Reliability of radiographical interpretations.

Seventy-nine dentists were asked to evaluate the radiographs of 10 endodontically treated teeth and to answer a questionnaire concerning the projected cases. A comparison of the answers revealed a great deal of disagreement among the observers. Of the dentists surveyed, 21.8% disagreed with themselves when shown the same case a second time. It was concluded that, although radiographs are indispensable to endodontic treatment and determination of success, the limitations of visual interpretation must always be considered.

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