Comparative localized linear accuracy of small-field cone-beam CT and multislice CT for alveolar bone measurements

Use of cone beam computed tomography in periodontology

“…Streak artifacts appear as linear hyperdensities that radiate from a metallic object and may extend to the width of the field, affecting visualization of areas even on the opposite side of an image ( Figure 6). Beamhardening artifacts, which appear as dark bands adjacent to high-density structures, may mimic disease [8,9,18] .…”

“…CBCT measurements were found to be equivalent to direct measurements and dehiscences were diagnosed with higher accuracy than fenestrations [31] . CBCT and multi-slice CT (MSCT) images were used for alveolar bone width measurements [18] . There was no significance difference between the measurements obtained by CBCT and MSCT or direct measurements and radiographic methods [18] .…”

Can posterior teeth of patients be translated buccally, and does bone form on the buccal surface in response?

“…While CBCT imaging is reliable for evaluating dentoalveolar changes, 9,22 there are limitations due to voxel size and the partial volume averaging effect. 22,23 When a voxel lies on two objects of different densities, the resulting voxel will reflect their average density, rather than the density of either object.…”

“…The maxillary first premolar was centered in the field of view (3.75 3 5.00 cm) to maximize the accuracy of reconstructing the volumetric data. 9 Settings for the CBCT images were 70 kV, with 10mA, at 10.8 seconds.…”

Morfologia do osso periodontal na região de caninos superiores movimentados para a área de fissura alveolar enxertada: avaliação por meio da Tomografia Computadorizada Cone-Beam

“…(GRACCO et al, 2009) Em seguida, a partir de uma imagem axial na altura da junção cementoesmalte dos dentes anteriores, foram realizados cortes individuais no sentido mésio-distal a fim de se obter cortes parassagitais de cada um dos dentes a ser avaliado. (GARIB et al, 2010a;GARIB et al, 2006;GARIB et al, 2010b;GARIB et al, 2012;GARIB et al, 2010c;LOUBELE et al, 2008;MOL, BALASUNDARAM, 2008;SUN et al, 2011;YATABE, 2010) Os caninos do lado da fissura apresentaram um valor médio de 0,20mm para a ETOV e 1,39mm para a ETOL, enquanto que os caninos do lado sem fissura apresentaram 0,45mm para a ETOV e 1,44mm para a ETOL. Os incisivos laterais apresentaram uma média de 0,53mm para a ETOV e 1,48mm para a ETOL (Tab.…”