Radiographs of 5350 patients (4103 orthopantomograms, 1247 panoramics) were examined and the edentulous parts of the alveolarridges were estimated. In 1741 patients we stated 2070 pathological findings without clinical evidences. In 329 cases multiple findings were registered. Most of the cases were impacted teeth, followed by root fragments. Therapeutic measures must be decided individually. Because of the frequency of pathological x-ray-findings, diagnosis is incomplete without radiographs of the toothless jaw-parts.