. Horacek, P. Urbanova, P. Hlinakova

. 2021 ; 48 (-) : 101802. [pub] 20201016

Jazyk angličtina Země Irsko

Typ dokumentu srovnávací studie, časopisecké články

Perzistentní odkaz   https://www.medvik.cz/link/bmc21019351

Forensic dental identification has employed traditionally 2D digital radiological imaging techniques. More recently, 3D cone beam computer tomography (CBCT) data, widely applied in clinical dentistry, have been gradually used. The purpose of this study was to compare the precision and quality of 2D digital orthopantomogram (OPG) and 2D OPG images generated from cone beam computed tomography (CBCT). The study sample consisted of 50 patients with archived conventional 2D OPG and 3D CBCT images. Patients signed an informed consent form to take part in our study. Measurements of the mandible, teeth and dental restorations were taken by two observers on calibrated 2D OPG and 3D CBCT-to-OPG images using measurement functionalities of DOPLHIN software. Acquired dimensions were compared side by side and images of fillings were superimposed. For better visual comparison and more efficient image registration, the methods of spline interpolation were used. The pairs of absolute measurements obtained from conventional OPG and CBCT-to-OPG-converted images were highly correlated (p < 0.05). However, larger, and horizontally measured distances were revealed to be more affected than shorter vertically taken measurements. In relative terms, CBCT-generated width/length indices of the canines and the first molars ranged from 84% to 99.8% of those acquired from traditional OPGs. In addition, corresponding points on the teeth and fillings were compared side by side and in superimposition. The average coincidence of images was 6.1%. The results revealed that for selected metric variables 2D OPGs and 3D CBCT-generated OPGs were complementary and could be used for forensic comparisons.

Citace poskytuje Crossref.org

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$a Comparison of 2D OPG image versus orthopantomogram from 3D CBCT from the forensic point of view / $c H. Eliasova, T. Dostalova, A. Prochazka, E. Sediva, M. Horacek, P. Urbanova, P. Hlinakova
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$a Forensic dental identification has employed traditionally 2D digital radiological imaging techniques. More recently, 3D cone beam computer tomography (CBCT) data, widely applied in clinical dentistry, have been gradually used. The purpose of this study was to compare the precision and quality of 2D digital orthopantomogram (OPG) and 2D OPG images generated from cone beam computed tomography (CBCT). The study sample consisted of 50 patients with archived conventional 2D OPG and 3D CBCT images. Patients signed an informed consent form to take part in our study. Measurements of the mandible, teeth and dental restorations were taken by two observers on calibrated 2D OPG and 3D CBCT-to-OPG images using measurement functionalities of DOPLHIN software. Acquired dimensions were compared side by side and images of fillings were superimposed. For better visual comparison and more efficient image registration, the methods of spline interpolation were used. The pairs of absolute measurements obtained from conventional OPG and CBCT-to-OPG-converted images were highly correlated (p < 0.05). However, larger, and horizontally measured distances were revealed to be more affected than shorter vertically taken measurements. In relative terms, CBCT-generated width/length indices of the canines and the first molars ranged from 84% to 99.8% of those acquired from traditional OPGs. In addition, corresponding points on the teeth and fillings were compared side by side and in superimposition. The average coincidence of images was 6.1%. The results revealed that for selected metric variables 2D OPGs and 3D CBCT-generated OPGs were complementary and could be used for forensic comparisons.
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$a Dostalova, Tatjana $u Department of Stomatology, Charles University, 2nd Medical Faculty and Motol University Hospital, V Uvalu 84, 150 06 Prague, Czech Republic. Electronic address: tatjana.dostalova@fnmotol.cz
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$a Prochazka, Ales $u University of Chemistry and Technology Prague, Department of Computing and Control Engineering, Technicka 5, 166 28 Prague 6, Czech Republic. Electronic address: A.Prochazka@ieee.org
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$a Sediva, Eliska $u Department of Stomatology, Charles University, 2nd Medical Faculty and Motol University Hospital, V Uvalu 84, 150 06 Prague, Czech Republic. Electronic address: eliska.sediva@fnmotol.cz
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$a Horacek, Martin $u Department of Stomatology, Charles University, 2nd Medical Faculty and Motol University Hospital, V Uvalu 84, 150 06 Prague, Czech Republic. Electronic address: martin.horacek@fnmotol.cz
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$a Urbanova, Petra $u Masaryk University, Faculty of Science, Department of Anthropology, Kotlarska 2, 611 37 Brno, Czech Republic. Electronic address: urbanova@sci.muni.cz
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$a Hlinakova, Petra $u Department of Stomatology, Charles University, 2nd Medical Faculty and Motol University Hospital, V Uvalu 84, 150 06 Prague, Czech Republic. Electronic address: petra.hlinakova@fnmotol.cz
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