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Updated: Aug 7, 2026

Systematic Assessment of Mammalian Skull Specimens for Dental and Temporomandibular Joint Pathology
Published on: August 22, 2022
Diagnosing periapical lesions--disagreement and borderline cases
1Section of Oral Radiology, School of Dentistry, University of Bergen, Norway. agnar.halse@odont.uib.no
Aim:
The aim of this paper is to present a selection of disagreement and borderline cases from a methodological study on the radiographic diagnosis of periapical disease.
Methodology:
Thirty-two roots, 12% of the material in an earlier study, were subjected to joint discussion because of diagnostic problems. The aim was consensus. Six cases representing different teeth/roots illustrating typical problems are presented.
Results:
The varying morphology of apical areas and varying density of surrounding bone present a number of challenges. Even so, the joint discussion resulted in an agreement for all the cases. Twenty-five diagnoses were established and seven cases were not diagnosed owing to substandard radiographs.
Conclusion:
A detailed analysis of the periodontal ligament space, the lamina dura, trabecular pattern and bone marrow spaces is mandatory for the radiographic diagnosis of periapical disease

