Abstract

Aim: To illustrate disagreement cases arising from a systematic study on the radiographic diagnosis of periapical radiolucent lesions. Materials and methods: 152 cases of periapical radiolucent lesions taken with paralleling technique were analyzed separately by the observers. Disagreement cases were subjected to joint discussion based on Delphi technique for diagnostic consensus. Results: A total of 121 cases (79.6 %) had an agreement on diagnosis. 31 cases which had diverse appearance were jointly discussed and an agreement was reached for all the cases. Conclusion: A complete knowledge of the radiographic appearances of periodontal ligament space, Lamina dura and trabecular bone marrow pattern under normal and pathologic conditions and a systematic diagnostic sequence is mandatory for the radiographic diagnosis of periapical diseases.

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