While most available info on the Web suggests there should be no physical harm in having an MRI, even with very old dental crowns, the ones I have date from the 1980-90s. So around 40 years old. Some will almost certainly have traces (or more) of ferromagnetic materials (Iron, cobalt, nickel) used to strengthen the crown. The available literature and recommendations seem to apply to newer crowns, which don't use those materials. There is the odd case report of old dental crowns moving and in one case getting pulled right out of the patient's mouth by the magnets.

Anyone with experience of having an MRI with ancient dental crowns?

Sorry not to have the answer. But the description still has me laughing! Get well soon, chap!

I have crowns done in the 80's.

been no issue on the few MRI's I have endured.

2 hours ago, ronnie50 said:

While most available info on the Web suggests there should be no physical harm in having an MRI, even with very old dental crowns, the ones I have date from the 1980-90s. So around 40 years old. Some will almost certainly have traces (or more) of ferromagnetic materials (Iron, cobalt, nickel) used to strengthen the crown. The available literature and recommendations seem to apply to newer crowns, which don't use those materials. There is the odd case report of old dental crowns moving and in one case getting pulled right out of the patient's mouth by the magnets.

Anyone with experience of having an MRI with ancient dental crowns?

yes, no harm

I have dental caps or crowns dating back to the 70’s.

I have had many MRI’s since, no issues.

1 hour ago, John49 said:

I have dental caps or crowns dating back to the 70’s.

I have had many MRI’s since, no issues.

With your head in the MRI?

20 hours ago, Ralf001 said:

I have crowns done in the 80's.

been no issue on the few MRI's I have endured.

Ditto.

8 hours ago, scubascuba3 said:

With your head in the MRI?

Includes, at least 2 full body MRI's - so, with a "head in the MRI"?

8 minutes ago, John49 said:

Includes, at least 2 full body MRI's - so, with a "head in the MRI"?

That was the question, was the head in the MRI? Sometimes it isn't for example my recent knee

Edited June 7Jun 7 by scubascuba3

9 minutes ago, scubascuba3 said:

9 minutes ago, scubascuba3 said:

That was the question, was the head in the MRI? Sometimes it isn't for example my recent knee

Right, I was researching that too. If it's your middle spine or lower that need to be scanned, they can place you in feet first (depending on how tall you are).

1 hour ago, ronnie50 said:

Right, I was researching that too. If it's your middle spine or lower that need to be scanned, they can place you in feet first (depending on how tall you are).

Yes, makes sense, when i had a shoulder MRI i was head first

On 6/6/2026 at 12:08 PM, ronnie50 said:

While most available info on the Web suggests there should be no physical harm in having an MRI, even with very old dental crowns, the ones I have date from the 1980-90s. So around 40 years old. Some will almost certainly have traces (or more) of ferromagnetic materials (Iron, cobalt, nickel) used to strengthen the crown. The available literature and recommendations seem to apply to newer crowns, which don't use those materials. There is the odd case report of old dental crowns moving and in one case getting pulled right out of the patient's mouth by the magnets.

Anyone with experience of having an MRI with ancient dental crowns?

On 6/6/2026 at 12:08 PM, ronnie50 said:

While most available info on the Web suggests there should be no physical harm in having an MRI, even with very old dental crowns, the ones I have date from the 1980-90s. So around 40 years old. Some will almost certainly have traces (or more) of ferromagnetic materials (Iron, cobalt, nickel) used to strengthen the crown. The available literature and recommendations seem to apply to newer crowns, which don't use those materials. There is the odd case report of old dental crowns moving and in one case getting pulled right out of the patient's mouth by the magnets.

Anyone with experience of having an MRI with ancient dental crowns?

Had one, my dentures did not pop out. It showed that I needed some things cut out...Surgery was successful. 55

You guys have crowns that lasted 40/50 years. You must have exceptionally skilled dentists. Mine give up the ghost after 20 to 30 years.