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Radiographic interpretation of periapical areas is significantly affected by obturation length, radiodensity, and voids. Shorter obturation lengths, particularly 3mm short, negatively impact assessments, influencing diagnostic accuracy in endodontics.

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Area of Science:

  • Endodontics
  • Radiology
  • Dental Imaging

Background:

  • Limited research exists on factors influencing periapical area interpretation.
  • Key variables like obturation length, radiodensity, and voids require evaluation.

Purpose of the Study:

  • To assess the impact of obturation length, radiodensity, and voids on radiographic periapical interpretations.
  • To understand how these variables affect diagnostic accuracy.

Main Methods:

  • A web-based survey presented 748 observers with altered digital radiographs.
  • Images varied in obturation length (flush, 1mm short, 3mm short), radiodensity (low, intermediate, high), and void presence (none, single, several).
  • Statistical analysis included Kruskal-Wallis, Mann-Whitney U, and Cliff's delta tests.

Main Results:

  • Significant differences (P ≤ 0.01) were found across all tested variables.
  • Obturation length, radiodensity, and void presence all influenced periapical interpretations.
  • Effect sizes ranged from 0.19 to 0.41.

Conclusions:

  • Radiographic interpretation of periapical areas is significantly influenced by obturation length, radiodensity, and voids.
  • Obturation length, specifically 3mm short, had the most substantial impact, leading to less favorable interpretations.
  • These findings highlight the importance of technical quality in endodontic radiography for accurate diagnosis.