Effect of over- and underexposure on the sharpness of the image of a marker in computer-assisted dental implant tomography.
In dental implant tomography, a clinician typically makes several tomograms of cross-sectional and sagittal slices at and near the intended implantation site. The slice with the sharpest image of the metal marker is deemed to be the correct implantation site; the other slices with blurred images of the marker are those made either mesially or distally to the marker. However, if the images were over- or underexposed, the marker will be blurred on all the slices and a dentist may be wrongly accused of having placed a dental implant at an improper site with possible medico-legal ramifications.
Thunthy
K H
KH
Department of Oral Diagnosis, Medicine and Radiology, Louisiana State University School of Dentistry, New Orleans, Louisiana 70119-2799, USA. kthunt@lsuhsc.edu
D003758:Dental Implantation, Endosseous; D005374:Filtration; D006801:Humans; D007575:Jaw, Edentulous / Q000000981:diagnostic imaging*; D008334:Mandible / Q000000981:diagnostic imaging; D010347:Patient Care Planning; D011829:Radiation Dosage; D019252:Radiography, Dental, Digital; D015203:Reproducibility of Results; D013679:Technology, Radiologic; D014057:Tomography, X-Ray Computed; D014965:X-Rays