Will an MRI machine yank your teeth out if you have fillings ?

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D

deftron

Lifer
Nov 17, 2000
10,868
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Not sure, since they're so small...

I know people with wrist pins, pacemakers and plates in their head cant go into the MRI room, cause those things will be ripped out of the body.

 
N8Magic

N8Magic

Lifer
Dec 12, 2000
11,624
1
81
Originally posted by: deftron
Not sure, since they're so small...

I know people with wrist pins, pacemakers and plates in their head cant go into the MRI room, cause those things will be ripped out of the body.
Click to expand...

Most fillings nowadays are made of enamel rather than mercury.

Enamel has no magnetic properties. :)
 
S

Sukhoi

Elite Member
Dec 5, 1999
15,342
104
106
Damn, I never realized I can't have an MRI. My lower right leg is full of screws and staples..
 
B

bsobel

Moderator Emeritus<br>Elite Member
Dec 9, 2001
13,346
0
0
I know people with wrist pins, pacemakers and plates in their head cant go into the MRI room, cause those things will be ripped out of the body.
Click to expand...

'Ripped out' is a little bit of an exageration, but cool to kinda picture ;)

"Because the strong magnets can displace or disrupt the action of implanted metallic objects, people with cardiac pacemakers cannot be scanned and should not enter the MRI scan area. MRI also should not be used for most people with metallic objects in their bodies, such as artificial joints, inner ear (cochlear) implants, brain aneurysm clips, some artificial heart valves, and metallic foreign bodies in the eye or other body areas. MRI is usually not recommended for acute trauma situations because traction and life support equipment cannot enter the scanner area, and because of the long scan times."

Bill


 
D

deftron

Lifer
Nov 17, 2000
10,868
1
0
Originally posted by: crab453
My neck...

I've had many MRIs like that.
Click to expand...

Wow.. is that metal?

I dont see how considering this link

"In this photograph, you can see a fully loaded pallet jack that has been sucked into the bore of an MRI system."


 
R

Rakkis

Senior member
Apr 24, 2000
841
1
0
i highly doubt mercury was EVER used in fillings as it is a VERY poisonous substance.
hell... if we break one of the few mercury thermometers that hasn't been replaced at school, we have to call a mini hazmat team :eek:
 
crab

crab

Diamond Member
Jan 29, 2001
7,330
19
81
Originally posted by: deftron
Originally posted by: crab453
My neck...

I've had many MRIs like that.
Click to expand...

Wow.. is that metal?

I dont see how considering this link

"In this photograph, you can see a fully loaded pallet jack that has been sucked into the bore of an MRI system."
Click to expand...

It's all titanium.

 
J

jhu

Lifer
Oct 10, 1999
11,918
9
81
no the mri machine won't because the fillings aren't ferromagnetic.

i highly doubt mercury was EVER used in fillings as it is a VERY poisonous substance.

dentists still use a mercury amalgam for fillings because it's both cheap and safe. the amount of mercury in your fillings is less than the amount that you'd get from eating bottom-feeding fish.
 
V

Viper GTS

Lifer
Oct 13, 1999
38,107
433
136
Originally posted by: Rakkis
i highly doubt mercury was EVER used in fillings as it is a VERY poisonous substance.
hell... if we break one of the few mercury thermometers that hasn't been replaced at school, we have to call a mini hazmat team :eek:
Click to expand...

Ahem

Viper GTS
 
silverpig

silverpig

Lifer
Jul 29, 2001
27,703
12
81
Originally posted by: jhu
no the mri machine won't because the fillings aren't ferromagnetic.

i highly doubt mercury was EVER used in fillings as it is a VERY poisonous substance.

dentists still use a mercury amalgam for fillings because it's both cheap and safe. the amount of mercury in your fillings is less than the amount that you'd get from eating bottom-feeding fish.
Click to expand...

Yeah... it was used. Back in the old days of not knowing about heavy metal poisoning. One of my teachers back in elementary school told me that when he was young, they'd let kids play with mercury in science class... hold it in their hands etc...
 
J

jhu

Lifer
Oct 10, 1999
11,918
9
81
Quote
Originally posted by: jhu
no the mri machine won't because the fillings aren't ferromagnetic.

i highly doubt mercury was EVER used in fillings as it is a VERY poisonous substance.

dentists still use a mercury amalgam for fillings because it's both cheap and safe. the amount of mercury in your fillings is less than the amount that you'd get from eating bottom-feeding fish.



Yeah... it was used. Back in the old days of not knowing about heavy metal poisoning. One of my teachers back in elementary school told me that when he was young, they'd let kids play with mercury in science class... hold it in their hands etc...


it's still being used. there's currently no conclusive evidence linking dental amalgam to anything other than mild hypersensitivity reactions.
 
StageLeft

StageLeft

No Lifer
Sep 29, 2000
70,150
5
0
I have iron fillings and when I got my MRI I actually had one shoot out of my head and it blew a hole through the machine. Damn near blew the entire building up!
 
crab

crab

Diamond Member
Jan 29, 2001
7,330
19
81
Originally posted by: silverpig
Originally posted by: crab453
My neck...

I've had many MRIs like that.
Click to expand...

d00d, some Indian guy called, he wants that arrowhead he left in your cheek back :p
Click to expand...

Haha, the arrow is just a thing they tape to the xray film catridge...I believe its supposed to represent "up". I was laying down when this was taken.
 
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