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dental xrays

CasioTech

Diamond Member
Oct 1, 2000
7,145
9
0
I read a new study saying how dangerous dental xrays are, seeping into the brain, can anyone speculate?
 

DAGTA

Diamond Member
Oct 9, 1999
8,172
1
0
All xrays are dangerous. All put a bit of wear and tear into your body. However, you're not going to make it through life without a bit of wear and tear. ;) So long as you're not getting xrayed frequently, most people can handle it.
 

Encryptic

Diamond Member
May 21, 2003
8,885
0
0
You're asking for speculation on ATOT?

That's like slashing your wrists and sticking your arms into a river full of piranha. :p
 

villageidiot111

Platinum Member
Jul 19, 2004
2,168
1
81
There is a reason dentists either step out of the room or go behind a protective shield during the xray. They are avoiding excess esposure to xrays. However, one or two xrays a year does no harm.
 

Anubis

No Lifer
Aug 31, 2001
78,712
427
126
tbqhwy.com
Originally posted by: villageidiot111
There is a reason dentists either step out of the room or go behind a protective shield during the xray. They are avoiding excess esposure to xrays. However, one or two xrays a year does no harm.

xray tecs at the hospitial do the same exact thing
 

alien42

Lifer
Nov 28, 2004
12,867
3,297
136
i thought they put that heavy lead bib on before doing the x-rays because it was stylish :confused:
 

wfbberzerker

Lifer
Apr 12, 2001
10,423
0
0
i'd be a little more concerned with the amount of radiation you're exposed to with something like radiotherapy for cancer, than the occasional xray.
 

CasioTech

Diamond Member
Oct 1, 2000
7,145
9
0
Originally posted by: villageidiot111
There is a reason dentists either step out of the room or go behind a protective shield during the xray. They are avoiding excess esposure to xrays. However, one or two xrays a year does no harm.




how could it do *no* harm whatsoever? And xraying ones arm is way better than their head.

 

Baked

Lifer
Dec 28, 2004
36,052
17
81
I've been exposed to x-ray so many times I'm surprised I haven't acquired any super powers yet.
 

FoBoT

No Lifer
Apr 30, 2001
63,084
15
81
fobot.com
they don't "seep" through your brain, they speed on through at near the speed of light just like they did through your teeth

you get more radiation exposure from cosmic rays when you fly on an airplane than from a single dental xray


get some more tin foil for your hat and chill out
 

acemcmac

Lifer
Mar 31, 2003
13,712
1
0
Originally posted by: AccruedExpenditure
I swear i feel my DNA getting frayed when they shoot me with that gun.

same

I recently had my abdomen x-rayed during an ER stay.

I was very woozy from the drugs, but I definitley objected to not being given a lead ballsack or something and the technician laughed at me :(
 

spidey07

No Lifer
Aug 4, 2000
65,469
5
76
Originally posted by: alien42
i thought they put that heavy lead bib on before doing the x-rays because it was stylish :confused:

that's to protect your boys and valuable chromosomes they carry.
 

Mark R

Diamond Member
Oct 9, 1999
8,513
16
81
A dental x-ray is a very low effective dose of radiation - mainly because only a small area of the body is exposed (the jaw) and the beam misses vital organs (which are more sensitive to radiation). The brain is not a particularly sensitive organ anyway - and the main x-ray beam is tightly collimated so as to irradiate the minimum amount of the body that isn't necessary for the image.

A typical dental x-ray carries an effective dose of about 10 - 20 µSv. This is equivalent to about 2-3 days of average natural background radiation. It carries no immediate health risk, but is believed to contribute an approx 1 in 1 million chance of giving you a fatal cancer over the next 50 years. (This is estimate is based on extrapolations of the data from the Hiroshima bomb survivors, and there is some controversy over its validity. Despite this, it remains the current best theory and states that there is *no* safe dose, and that the risk of cancer is directly proportional to the dose)

For staff, it's a sensible precaution to step out of the room during an exposure. To staff, the most dangerous radiation source in the room is the patient! In a typical medical x-ray, about 30-40% of the main x-ray beam actually bounces off the patient and is scattered, in all directions, into the room. This is far, far more significant than x-rays leaking past defective shields, or a technician accidentally getting their hand in the beam, etc. For a technician doing several procedures a day, the potential dose from scattered radiation can be significant (particulalry for hospital technicians, who could do 100 procedures a day).

High-dose x-ray procedures like CT scans, are a somewhat different matter. A whole body CT scan, could easily contribute an effective dose of 10 mSv - 1000 times more than a dental x-ray.

It's believed that such a scan carries a 1 in 1000 risk of fatal cancer. This is why it is not appropriate to do whole body scans as part of a routine 'health check'. (Check up scans after cancer, or other illness is a different matter, as CT scans may be the only way to check on progress).
 

moshquerade

No Lifer
Nov 1, 2001
61,504
12
56
Originally posted by: CasioTech
I read a new study saying how dangerous dental xrays are, seeping into the brain, can anyone speculate?
could you link this new study?


that said, exposure from dental xrays is miniscule. you get just as much radiation being outside in the sun for 1/2 an hour as you do from 2 bitewings xrays.

 

jadinolf

Lifer
Oct 12, 1999
20,952
3
81
Originally posted by: Encryptic
You're asking for speculation on ATOT?

That's like slashing your wrists and sticking your arms into a river full of piranha. :p

So true. :(
 

myusername

Diamond Member
Jun 8, 2003
5,046
0
0
Originally posted by: Mark R
A dental x-ray is a very low effective dose of radiation - mainly because only a small area of the body is exposed (the jaw) and the beam misses vital organs (which are more sensitive to radiation). The brain is not a particularly sensitive organ anyway - and the main x-ray beam is tightly collimated so as to irradiate the minimum amount of the body that isn't necessary for the image.

A typical dental x-ray carries an effective dose of about 10 - 20 µSv. This is equivalent to about 2-3 days of average natural background radiation. It carries no immediate health risk, but is believed to contribute an approx 1 in 1 million chance of giving you a fatal cancer over the next 50 years. (This is estimate is based on extrapolations of the data from the Hiroshima bomb survivors, and there is some controversy over its validity. Despite this, it remains the current best theory and states that there is *no* safe dose, and that the risk of cancer is directly proportional to the dose)

For staff, it's a sensible precaution to step out of the room during an exposure. To staff, the most dangerous radiation source in the room is the patient! In a typical medical x-ray, about 30-40% of the main x-ray beam actually bounces off the patient and is scattered, in all directions, into the room. This is far, far more significant than x-rays leaking past defective shields, or a technician accidentally getting their hand in the beam, etc. For a technician doing several procedures a day, the potential dose from scattered radiation can be significant (particulalry for hospital technicians, who could do 100 procedures a day).

High-dose x-ray procedures like CT scans, are a somewhat different matter. A whole body CT scan, could easily contribute an effective dose of 10 mSv - 1000 times more than a dental x-ray.

It's believed that such a scan carries a 1 in 1000 risk of fatal cancer. This is why it is not appropriate to do whole body scans as part of a routine 'health check'. (Check up scans after cancer, or other illness is a different matter, as CT scans may be the only way to check on progress).

I can't point you to a link, but IIRC I read in a scientific journal several years ago that they had determined that if a particle of ionizing radiation strikes a cell's chromosome, there is a 100% chance it will cause cancer.

IOW, the percentage risk rate of cancer under a given exposure is not the probability that cancer will result from chromosomal exposure, but rather the probability that a particle will strike a chromosome. It's mathematically the same thing, but the psychology of it is a lot creepier.
 

Eeezee

Diamond Member
Jul 23, 2005
9,922
0
76
Originally posted by: myusername
Originally posted by: Mark R
A dental x-ray is a very low effective dose of radiation - mainly because only a small area of the body is exposed (the jaw) and the beam misses vital organs (which are more sensitive to radiation). The brain is not a particularly sensitive organ anyway - and the main x-ray beam is tightly collimated so as to irradiate the minimum amount of the body that isn't necessary for the image.

A typical dental x-ray carries an effective dose of about 10 - 20 µSv. This is equivalent to about 2-3 days of average natural background radiation. It carries no immediate health risk, but is believed to contribute an approx 1 in 1 million chance of giving you a fatal cancer over the next 50 years. (This is estimate is based on extrapolations of the data from the Hiroshima bomb survivors, and there is some controversy over its validity. Despite this, it remains the current best theory and states that there is *no* safe dose, and that the risk of cancer is directly proportional to the dose)

For staff, it's a sensible precaution to step out of the room during an exposure. To staff, the most dangerous radiation source in the room is the patient! In a typical medical x-ray, about 30-40% of the main x-ray beam actually bounces off the patient and is scattered, in all directions, into the room. This is far, far more significant than x-rays leaking past defective shields, or a technician accidentally getting their hand in the beam, etc. For a technician doing several procedures a day, the potential dose from scattered radiation can be significant (particulalry for hospital technicians, who could do 100 procedures a day).

High-dose x-ray procedures like CT scans, are a somewhat different matter. A whole body CT scan, could easily contribute an effective dose of 10 mSv - 1000 times more than a dental x-ray.

It's believed that such a scan carries a 1 in 1000 risk of fatal cancer. This is why it is not appropriate to do whole body scans as part of a routine 'health check'. (Check up scans after cancer, or other illness is a different matter, as CT scans may be the only way to check on progress).

I can't point you to a link, but IIRC I read in a scientific journal several years ago that they had determined that if a particle of ionizing radiation strikes a cell's chromosome, there is a 100% chance it will cause cancer.

IOW, the percentage risk rate of cancer under a given exposure is not the probability that cancer will result from chromosomal exposure, but rather the probability that a particle will strike a chromosome. It's mathematically the same thing, but the psychology of it is a lot creepier.

100% chance? That's pretty hard to believe, but I guess it's possible... okay...

Now consider the fact that a random particle of ionizing radiation has a very small chance of hitting a cell's chromosome

Now consider that your body develops and rids itself of cancers daily.

In fact, the chances of your body having some measurable traces of uranium (a RADIOACTIVE element) are fairly high, yet this isn't all that dangerous. Your body is showered with cosmic radiation every second. Your skin absorbs this radiation so as to protect you ;-)

Car accidents cause many times more deaths than cancer caused by radiation, yet people are many times more afraid of radiation than they are of car accidents o_O Radiation is not very high on the list of "things to worry about" in terms of what kills you
 

CasioTech

Diamond Member
Oct 1, 2000
7,145
9
0
Originally posted by: Mark R
A dental x-ray is a very low effective dose of radiation - mainly because only a small area of the body is exposed (the jaw) and the beam misses vital organs (which are more sensitive to radiation). The brain is not a particularly sensitive organ anyway - and the main x-ray beam is tightly collimated so as to irradiate the minimum amount of the body that isn't necessary for the image.

A typical dental x-ray carries an effective dose of about 10 - 20 µSv. This is equivalent to about 2-3 days of average natural background radiation. It carries no immediate health risk, but is believed to contribute an approx 1 in 1 million chance of giving you a fatal cancer over the next 50 years. (This is estimate is based on extrapolations of the data from the Hiroshima bomb survivors, and there is some controversy over its validity. Despite this, it remains the current best theory and states that there is *no* safe dose, and that the risk of cancer is directly proportional to the dose)

For staff, it's a sensible precaution to step out of the room during an exposure. To staff, the most dangerous radiation source in the room is the patient! In a typical medical x-ray, about 30-40% of the main x-ray beam actually bounces off the patient and is scattered, in all directions, into the room. This is far, far more significant than x-rays leaking past defective shields, or a technician accidentally getting their hand in the beam, etc. For a technician doing several procedures a day, the potential dose from scattered radiation can be significant (particulalry for hospital technicians, who could do 100 procedures a day).

High-dose x-ray procedures like CT scans, are a somewhat different matter. A whole body CT scan, could easily contribute an effective dose of 10 mSv - 1000 times more than a dental x-ray.

It's believed that such a scan carries a 1 in 1000 risk of fatal cancer. This is why it is not appropriate to do whole body scans as part of a routine 'health check'. (Check up scans after cancer, or other illness is a different matter, as CT scans may be the only way to check on progress).




hey great post :thumbsup:!!!

 

CasioTech

Diamond Member
Oct 1, 2000
7,145
9
0
Originally posted by: Eeezee
Originally posted by: myusername
Originally posted by: Mark R
A dental x-ray is a very low effective dose of radiation - mainly because only a small area of the body is exposed (the jaw) and the beam misses vital organs (which are more sensitive to radiation). The brain is not a particularly sensitive organ anyway - and the main x-ray beam is tightly collimated so as to irradiate the minimum amount of the body that isn't necessary for the image.

A typical dental x-ray carries an effective dose of about 10 - 20 µSv. This is equivalent to about 2-3 days of average natural background radiation. It carries no immediate health risk, but is believed to contribute an approx 1 in 1 million chance of giving you a fatal cancer over the next 50 years. (This is estimate is based on extrapolations of the data from the Hiroshima bomb survivors, and there is some controversy over its validity. Despite this, it remains the current best theory and states that there is *no* safe dose, and that the risk of cancer is directly proportional to the dose)

For staff, it's a sensible precaution to step out of the room during an exposure. To staff, the most dangerous radiation source in the room is the patient! In a typical medical x-ray, about 30-40% of the main x-ray beam actually bounces off the patient and is scattered, in all directions, into the room. This is far, far more significant than x-rays leaking past defective shields, or a technician accidentally getting their hand in the beam, etc. For a technician doing several procedures a day, the potential dose from scattered radiation can be significant (particulalry for hospital technicians, who could do 100 procedures a day).

High-dose x-ray procedures like CT scans, are a somewhat different matter. A whole body CT scan, could easily contribute an effective dose of 10 mSv - 1000 times more than a dental x-ray.

It's believed that such a scan carries a 1 in 1000 risk of fatal cancer. This is why it is not appropriate to do whole body scans as part of a routine 'health check'. (Check up scans after cancer, or other illness is a different matter, as CT scans may be the only way to check on progress).

I can't point you to a link, but IIRC I read in a scientific journal several years ago that they had determined that if a particle of ionizing radiation strikes a cell's chromosome, there is a 100% chance it will cause cancer.

IOW, the percentage risk rate of cancer under a given exposure is not the probability that cancer will result from chromosomal exposure, but rather the probability that a particle will strike a chromosome. It's mathematically the same thing, but the psychology of it is a lot creepier.

100% chance? That's pretty hard to believe, but I guess it's possible... okay...

Now consider the fact that a random particle of ionizing radiation has a very small chance of hitting a cell's chromosome

Now consider that your body develops and rids itself of cancers daily.

In fact, the chances of your body having some measurable traces of uranium (a RADIOACTIVE element) are fairly high, yet this isn't all that dangerous. Your body is showered with cosmic radiation every second. Your skin absorbs this radiation so as to protect you ;-)

Car accidents cause many times more deaths than cancer caused by radiation, yet people are many times more afraid of radiation than they are of car accidents o_O Radiation is not very high on the list of "things to worry about" in terms of what kills you




that's because ppl have control on the road, but not in front of radiation.