[Radiodiagnostics: between looking and observing].

The quality of radiodiagnostics is crucial because of its important role in general diagnostics and the subsequent treatment planning. Nowadays, digital radiology is providing many new opportunities, such as optimization of contrast and brightness of the radiographic image. Nevertheless, it is a fact that not every abnormality is discovered and recognized, in spite of the technological advancements. The perceptive abilities of the observer is in many circumstances the limiting factor. The question is how crucial an incorrect observation of the presence or absence of an abnormality on the radiograph is and what the clinician can do to minimize the chance of mistakes as much as possible. The decision to make a radiograph and the choice of imaging technique are essential. An oral health care provider can take advise with several guidelines, indicating what is currently considered good practice by the profession.