Dental Implants and MRI Scans | What You Need to Know

Are Dental Implants Safe for MRI Scans?

If you have dental implants and need an MRI scan, you are likely wondering whether the metal in your jaw is a problem. The good news: modern titanium dental implants are non-ferromagnetic — meaning they are not attracted to the powerful magnetic fields used in MRI machines. In the vast majority of cases, dental implants do not interfere with MRI imaging and do not pose a safety risk to the patient.

Why Titanium Is the Metal of Choice for Implants

Titanium has been the implant material of choice since the 1960s precisely because it is biologically inert and non-magnetic. Unlike steel or iron, titanium does not respond to magnetic fields. It will not move, vibrate, or heat up inside an MRI scanner. This is why titanium is also used for orthopaedic implants, bone plates, and hip replacements — all of which are routinely MRI-compatible.

What About the Crown, Abutment, and Other Components?

A dental implant restoration consists of three parts:

• The implant fixture — titanium post in the bone (non-magnetic, fully MRI safe)
• The abutment — usually titanium or zirconia (both non-magnetic)
• The crown — typically ceramic or zirconia (non-metallic, fully MRI safe)

Older crowns or bridges may contain metal alloys such as cobalt-chrome or nickel. These do not pose a safety hazard in MRI but can cause localised imaging artefacts near the metal. If your implant crown contains metal alloy, inform your radiologist before the scan.

Always Declare Dental Implants Before an MRI

Always declare any dental implants, crowns, bridges, or orthodontic appliances before an MRI scan. This includes fixed metal bridges, metal-core crowns, palatal expanders with metal components, and orthodontic retainers with wire. MRI technicians screen for ferromagnetic metal before every scan. Titanium implants will typically be listed as conditional MRI safe in the device documentation, meaning safe under standard clinical MRI conditions at 1.5T or 3T.

Will My Implant Affect MRI Image Quality?

For MRI scans of the body such as the chest, abdomen, spine, or knee, dental implants cause no meaningful image artefact. For MRI scans specifically targeting the jaw or skull base, there may be some localised distortion near the implant, though this rarely affects clinical interpretation. Your radiologist may recommend CBCT or CT for that specific region if needed.

If you need documentation of your implant manufacturer and material certification for an upcoming MRI, contact our team at Top Smile Dental Clinic. We maintain full records of all implant systems used and can provide the relevant MRI safety classification documents.