Dentomaxillofacial Radiology
Vol.48, Issue6, Num.20180327
Аннотация:
Objectives: To compare the accuracy of cone-beam CT ex vivo and in vivo for the detection of artificially created large and small vertical root fractures in extracted teeth restored with post-core. Methods: Individual metal cast post-cores were fixed in the root canals of 50 extracted singlerooted human teeth. In 30 teeth fractures were created by tapping posts with a hammer. The teeth were sterilised in autoclave and embedded into bite-plates made of silicon impression material. Cone-beam CT scanning was performed ex vivo and in vivo . For the in vivo scanning, teeth in sterile plastic bags were inserted into the mouths of volunteers. Then the teeth were sectioned with low-speed saw and the widths of the VRFs were measured microscopically. The teeth were distributed into 2 groups in accordance with the measured fractures' widths: large (wider than 180-250 μm) and small (80-150 μm). Five observers assessed the presence of vertical root fractures on axial CBCT slices. Sensitivity, speci
Ключевые слова:
Accuracy; Cone-beam CT; Sensitivity; Specificity; Vertical root fracture
cone beam computed tomography; diagnostic imaging; human; reproducibility; sensitivity and specificity; tooth fracture; tooth root; Cone-Beam Computed Tomography; Humans; Reproducibility of Results; Sensitivity and Specificity; Tooth Fractures; Tooth Root
Byakova S. F. Svetlana Fedorovna 1975-
Novozhilova N. E. Nina Evgenyevna 1985-
Makeeva I. M. Irina Mikhaylovna 1963-
Grachev V. I.
Kasatkina I. V.
Бякова С. Ф. Светлана Федоровна 1975-
Новожилова Н. Е. Нина Евгеньевна 1985-
Макеева И. М. Ирина Михайловна 1963-
Грачев В. И.
Касаткина И. В.
The detection of vertical root fractures in post-core restored teeth ith cone-beam CT: In vivo and ex vivo
Текст визуальный непосредственный
Dentomaxillofacial Radiology
British Institute of Radiology
Vol.48, Issue6 Num.20180327
2019
Статья
Accuracy Cone-beam CT Sensitivity Specificity Vertical root fracture
cone beam computed tomography diagnostic imaging human reproducibility sensitivity and specificity tooth fracture tooth root Cone-Beam Computed Tomography Humans Reproducibility of Results Sensitivity and Specificity Tooth Fractures Tooth Root
Objectives: To compare the accuracy of cone-beam CT ex vivo and in vivo for the detection of artificially created large and small vertical root fractures in extracted teeth restored with post-core. Methods: Individual metal cast post-cores were fixed in the root canals of 50 extracted singlerooted human teeth. In 30 teeth fractures were created by tapping posts with a hammer. The teeth were sterilised in autoclave and embedded into bite-plates made of silicon impression material. Cone-beam CT scanning was performed ex vivo and in vivo . For the in vivo scanning, teeth in sterile plastic bags were inserted into the mouths of volunteers. Then the teeth were sectioned with low-speed saw and the widths of the VRFs were measured microscopically. The teeth were distributed into 2 groups in accordance with the measured fractures' widths: large (wider than 180-250 μm) and small (80-150 μm). Five observers assessed the presence of vertical root fractures on axial CBCT slices. Sensitivity, speci