Computerized detection of cemento-enamel junctions in digitized dental radiographs

摘要

The authors present a mathematical morphology algorithm for the detection of the cemento-enamel junction (CEJ) on dental radiographs to determine anatomical crest level. An experiment was carried out using dental images obtained by digitizing radiographs in an image analysis system. The results demonstrated that by employing a simple sequence of operations involving morphological openings and closings and other basic Boolean operations, the desired CEJ can be extracted accurately.