Análise da qualidade de imagem do canal incisivo e forame incisivo por meio da utilização de diferentes protocolos de aquisição de imagens de tomografia computadorizada de feixe cônico

Abstract

Imaging exams are widely used by dentists as a complementary exam to the clinical exam, thus conventional radiographs can be implemented at a relatively low cost and with a two-dimensional image nature being used for the diagnosis of caries, fractures and periodontal diseases in the first place. Currently, however, two-dimensional radiographs have some limitations, mainly due to the overlapping of structures, requiring a more reliable examination to assess fractures, as well as in implant dentistry. Therefore, cone beam Computed Tomography is a complementary exam with high accuracy, but it must be requested following the guidelines of the ALARA principle "As low as reasonably achievable". Therefore, the present study aimed to identify the best image quality protocol using the lowest possible dose, for the visualization of the incisor canal and incisive foramen, using five different fields of view, field of view (FOVs) and four voxels in one protocol and three in the others to obtain the selection of the best protocols for visualization. To this end, 32 images of the head of a human cadaver, obtained at the Department of Anatomy, University of Caxias do Sul, were evaluated. All CT scans were performed at the Dental Radiology Clinic of the University of Caxias do Sul. of conical beam, the best protocols of the OP300 maxio device were selected: FOV 5x5, V3 with filter and V4 with and without filter; FOV 6x8, V2 with filter and V3 with and without filter; FOV 8x8, V2 with filter and V3 with and without filter, FOV 8x15, V2 with filter and V3 with and without filter and finally, FOV 13x15 mostly presented unsatisfactory image quality. [resumo fornecido pelo autor]