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Related Concept Videos

Bone Disorders01:29

Bone Disorders

Aging and its effect on bone remodeling is the most common cause of bone disorders. In young and healthy people, bone deposition and resorption happen at an equal rate to maintain optimal bone health.
Bone deposition is also affected by the levels of sex hormones like estrogen and testosterone that promote osteoblast activity and bone matrix synthesis. When the level of these hormones decreases due to aging, it causes a reduction in bone deposition. As a result, bone resorption by osteoclasts...
Bone Remodeling01:40

Bone Remodeling

Bone remodeling is a continuous and balanced process of bone resorption by osteoclasts and bone formation by osteoblasts. In adults, it helps maintain bone mass and calcium homeostasis. While mechanical stress can stimulate turnover as part of the normal maintenance and reparative process, several hormones also regulate bone remodeling.
Compact Bone01:27

Compact Bone

Most bones contain compact and spongy osseous tissue, but their distribution and concentration vary based on the bone's overall function.
Compact bone, also called cortical bone, is the denser, stronger of the two types of bone tissue. It is found under the periosteum and in the diaphyses of long bones, where it provides support and protection. The microscopic structural unit of compact bone is called an osteon, or haversian system. Each osteon is composed of concentric rings of calcified...
Imaging Studies for Cardiovascular System VI: Calcium -Scoring CT01:25

Imaging Studies for Cardiovascular System VI: Calcium -Scoring CT

Calcium-Scoring CT ScanA calcium-scoring CT scan, also known as coronary artery calcium (CAC) scan, detects calcium deposits in the coronary arteries. This test assesses the risk of coronary artery disease (CAD), which can lead to cardiovascular events such as angina, heart failure, and sudden cardiac arrest.A calcium-scoring CT scan is generally recommended for individuals at intermediate risk of CAD without symptoms. It includes:Men aged 40-75 and women aged 50-75: Especially those with a...

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Related Experiment Video

Updated: Jul 3, 2026

Scanning Skeletal Remains for Bone Mineral Density in Forensic Contexts
07:56

Scanning Skeletal Remains for Bone Mineral Density in Forensic Contexts

Published on: January 29, 2018

Osteoporosis detection using intraoral densitometry.

O Nackaerts1, R Jacobs, H Devlin

  • 1Oral Imaging Center, Department of Dentistry, Faculty of Medicine, KU Leuven, Belgium.

Dento Maxillo Facial Radiology
|July 9, 2008
PubMed
Summary
This summary is machine-generated.

Jaw bone density shows fair accuracy in detecting osteoporosis in women aged 45-70. Further refinement of densitometric tools may improve diagnostic capabilities for this condition.

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Cortical Bone Assessment Using Ultrasonic Guided Waves: A Reproducibility Study in a Healthy Population
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Cortical Bone Assessment Using Ultrasonic Guided Waves: A Reproducibility Study in a Healthy Population

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Related Experiment Videos

Last Updated: Jul 3, 2026

Scanning Skeletal Remains for Bone Mineral Density in Forensic Contexts
07:56

Scanning Skeletal Remains for Bone Mineral Density in Forensic Contexts

Published on: January 29, 2018

Cortical Bone Assessment Using Ultrasonic Guided Waves: A Reproducibility Study in a Healthy Population
09:02

Cortical Bone Assessment Using Ultrasonic Guided Waves: A Reproducibility Study in a Healthy Population

Published on: January 31, 2025

Area of Science:

  • Oral radiology
  • Osteoporosis diagnostics
  • Bone densitometry

Background:

  • Osteoporosis is a significant public health concern, particularly in postmenopausal women.
  • Accurate and accessible diagnostic methods are crucial for early intervention.

Purpose of the Study:

  • To evaluate the diagnostic accuracy of mandibular and maxillary bone density for osteoporosis detection.
  • To utilize receiver operating characteristic (ROC) analysis for assessing diagnostic performance.

Main Methods:

  • 671 women (45-70 years) underwent gold standard dual-energy X-ray absorptiometry (DXA).
  • Intraoral radiography of the premolar region was performed with an aluminum wedge reference.
  • Dedicated software analyzed jaw bone density; ROC curves were generated.

Main Results:

  • The area under the ROC curve (A(z)) for jaw bone density was 0.705.
  • Sensitivity ranged from 33.9% to 38.7%, with specificity between 83.5% and 85.3% at a 4.3 mm Al equivalent threshold.

Conclusions:

  • Premolar region bone density demonstrates fair diagnostic accuracy for osteoporosis.
  • Improved accuracy may be achievable by incorporating additional factors and refining densitometric tools.