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Updated: Mar 14, 2026

Semiautomated Longitudinal Microcomputed Tomography-based Quantitative Structural Analysis of a Nude Rat Osteoporosis-related Vertebral Fracture Model
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[Osteoporosis detection using cone-beam computed tomography].

M-A Geibel1, F Löffler2, D Kildal3

  • 1Zentrum für Zahn-, Mund- und Kieferheilkunde, Klinik für Mund-Kiefer-Gesichtschirurgie, Albert-Einstein-Allee 11, 89081, Ulm, Deutschland. margrit-ann.geibel@uniklinik-ulm.de.

Der Orthopade
|September 30, 2016
PubMed
Summary
This summary is machine-generated.

Cone-beam computed tomography (CBCT) of the mandible shows limited potential for osteoporosis detection. Mandibular indices like CTMI, CTI(S), and CTI(I) offer low sensitivity and specificity for diagnosing osteoporosis.

Keywords:
Bone mineral densityDEXA scanDental Digital RadiographyMandibleVolume computed tomography

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Area of Science:

  • Dentistry
  • Radiology
  • Osteology

Background:

  • Osteoporosis remains underdiagnosed in Germany, necessitating novel detection methods.
  • Early detection is crucial for managing osteoporosis and preventing fractures.

Purpose of the Study:

  • To investigate the efficacy of cone-beam computed tomography (CBCT) of the mandible in detecting osteoporosis.
  • To evaluate the diagnostic performance of mandibular indices: computed tomography mental index (CTMI), computed tomography mandibular index superior (CTI[S]), and computed tomography mandibular index inferior (CTI[I]).

Main Methods:

  • Analysis of 16 CBCT images from patients aged 55+ with confirmed osteoporosis status via DXA or CT bone density.
  • Calculation and comparison of CTMI, CTI(S), and CTI(I) between osteoporosis and control groups.
  • Separate analysis for mixed and female-only subject groups.

Main Results:

  • Specific thresholds for CTMI (< 3.0 mm), CTI(S) (< 0.18), and CTI(I) (< 0.23) were identified for potential osteoporosis.
  • For CTMI and CTI(S), sensitivity/specificity ranged from 66.7%/70% (mixed group) to 80%/57.1% (female group).
  • For CTI(I), sensitivity/specificity ranged from 50%/70% (mixed group) to 60%/57.1% (female group).

Conclusions:

  • The evaluated mandibular indices (CTMI, CTI[S], CTI[I]) demonstrate limited utility for osteoporosis detection.
  • Further research may be needed to refine these methods or explore alternative CBCT-based approaches for osteoporosis screening.