South Carolina Dental Association Radiation Safety Practice Test

Digital intraoral radiography lowers patient radiation dose because the image receptors are much more efficient at capturing X-ray energy than traditional film. Modern digital sensors deliver a usable image at a much lower exposure, thanks to higher sensitivity and better signal-to-noise characteristics. That means you can achieve a diagnostic image with less radiation. Another benefit is the ability to adjust and optimize the image after capture. Digital systems allow software enhancements that improve contrast and visibility of anatomy without needing to re-expose the patient. The wide dynamic range of digital detectors also reduces the likelihood of needing retakes due to exposure errors, further cutting the patient’s overall dose. Because of these factors—the higher detector efficiency, post-processing capabilities, and reduced need for repeats—there is significant potential for dose reduction with intraoral digital radiography. The other statements are not accurate because digital imaging does offer dose reduction, it does not inherently increase the dose, and it is routinely used for dental imaging.