• For Group Old-timers: Beryllium

    From Vaughn Simon@21:1/5 to All on Tue Mar 6 11:51:56 2018
    If there is anyone left here from the old days (I see that Stephen
    Bornfeld is still here) I was once a regular on this group. I am the
    fellow whose wife was exposed to beryllium while working in a dental
    lab, and ended up with incurable Chronic Beryllium Disease (CBD), which ravished her lungs.

    So here is the end of our personal story: For some 20 years we made
    annual treks to the Occupational Lung Disease Clinic at National Jewish
    Medical Center in Denver. Because there is a significant group of
    patients in Denver with that disease, these people are the best in the
    world for this particular disease. From the very beginning they
    stressed that CBD is "managed" and not cured.

    We had a terrible time back in the 1990s when Margaret was going from
    doctor to doctor to find out why she had that terrible cough and why her
    weight was melting away. The truth was, I thought I was losing her.
    Finally she ended up with a local pulmonologist, who suspected an
    occupational origin to Margaret's disease. That's when he started
    asking us about what metals Margaret worked with on her job. Beryllium
    was an ingredient in certain of those dental alloys, and she ultimately
    tested positive for Beryllium disease.

    With proper treatment, what followed was two decades of acceptable
    health, followed by an inevitable decline.

    A few weeks ago I lost her after 43 years of happy marriage. What
    ultimately killed her was a combination of CBD and the complications
    that go with living with chronic lung disease. Still, I will be forever grateful for those extra two decades of life that medical science gave
    to Margaret.



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  • From Frank <"frank@21:1/5 to Vaughn Simon on Wed Mar 7 09:28:01 2018
    On 3/6/2018 11:51 AM, Vaughn Simon wrote:
    If there is anyone left here from the old days (I see that Stephen
    Bornfeld is still here) I was once a regular on this group.  I am the
    fellow whose wife was exposed to beryllium while working in a dental
    lab, and ended up with incurable Chronic Beryllium Disease (CBD), which ravished her lungs.

    So here is the end of our personal story: For some 20 years we made
    annual treks to the Occupational Lung Disease Clinic at National Jewish Medical Center in Denver.  Because there is a significant group of
    patients in Denver with that disease, these people are the best in the
    world for this particular disease.  From the very beginning they
    stressed that CBD is "managed" and not cured.

    We had a terrible time back in the 1990s when Margaret was going from
    doctor to doctor to find out why she had that terrible cough and why her weight was melting away.  The truth was, I thought I was losing her.
    Finally she ended up with a local pulmonologist, who suspected an occupational origin to Margaret's disease.  That's when he started
    asking us about what metals Margaret worked with on her job.  Beryllium
    was an ingredient in certain of those dental alloys, and she ultimately tested positive for Beryllium disease.

    With proper treatment, what followed was two decades of acceptable
    health, followed by an inevitable decline.

    A few weeks ago I lost her after 43 years of happy marriage.  What ultimately killed her was a combination of CBD and the complications
    that go with living with chronic lung disease.  Still, I will be forever grateful for those extra two decades of life that medical science gave
    to Margaret.



    ---
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    Sorry to hear about your loss.
    I'm a retired chemist but had never heard about this problem.
    Something as simple as a dust mask would have probably prevented it.
    Don't know if dental labs were aware at the time and hope they now take precautions. I know a guy with a touch of asbestosis because he
    machined it without a mask. He knew the dust was a problem but took his operation outdoors figuring the dust would blow away.

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  • From Vaughn Simon@21:1/5 to Frank on Thu Mar 8 13:29:39 2018
    On 3/7/2018 9:28 AM, Frank wrote:
    Sorry to hear about your loss.
    I'm a retired chemist but had never heard about this problem.
    Something as simple as a dust mask would have probably prevented it.
    Don't know if dental labs were aware at the time and hope they now take precautions. I know a guy with a touch of asbestosis because he
    machined it without a mask. He knew the dust was a problem but took his operation outdoors figuring the dust would blow away.

    Actually paper dust masks aren't protective against beryllium.
    Unfortunately machining and polishing beryllium tends to make very tiny particles that pass right through a paper mask. I share your hope, but
    based on my experience I wouldn't bet on dental labs either being aware
    of the problem or taking appropriate precautions to protect their employees.

    OSHA did send a Hazard Warning Bulletin around to dental labs, and it specifically mentioned Margaret's case, but it's likely long forgotten
    by the industry after all these years.

    https://www.osha.gov/dts/hib/hib_data/hib20020419.html

    Vaughn

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  • From Frank@21:1/5 to Vaughn Simon on Thu Mar 8 15:42:58 2018
    On 3/8/2018 1:29 PM, Vaughn Simon wrote:
    On 3/7/2018 9:28 AM, Frank wrote:
    Sorry to hear about your loss.
    I'm a retired chemist but had never heard about this problem.
    Something as simple as a dust mask would have probably prevented it.
    Don't know if dental labs were aware at the time and hope they now take precautions.  I know a guy with a touch of asbestosis because he
    machined it without a mask.  He knew the dust was a problem but took his operation outdoors figuring the dust would blow away.

    Actually paper dust masks aren't protective against beryllium.
    Unfortunately machining and polishing beryllium tends to make very tiny particles that pass right through a paper mask.  I share your hope, but based on my experience I wouldn't bet on dental labs either being aware
    of the problem or taking appropriate precautions to protect their
    employees.

    OSHA did send a Hazard Warning Bulletin around to dental labs, and it specifically mentioned Margaret's case, but it's likely long forgotten
    by the industry after all these years.

    https://www.osha.gov/dts/hib/hib_data/hib20020419.html

    Vaughn

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    That is an extremely low exposure level and positive air respirator
    would solve problem. I would confine the work to being done in a glove
    box where there would be no exposure.

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  • From Steven Bornfeld@21:1/5 to Vaughn Simon on Sun Mar 11 13:32:42 2018
    On 3/6/2018 11:51 AM, Vaughn Simon wrote:
    If there is anyone left here from the old days (I see that Stephen
    Bornfeld is still here) I was once a regular on this group.  I am the
    fellow whose wife was exposed to beryllium while working in a dental
    lab, and ended up with incurable Chronic Beryllium Disease (CBD), which ravished her lungs.

    So here is the end of our personal story: For some 20 years we made
    annual treks to the Occupational Lung Disease Clinic at National Jewish Medical Center in Denver.  Because there is a significant group of
    patients in Denver with that disease, these people are the best in the
    world for this particular disease.  From the very beginning they
    stressed that CBD is "managed" and not cured.

    We had a terrible time back in the 1990s when Margaret was going from
    doctor to doctor to find out why she had that terrible cough and why her weight was melting away.  The truth was, I thought I was losing her.
    Finally she ended up with a local pulmonologist, who suspected an occupational origin to Margaret's disease.  That's when he started
    asking us about what metals Margaret worked with on her job.  Beryllium
    was an ingredient in certain of those dental alloys, and she ultimately tested positive for Beryllium disease.

    With proper treatment, what followed was two decades of acceptable
    health, followed by an inevitable decline.

    A few weeks ago I lost her after 43 years of happy marriage.  What ultimately killed her was a combination of CBD and the complications
    that go with living with chronic lung disease.  Still, I will be forever grateful for those extra two decades of life that medical science gave
    to Margaret.



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    Vaughn--

    I am sorry to hear of Margaret's passing. For what it's worth, I do
    think techs are more aware of beryllium disease these days, and the
    history of occupational exposure and disease is the reason for increased awareness. In the current anti-regulatory atmosphere, we'll have to be vigilant to protect people in the industry.
    I hope you and the rest of your family are well.

    Take care,
    Steve

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  • From John Forkosh@21:1/5 to Steven Bornfeld on Mon Mar 12 05:12:00 2018
    Steven Bornfeld <dentaltwinmung@earthlink.net> wrote:
    On 3/6/2018 11:51 AM, Vaughn Simon wrote:
    If there is anyone left here from the old days (I see that Stephen
    Bornfeld is still here) I was once a regular on this group. I am the
    fellow whose wife was exposed to beryllium while working in a dental
    lab, and ended up with incurable Chronic Beryllium Disease (CBD), which
    ravished her lungs.

    So here is the end of our personal story: For some 20 years we made
    annual treks to the Occupational Lung Disease Clinic at National Jewish
    Medical Center in Denver. Because there is a significant group of
    patients in Denver with that disease, these people are the best in the
    world for this particular disease. From the very beginning they
    stressed that CBD is "managed" and not cured.

    We had a terrible time back in the 1990s when Margaret was going from
    doctor to doctor to find out why she had that terrible cough and why her
    weight was melting away. The truth was, I thought I was losing her.
    Finally she ended up with a local pulmonologist, who suspected an
    occupational origin to Margaret's disease. That's when he started
    asking us about what metals Margaret worked with on her job. Beryllium
    was an ingredient in certain of those dental alloys, and she ultimately
    tested positive for Beryllium disease.

    With proper treatment, what followed was two decades of acceptable
    health, followed by an inevitable decline.

    A few weeks ago I lost her after 43 years of happy marriage. What
    ultimately killed her was a combination of CBD and the complications
    that go with living with chronic lung disease. Still, I will be forever
    grateful for those extra two decades of life that medical science gave
    to Margaret.
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    Vaughn--

    I am sorry to hear of Margaret's passing. For what it's worth, I do
    think techs are more aware of beryllium disease these days, and the
    history of occupational exposure and disease is the reason for increased awareness. In the current anti-regulatory atmosphere, we'll have to be vigilant to protect people in the industry.
    I hope you and the rest of your family are well.

    Take care,
    Steve

    Any possible link with ipf, as per this ominous March 10 article?,
    "Dentists keep dying of this lung disease. The CDC can't figure out why." long url follows...,

    https://www.washingtonpost.com/news/to-your-health/wp/2018/03/10/dentists-keep-dying-of-this-deadly-lung-disease-the-cdc-cant-figure-out-why/

    I'm not googling any cbd/ipf link, but coincidentally reading this
    thread (sorry to hear about your loss, Vaughn) just made me speculate.
    --
    John Forkosh ( mailto: j@f.com where j=john and f=forkosh )

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  • From Vaughn Simon@21:1/5 to John Forkosh on Mon Mar 12 11:00:25 2018
    On 3/12/2018 1:12 AM, John Forkosh wrote:
    Any possible link with ipf, as per this ominous March 10 article?,
    "Dentists keep dying of this lung disease. The CDC can't figure out why." long url follows...,

    https://www.washingtonpost.com/news/to-your-health/wp/2018/03/10/dentists-keep-dying-of-this-deadly-lung-disease-the-cdc-cant-figure-out-why/

    John I saw that article a few days ago, and my totally unscientific
    opinion is that there are so many possible causes for that unfortunate
    lung disease, that there is no special reason to suspect beryllium in
    these cases (nor any reason to reject it).

    First, the cause could be either a substance or a microorganism (or even
    both). Dental professionals work with a variety of substances, some
    quite exotic. They cut, grind, cast and polish these substances, all of
    which release fumes and particles into the air, where the worker can't
    help but to inhale them. Paper masks are common, but not always protective.

    In occupational lung disease, the delay between exposure and the
    appearance of symptoms can be decades. That delay incredibly
    complicates pinpointing the cause of any patient's disease. In
    Margaret's case there was a specific laboratory test for beryllium, but
    there are few other possible occupational lung disease causes that can
    be so specifically detected in a patient.

    So that leaves us with statistics. Statistics can establish a
    correlation between a cause and a disease, but not a specific cause for
    a specific patient.

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  • From Steven Bornfeld@21:1/5 to John Forkosh on Mon Mar 12 11:22:49 2018
    On 3/12/2018 1:12 AM, John Forkosh wrote:>
    Any possible link with ipf, as per this ominous March 10 article?,
    "Dentists keep dying of this lung disease. The CDC can't figure out why." long url follows...,

    https://www.washingtonpost.com/news/to-your-health/wp/2018/03/10/dentists-keep-dying-of-this-deadly-lung-disease-the-cdc-cant-figure-out-why/

    I'm not googling any cbd/ipf link, but coincidentally reading this
    thread (sorry to hear about your loss, Vaughn) just made me speculate.


    John--

    I couldn't rule it out, and I don't know how the clinical and
    microscopic picture of cbd compares to ipf. Of course the "I" in IPF is "idiopathic", so if there's a link it apparently hasn't been discovered yet.
    I saw that paper cited in Medpage Today, but I haven't read the source
    paper. Personally I've not heard of IPF as a major cause of disability
    and death in dentists before this paper.
    As far as beryllium is concerned, I'm sure that the issue is far greater
    among lab technicians using it than among dentists and other dental
    personnel

    Steve

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  • From Steven Bornfeld@21:1/5 to Steven Bornfeld on Mon Mar 12 12:33:41 2018
    On 3/12/2018 11:22 AM, Steven Bornfeld wrote:
    On 3/12/2018 1:12 AM, John Forkosh wrote:>
    Any possible link with ipf, as per this ominous March 10 article?,
       "Dentists keep dying of this lung disease. The CDC can't figure out
    why."
    long url follows...,

    https://www.washingtonpost.com/news/to-your-health/wp/2018/03/10/dentists-keep-dying-of-this-deadly-lung-disease-the-cdc-cant-figure-out-why/


    I'm not googling any cbd/ipf link, but coincidentally reading this
    thread (sorry to hear about your loss, Vaughn) just made me speculate.


    John--

    I couldn't rule it out, and I don't know how the clinical and
    microscopic picture of cbd compares to ipf.  Of course the "I" in IPF is "idiopathic", so if there's a link it apparently hasn't been discovered
    yet.
    I saw that paper cited in Medpage Today, but I haven't read the source paper.  Personally I've not heard of IPF as a major cause of disability
    and death in dentists before this paper.
    As far as beryllium is concerned, I'm sure that the issue is far greater among lab technicians using it than among dentists and other dental
    personnel

    Steve

    Here's the paper, from MMWR:

    https://www.cdc.gov/mmwr/volumes/67/wr/mm6709a2.htm?s_cid=mm6709a2_w

    Steve

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  • From John Forkosh@21:1/5 to Vaughn Simon on Tue Mar 13 03:47:16 2018
    Vaughn Simon <vaughnsimon@gmail.com> wrote:
    On 3/12/2018 1:12 AM, John Forkosh wrote:
    Any possible link with ipf, as per this ominous March 10 article?,
    "Dentists keep dying of this lung disease. The CDC can't figure out why." >> long url follows...,

    https://www.washingtonpost.com/news/to-your-health/wp/2018/03/10/dentists-keep-dying-of-this-deadly-lung-disease-the-cdc-cant-figure-out-why/

    John I saw that article a few days ago, and my totally unscientific
    opinion is that there are so many possible causes for that unfortunate
    lung disease, that there is no special reason to suspect beryllium in
    these cases (nor any reason to reject it).

    Yeah, I agree, "no special reason to suspect", especially after reading
    through the mmwr paper Steve linked to, which I hadn't read originally.
    It was just the coincidence of reading your thread the day after reading
    that wp article which prompted me to follow-up with the wp url.
    Less harm posting it and being wrong, than not posting it and being right.
    And I figured Steve had the knowledge to make the distinction, and the
    standing to do something about it if warranted.

    First, the cause could be either a substance or a microorganism (or even both). Dental professionals work with a variety of substances, some
    quite exotic. They cut, grind, cast and polish these substances, all of
    which release fumes and particles into the air, where the worker can't
    help but to inhale them. Paper masks are common, but not always protective.

    In occupational lung disease, the delay between exposure and the
    appearance of symptoms can be decades. That delay incredibly
    complicates pinpointing the cause of any patient's disease. In
    Margaret's case there was a specific laboratory test for beryllium, but
    there are few other possible occupational lung disease causes that can
    be so specifically detected in a patient.

    So that leaves us with statistics. Statistics can establish a
    correlation between a cause and a disease, but not a specific cause for
    a specific patient.

    --
    John Forkosh ( mailto: j@f.com where j=john and f=forkosh )

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  • From John Forkosh@21:1/5 to Steven Bornfeld on Tue Mar 13 03:36:13 2018
    Steven Bornfeld <dentaltwinmung@earthlink.net> wrote:
    On 3/12/2018 11:22 AM, Steven Bornfeld wrote:
    On 3/12/2018 1:12 AM, John Forkosh wrote:>
    Any possible link with ipf, as per this ominous March 10 article?,
    "Dentists keep dying of this lung disease. The CDC can't figure out why." >>> long url follows...,

    https://www.washingtonpost.com/news/to-your-health/wp/2018/03/10/dentists-keep-dying-of-this-deadly-lung-disease-the-cdc-cant-figure-out-why/

    I'm not googling any cbd/ipf link, but coincidentally reading this
    thread (sorry to hear about your loss, Vaughn) just made me speculate.

    John--

    I couldn't rule it out, and I don't know how the clinical and
    microscopic picture of cbd compares to ipf. Of course the "I" in IPF is
    "idiopathic", so if there's a link it apparently hasn't been discovered yet. >> I saw that paper cited in Medpage Today, but I haven't read the source
    paper. Personally I've not heard of IPF as a major cause of disability
    and death in dentists before this paper.
    As far as beryllium is concerned, I'm sure that the issue is far greater
    among lab technicians using it than among dentists and other dental
    personnel
    Steve

    Here's the paper, from MMWR:
    https://www.cdc.gov/mmwr/volumes/67/wr/mm6709a2.htm?s_cid=mm6709a2_w
    Steve

    Thanks, Steve. Yeah, I'd noticed that link in the wp article, but hadn't clicked through to it until you mentioned it again above. Seems like
    they've already got more suspected causes than you can shake a stick at.
    So I guess any possible beryllium connection is probably very weak,
    or non-existent, compared with all those other causes. And, anyway,
    while their 894 ipf patient sample is probably adequate for most
    statistical tests, the 8+1=9 dental subsample might not be. For example,
    31% of US dentists are female (according to the link below), but 0 in the sample. So the wp's statement that dentists are "23 times more likely
    to have IPF" may also not be justifiable by that sample alone.
    There are quantitative calculations for statistically significant sample
    sizes, depending on which kind of test you're applying to your data,
    but I'm not off-hand familiar with them.

    Tangentially, by the way, I checked wp's "23x more likely" -- according to

    https://www.ada.org/en/science-research/health-policy-institute/dental-statistics/workforce

    "there are 61.0 dentists working in dentistry per 100,000 U.S. population". Then together with the mmwr's sample where "dentists=1% of ipf patients", that's 16x more likely rather than 23x. Actually, I'd imagined there'd
    be way more dentists, whereby way less than even 16x, which is what prompted
    me to double-check. So dentists treat 1650 patients on average (I'd have guessed way less)?
    --
    John Forkosh ( mailto: j@f.com where j=john and f=forkosh )

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  • From Steven Bornfeld@21:1/5 to John Forkosh on Tue Mar 13 12:32:28 2018
    On 3/12/2018 11:36 PM, John Forkosh wrote:
    Steven Bornfeld <dentaltwinmung@earthlink.net> wrote:
    Steve

    Thanks, Steve. Yeah, I'd noticed that link in the wp article, but hadn't clicked through to it until you mentioned it again above. Seems like
    they've already got more suspected causes than you can shake a stick at.
    So I guess any possible beryllium connection is probably very weak,
    or non-existent, compared with all those other causes. And, anyway,
    while their 894 ipf patient sample is probably adequate for most
    statistical tests, the 8+1=9 dental subsample might not be. For example,
    31% of US dentists are female (according to the link below), but 0 in the sample. So the wp's statement that dentists are "23 times more likely
    to have IPF" may also not be justifiable by that sample alone.
    There are quantitative calculations for statistically significant sample sizes, depending on which kind of test you're applying to your data,
    but I'm not off-hand familiar with them.

    Tangentially, by the way, I checked wp's "23x more likely" -- according to

    https://www.ada.org/en/science-research/health-policy-institute/dental-statistics/workforce

    "there are 61.0 dentists working in dentistry per 100,000 U.S. population". Then together with the mmwr's sample where "dentists=1% of ipf patients", that's 16x more likely rather than 23x. Actually, I'd imagined there'd
    be way more dentists, whereby way less than even 16x, which is what prompted me to double-check. So dentists treat 1650 patients on average (I'd have guessed way less)?


    There are plenty of statistical problems with putting too much stock in
    this report, if you're trying to draw conclusions about dentists
    generally from this one population in Virginia. So I see it as a signal
    that further investigation may be warranted, and nothing more.


    Steve

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