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Quantifications of Mandibular Trabecular Bone Microstructure Using Cone Beam Computed Tomography for Age Estimation:

Arshiya Tabassum1, Mansharan Kaur Chainchel Singh2, Norliza Ibrahim3

  • 1Center for Oral and Maxillofacial Diagnostics and Medicine Studies, Faculty of Dentistry, Universiti Teknologi MARA Selangor, Sungai Buloh 47000, Selangor, Malaysia.

Biology
|October 27, 2022
PubMed
Summary

This study analyzed trabecular bone microstructure in the mandible using CBCT scans. Trabecular bone parameters showed an inverse relationship with chronological age, suggesting changes in bone structure over time.

Keywords:
age estimationcone beam CTtrabecular bone microstructure

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Area of Science:

  • Oral and Maxillofacial Radiology
  • Biomaterials Science
  • Gerontology

Background:

  • Trabecular bone microstructure (TBM) is crucial for mandibular integrity.
  • Age-related changes in TBM can impact bone health and dental implant success.
  • Limited research exists on correlating TBM parameters with chronological age in the mandible.

Purpose of the Study:

  • To correlate mandibular TBM parameters with chronological age and sex.
  • To quantify TBM parameters in relation to chronological age.
  • To assess age and sex-related changes in mandibular TBM.

Main Methods:

  • Retrospective analysis of 20 cone-beam computed tomographic (CBCT) scans from adults aged 22-43.
  • Segmentation of TBM in the mandible using a semi-automatic threshold-guided method.
  • Statistical analysis using Pearson correlation to assess relationships between TBM parameters, age, and sex.

Main Results:

  • No statistically significant differences in TBM parameters were found between chronological age and sex (p > 0.05).
  • Statistically significant negative correlations were observed between Trabecular number (Tb. N) and Bone Surface to Volume ratio (BS/TV) with chronological age (p = 0.029 and p = 0.017, respectively).
  • Tb. N and BS/TV demonstrated an inverse relationship with chronological age.

Conclusions:

  • Mandibular TBM parameters, specifically Tb. N and BS/TV, exhibit an inverse relationship with chronological age.
  • CBCT-derived digital imprints can serve as valuable biological profiles for TBM data collection.
  • Further research is needed to fully elucidate age-related changes in mandibular TBM.