Dental radiographs deliver low doses of ionizing radiation to create images of teeth, bones, and soft tissues of the mouth. The amount varies depending on the type of x-ray (bitewing, periapical, panoramic) and the technology employed (digital or film). Digital systems generally require less radiation. Exposure is measured in units like microsieverts (Sv). A typical bitewing radiograph, for example, might involve an exposure of around 5 Sv.
Understanding exposure levels is crucial for patient safety and informed consent. While the doses from dental x-rays are considered low, minimizing unnecessary exposure remains a central tenet of radiation protection. Technological advancements, including faster film speeds and digital sensors, have significantly reduced exposure levels compared to earlier methods. This knowledge empowers patients and practitioners to make sound decisions regarding the frequency and type of necessary radiographic examinations, balancing diagnostic benefits with potential risks.
