Author/Authors :
Uzun، Ismail نويسنده Department of Endodontics, Faculty of Dentistry, Ondokuz
Mayis University, Samsun, Turkey , , Gunduz، Kaan نويسنده Department of Dentomaxillofacial Radiology, Faculty of
Dentistry, Ondokuz Mayis University, Samsun, Turkey , , Celenk، Peruze نويسنده Department of Dentomaxillofacial Radiology, Faculty of
Dentistry, Ondokuz Mayis University, Samsun, Turkey , , Avsever، Hakan نويسنده Department of Dentomaxillofacial Radiology, Gulhane
Military Medical Academy (GATA), Ankara, Turkey , , Orhan، Kaan نويسنده Department of Dentomaxillofacial Radiology, Faculty of
Dentistry, Ankara University, Ankara, Turkey , , Canitezer، Gozde نويسنده Department of Dentomaxillofacial Radiology, Faculty of
Dentistry, Ondokuz Mayis University, Samsun, Turkey , , Ozmen، Bilal نويسنده Department of Pedodontics, Faculty of Dentistry, Ondokuz
Mayis University, Samsun, Turkey , , Cicek، Ersan نويسنده Department of Endodontics, Faculty of Dentistry, Ondokuz
Mayis University, Samsun, Turkey , , Egrioglu، Erol نويسنده Department of Statistics, Ondokuz Mayis University,
Samsun, Turkey ,
Abstract :
The teeth with undiagnosed vertical root fractures (VRFs) are
likely to receive endodontic treatment or retreatment, leading to
frustration and inappropriate endodontic therapies. Moreover, many cases
of VRFs cannot be diagnosed definitively until the extraction of tooth.
This study aimed to assess the use of different voxel resolutions of two
different cone beam computerized tomography (CBCT) units in the
detection VRFs in vitro. The study material comprised 74 extracted human
mandibular single rooted premolar teeth without root fractures that had
not undergone any root-canal treatment. Images were obtained by two
different CBCT units. Four image sets were obtained as follows: 1) 3D
Accuitomo 170, 4 × 4 cm field of view (FOV) (0.080 mm3); 2) 3D Accuitomo
170. 6 × 6 cm FOV (0.125 mm3); 3) NewTom 3G, 6˝ (0.16 mm3) and 4) NewTom
3G, 9˝ FOV (0.25 mm3). Kappa coefficients were calculated to assess both
intra- and inter-observer agreements for each image set. No significant
differences were found among observers or voxel sizes, with high average
Z (Az) results being reported for all groups. Both intra- and
inter-observer agreement values were relatively better for 3D Accuitomo
170 images than the images from NewTom 3G. The highest Az and kappa
values were obtained with 3D Accuitomo 170, 4 × 4 cm FOV (0.080 mm3)
images. No significant differences were found among observers or voxel
sizes, with high Az results reported for all groups.
