Related Experiment Video
Updated: Aug 8, 2026
12:18
Magnetic Resonance Elastography Methodology for the Evaluation of Tissue Engineered Construct Growth
Published on: February 9, 2012
Dental materials and magnetic resonance imaging
Hana Hubálková1, Karel Hora, Zdenek Seidl
1Department of Stomatology, 1st Medical Faculty, Charles University, Katerinská 32, 128 01 Praha 2, Czech Republic. hana.hubalkova@quick.cz
The European Journal of Prosthodontics and Restorative Dentistry
|October 18, 2002
Summary
Dental materials like alloys, implants, and fixation wires are safe for patients undergoing magnetic resonance imaging (MRI). While significant artifacts may occur, impacting MRI results, these dental materials pose no direct health risk during the procedure.
Area of Science:
- Biomaterials Science
- Radiology
- Dental Materials
Background:
- Magnetic Resonance Imaging (MRI) utilizes strong magnetic fields.
- Dental materials are frequently present in patients undergoing MRI scans.
- Assessing the safety and interaction of dental materials with MRI is crucial.
Purpose of the Study:
- To evaluate the in vitro reaction of various dental materials within an MRI magnetic field.
- To determine potential health risks associated with dental materials during MRI procedures.
- To analyze artifact generation, heating, and force effects.
Main Methods:
- In vitro testing of 15 dental alloys, 4 dental implants, 1 surgical splint, and 2 maxillofacial fracture fixation wires.
- Exposure to the magnetic field of an MRI device.
- Assessment of magnetic properties, heating, and force effects.
Main Results:
- Movement and heating effects were consistent with existing literature.
- Significant artifacts were observed: 55 mm for the surgical splint, up to 22 mm for wires, and 28 x 20 mm for a dental blade implant.
- Artifacts can substantially influence MRI results.
Conclusions:
- Selected dental appliances are safe for patients during MRI procedures.
- The presence of dental materials does not pose a direct health risk.
- Observed artifacts may impact the diagnostic quality of MRI scans.
Related Concept Videos
01:24X-ray Imaging
German physicist Wilhelm Röntgen (1845–1923) was experimenting with electrical current when he discovered that a mysterious and invisible "ray" would pass through his flesh but leave an outline of his bones on a screen coated with a metal compound. In 1895, Röntgen made the first durable record of the internal parts of a living human: an "X-ray" image (as it came to be called) of his wife’s hand. Scientists worldwide quickly began their own experiments with X-rays, and by 1900, X-ray was widely...
01:24Magnetic Resonance Imaging
Magnetic resonance imaging (MRI) is a noninvasive medical imaging technique based on a phenomenon of nuclear physics discovered in the 1930s, in which matter exposed to magnetic fields and radio waves was found to emit radio signals. In 1970, a physician and researcher named Raymond Damadian noticed that malignant (cancerous) tissue gave off different signals than normal body tissue. He applied for a patent for the first MRI scanning device in clinical use by the early 1980s. The early MRI...
01:30Radiological Investigation II: MRI and Ventilation Perfusion Scan
Description
Magnetic Resonance Imaging (MRI) and Ventilation Perfusion Scans are two radiological investigations that offer detailed diagnostic images of the body, particularly lung structures.
MRI
MRI uses magnetic fields and radiofrequency signals to distinguish between normal and abnormal tissues. This technology provides a more detailed diagnostic image than CT scans, enabling it to characterize pulmonary nodules, stage bronchogenic carcinoma, and evaluate inflammatory activity in...
Magnetic Resonance Imaging (MRI) and Ventilation Perfusion Scans are two radiological investigations that offer detailed diagnostic images of the body, particularly lung structures.
MRI
MRI uses magnetic fields and radiofrequency signals to distinguish between normal and abnormal tissues. This technology provides a more detailed diagnostic image than CT scans, enabling it to characterize pulmonary nodules, stage bronchogenic carcinoma, and evaluate inflammatory activity in...
01:14Imaging Studies I: CT and MRI
Introduction: MRI and CT scans are crucial advancements in medical imaging techniques, playing a vital role in diagnosing conditions related to the gastrointestinal (GI) system. Each scan serves distinct purposes, targets specific areas, and requires unique nursing duties.
Description of the Procedures
Computed Tomography (CT) scan:
Computed Tomography (CT) scans use X-ray technology to generate detailed images of bones, organs, and tissues. During the scan, the patient lies on a moving table...
Description of the Procedures
Computed Tomography (CT) scan:
Computed Tomography (CT) scans use X-ray technology to generate detailed images of bones, organs, and tissues. During the scan, the patient lies on a moving table...
01:21Imaging Studies for Cardiovascular System IV: CMRI
Cardiovascular magnetic resonance imaging, or CMRI, is a non-invasive diagnostic test that employs a magnetic field and radiofrequency waves to create precise images of the heart and arteries. It provides comprehensive information about cardiac anatomy, function, perfusion, and tissue characterization without ionizing radiation.IndicationsCMRI diagnoses various heart conditions, including tissue damage from heart attacks, ischemic heart disease, myocarditis, aortic issues (tears, aneurysms,...
01:27Imaging Studies IV: Magnetic Resonance Imaging
Introduction:Magnetic Resonance Imaging, or MRI, can include a specialized imaging technique of the urinary system known as Magnetic Resonance Urography (MRU). This radiation-free technique uses strong magnetic fields and radio waves to produce detailed images with the help of a computer. MRU is particularly effective for visualizing fluid-filled structures like the kidneys, ureters, and bladder.Applications of MRI in the Genitourinary SystemKidneys and Ureters: MRI detects tumors, cysts,...