ReviewWorld journal of radiology2014
Bone mineral density in cone beam computed tomography: Only a few shades of gray.
Review in World journal of radiology, 2014. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 26 papers.
What it found
Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.
The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
The trial behind it
Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.
Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.
Who cites it
26 citing papers in PubMed, 56 citations in OpenAlex.
- Site-Specific Associations Between CBCT-Derived Gray Value and Fractal Dimension and DEXA T-Scores in Postmenopausal Women: A Cross-Sectional Analytical Study.Clinical and experimental dental research · 2026Article
- Methodological Limitations of CBCT-Derived Gray Values in Assessing Radiographic Attenuation Patterns After Peri-Implantitis Surgery: Secondary Analysis of a Prospective Clinical Cohort.Journal of clinical medicine · 2026Article
- Evaluation of trabecular architecture and bone density in periradicular bone of dilacerated mandibular third molars: a cone beam computed tomography study.BMC medical imaging · 2026Article
- Assessing Alveolar Bone Volume Fraction in Dental Implantology Using 1.5 Tesla Magnetic Resonance Imaging: AnIEEE open journal of engineering in medicine and biology · 2026Article
- Article
- Evaluation of the Effects of Photobiomodulation on Bone Density After Placing Dental Implants: A Pilot Study Using Cone Beam CT Analysis.Clinics and practice · 2025Article
- Predictive Evaluation of Septal Cartilage-bone Complex for Rhinoplasty Using Cone Beam Computed Tomography.Plastic and reconstructive surgery. Global open · 2025Article
- Bone Densitometric Analysis using Cone Beam Computed Tomography (Cone Beam CT) and Computed Tomography (CT): Establishing the Correlation between Predicted and Actual Values.Advanced biomedical research · 2025Article
- Outcomes of Xenograft with Platelet-rich Fibrin versus Autogenous Bone in Alveolar Cleft Grafting.Plastic and reconstructive surgery. Global open · 2024Article
- A comparative radiographic study of bone density changes around titanium implants in the posterior mandible, preoperative, and postoperative.Annals of medicine and surgery (2012) · 2024Article
- Assessment of CBCT gray value in different regions-of-interest and fields-of-view compared to Hounsfield unit.Dento maxillo facial radiology · 2023Article
- Correlation among alveolar bone assessments provided by CBCT, micro-CT, and 14 T MRI.Dento maxillo facial radiology · 2022Article
- A Comparative Study on the Voxel Values in Alveolar Bones Acquired by MDCT and Newly Developed Dental Dual-Energy CBCT.Sensors (Basel, Switzerland) · 2021Article
- Gray value measurement for the evaluation of local alveolar bone density around impacted maxillary canine teeth using cone beam computed tomography.Medicina oral, patologia oral y cirugia bucal · 2021Article
- Interspecies Comparison of Alveolar Bone Biology, Part I: Morphology and Physiology of Pristine Bone.JDR clinical and translational research · 2021Article
- Associations among Primary Stability, Histomorphometric Findings, and Bone Density: A Prospective Randomized Study after Alveolar Ridge Preservation with a Collagen Cone.Dentistry journal · 2020Article
- Comparison of mandibular cortical bone among obese, overweight, and normal weight adolescents using panoramic mandibular index and mental index.Clinical oral investigations · 2020Article
- CT Role in the Assessment of Existence of Breast Cancerous Cells.Journal of biomedical physics & engineering · 2020Article
- Imaging of nano-hydroxyapatite/chitosan scaffolds using a cone beam computed tomography device on rat calvarial defects with histological verification.Clinical oral investigations · 2020Article
- A clinical pilot study of jawbone mineral density measured by the newly developed dual-energy cone-beam computed tomography method compared to calibrated multislice computed tomography.Imaging science in dentistry · 2019Article
Corrections and comments
PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.
Authors and funding
5 authors at 1 institution in 1 country.
Funding
No grant is acknowledged in the PubMed record.
Abstract
Cone beam computed tomography (CBCT) has often been used to determine the quality of craniofacial bone structures through the determination of mineral density, which is based on gray scales of the images obtained. However, there is no consensus regarding the accuracy of the determination of the gray scales in these exams. This study aims to provide a literature review concerning the reliability of CBCT to determine bone mineral density. The gray values obtained with CBCT show a linear relationship with the attenuation coefficients of the materials, Hounsfield Units values obtained with medical computed tomography, and density values from dual energy X-ray absorciometry. However, errors are expected when CBCT images are used to define the quality of the scanned structures because these images show inconsistencies and arbitrariness in the gray values, particularly when related to abrupt change in the density of the object, X-ray beam hardening effect, scattered radiation, projection data discontinuity-related effect, differences between CBCT devices, changes in the volume of the field of view (FOV), and changes in the relationships of size and position between the FOV and the object evaluated. A few methods of mathematical correction of the gray scales in CBCT have been proposed; however, they do not generate consistent values that are independent of the devices and their configurations or of the scanned objects. Thus, CBCT should not be considered the examination of choice for the determination of bone and soft tissue mineral density at the current stage, particularly when values obtained are to be compared to predetermined standard values. Comparisons between symmetrically positioned structures inside the FOV and in relation to the exomass of the object, as it occurs with the right and left sides of the skull, seem to be viable because the effects on the gray scale in the regions of interest are the same.
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Registered trials
Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.