MRI with dental implants:
screen the complete prosthesis, not only the fixture.

Can you have an MRI with dental implants?

Many conventional dental implants can be scanned under appropriate conditions, but the MRI service must screen the complete device and decide based on verified product information and the planned examination.

Titanium and many other dental implant materials are not automatically a contraindication, yet “I have a dental implant” is insufficient for safety clearance. The implant fixture, abutment, crown or bridge, bar, clip, overdenture attachment and any magnetically activated component can be made from different materials. Removable dentures and external appliances may need removal. Scanner field strength, sequence, body region and device conditions matter. The radiology team—not the dental clinic, patient or web page—makes the final decision using local policy, manufacturer labelling and risk-benefit assessment. Do not cancel medically important imaging before screening, and never conceal an implant or unknown metallic dental device.

What information the MRI team needs

Provide implant system, model, material, placement date, prosthetic components, magnetic attachments and any manufacturer MRI labelling you have.

Use the implant passport, labels, operative note and restorative record. For full-arch or overdenture treatment, ask whether the bar, clips, keepers or attachments contain magnets or other alloys. If a removable prosthesis can be removed, the radiology team will state when and where to do so. Report previous surgery, retained instruments, craniofacial plates and all other implants separately. The dental practice can help identify a system from records, but visual appearance or a generic brand brochure may not establish the exact component. When documentation is unavailable, tell the MRI service early; they may seek radiographs, device databases or specialist safety review rather than guessing on the scan day.

MRI safety issues with dental implants

Screening considers magnetic force, torque, radiofrequency heating, induced effects and the security of removable or magnetically activated components.

Conventional osseointegrated dental implants are mechanically fixed in bone and many have been evaluated without clinically significant displacement under specified conditions. However, devices with magnetic attachments need particular attention because they can interact with the field, demagnetise or create substantial artefact. Heating depends on material, geometry, configuration and sequence; patients should receive the standard instruction to report unusual warmth, pain or pulling during scanning. A loose dental restoration or unknown appliance should be evaluated before MRI for ordinary dental reasons as well. The MRI team may adapt conditions, choose another method or defer until documentation is obtained when uncertainty is material.

Dental implant MRI artefacts

An implant can be safe yet distort nearby images; artefact depends on material, components, orientation, sequence and distance from the anatomy of interest.

Metal can cause signal loss, geometric distortion or local image voids. Titanium and titanium-zirconium implants can create measurable artefacts, while materials behave differently across MRI, CT and CBCT. The effect is often more relevant when imaging the face, jaws, brain, neck or nearby structures than when examining a distant knee or abdomen. The radiologist can use sequence and parameter adjustments, positioning or metal-artefact reduction strategies when appropriate. Sometimes another modality answers the clinical question better, but that decision must balance diagnostic need and radiation. Do not assume a distorted dental-region image means the implant moved or was damaged.

MRI after dental implants placed abroad

Obtain complete implant and prosthetic records before leaving the clinic so urgent or future imaging is not delayed by unknown components.

Request exact manufacturer, system, model, dimensions, positions, material, abutments, bars, screws, framework and attachment details. Ask for manufacturer MRI information when available, while recognising that radiology verifies current labelling. Keep records electronically and provide an English or otherwise usable version. If the clinic changes components during repair, update the passport. Before an MRI appointment, send records through the approved channel rather than arriving with an inaccessible portal or screenshots. A local dentist may help inventory the restoration, but only the MRI safety service clears the scan. When a medically urgent scan is needed, tell the team about uncertainty rather than delaying care on your own.

An MRI with dental implants screening checklist

Complete this with the MRI service before the scan.

Related Dridih Dent information

Use the dedicated pathway that owns each clinical or planning question: