To evaluate the accuracy of micro-computed tomography (micro-CT) in digitally reconstructing fragmented teeth for forensic applications.
Key Findings:
Mean deviation between reconstructed and reference meshes was 0.012 mm for the first operator and 0.017 mm for the second operator.
Root-mean-square distances were 0.048 mm and 0.060 mm for the two operators, respectively.
Nearly all reconstructed regions fell within the ±0.05 mm deviation threshold for forensic analyses.
Interoperator bias was below 0.01 mm, with measurements within 95% limits of agreement.
Premolars showed slightly higher root-mean-square values compared to incisors and canines.
Interpretation:
Micro-CT demonstrates strong potential for accurate forensic dental reconstruction, with high precision in capturing both external and internal tooth structures.
Limitations:
Study focused on healthy teeth and used controlled fragmentation, not reflective of typical forensic scenarios.
Exclusion of teeth with extensive damage or fragmentation.
Micro-CT systems are less accessible than conventional forensic imaging methods.
Conclusion:
Micro-CT is a promising tool for forensic dental reconstruction, but further validation with damaged specimens is necessary for broader application.