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Panoramic radiography in dental diagnostics

B Molander1

  • 1Department of Oral Diagnostic Radiology, Faculty of Odontology, Göteborg University, Sweden.

Swedish Dental Journal. Supplement
|January 1, 1996
PubMed
Summary

Panoramic radiography shows technical limitations and moderate agreement with intraoral radiography for diagnosing dental conditions. A combination of both methods is recommended for comprehensive dental examinations, especially for periapical lesions and marginal bone loss.

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Area of Science:

  • Dental diagnostics
  • Radiography
  • Oral imaging

Background:

  • Panoramic radiography is a common dental imaging technique.
  • Technical properties and diagnostic accuracy require evaluation.
  • Comparison with intraoral radiography is essential for clinical decision-making.

Purpose of the Study:

  • To assess technical and diagnostic properties of panoramic radiography.
  • To evaluate agreement between panoramic and intraoral radiography for specific dental diagnoses.
  • To determine optimal imaging strategies for comprehensive dental examinations.

Main Methods:

  • Analysis of radiation beam area, absorbed doses, and image quality for panoramic units.
  • Evaluation of diagnostic agreement in periapical pathology, marginal bone height, and caries diagnosis in 400 patients.
  • Assessment of combined panoramic and intraoral radiography procedures.

Main Results:

  • Panoramic radiography beam area was wider than optimal with high contact dose; modifications can improve this.
  • Agreement between panoramic and intraoral radiography varied (46-55% for periapical, 49-55% for bone height, 34-46% for caries).
  • A combination of panoramic and intraoral radiography demonstrated high sensitivity (80-96%) for periapical and bone loss diagnoses.

Conclusions:

  • Panoramic radiography alone is insufficient for diagnosing periapical lesions, marginal bone loss, and caries.
  • A combined approach of panoramic and intraoral radiography is effective for comprehensive dental surveys.
  • Intraoral radiography remains the preferred method for examining limited regions.

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