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dave
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 Posted: Thu Nov 20, 2008 3:48 pm Post subject: Two naive questions about crowns |
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Hi, I had a crown break 4 days ago and have had a temporary one fitted
pending the work to get a replacement.
Q1: Are there any particular allergic risks to the cement used or to
the material of the temporary crown? (I have suddenly developed a sore
throat and can taste a mild "soapy" taste in my mouth.
(History: I *am* rather sensitive to "chemicals" (I can get severe
nerve pains from aerosol vapour for eg). Am I right in thinking there
is no amalgam used in the cement for crown fixing?
Q2: I have 3 crowns in all and they are over 20 years old. Need these
be replaced even though they see ok to me (The broken one was my fault
- biting into a hazel nut and teeth clashed (ouch!). My previous
dentist did mention some time ago "looking at replacing them - but
didn>t say why at the time - and he has since retired
Thanks (more that 2 questions it seems)! |
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Steven Bornfeld
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| Posted: Thu Nov 20, 2008 7:48 pm Post subject: Re: Two naive questions about crowns |
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dave wrote:
[quote]Hi, I had a crown break 4 days ago and have had a temporary one fitted
pending the work to get a replacement.
Q1: Are there any particular allergic risks to the cement used or to
the material of the temporary crown? (I have suddenly developed a sore
throat and can taste a mild "soapy" taste in my mouth.
(History: I *am* rather sensitive to "chemicals" (I can get severe
nerve pains from aerosol vapour for eg). Am I right in thinking there
is no amalgam used in the cement for crown fixing?
Q2: I have 3 crowns in all and they are over 20 years old. Need these
be replaced even though they see ok to me (The broken one was my fault
- biting into a hazel nut and teeth clashed (ouch!). My previous
dentist did mention some time ago "looking at replacing them - but
didn>t say why at the time - and he has since retired
Thanks (more that 2 questions it seems)!
[/quote]
Not naive. Most temporary cements contain eugenol (equivalent to oil
of cloves). I can>t say I>ve seen a lot of sensitivity to it, but
certainly anything>s possible. Furthermore, most temporary crowns are
fabricated from some form of acrylic plastic. Certainly any free
monomer may be irritating to some people.
The temporary cement and/ or any free monomer can cause the taste. If
the temporary isn>t smooth it may promote food implaction which also has
potential to cause bad tastes.
It is not unusual to irritate the gumline in the course of preparing
and impressioning the tooth itself, so soreness here may be due to
mechanical as well as chemical trauma. It should heal in a few days if
this is the case. If this is a lower molar this can sometimes be
confused with a sore throat.
There is obviously no way for me to know if I would make the same
decisions with regard to replacing the crowns. But you deserve to know
WHY they are being replaced, in language you can understand.
Steve |
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dave
Guest
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| Posted: Fri Nov 21, 2008 5:47 am Post subject: Re: Two naive questions about crowns |
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On Thu, 20 Nov 2008 08:48:24 -0500, Steven Bornfeld
<dentaltwinmung@earthlink.net> wrote:
[quote]Most temporary cements contain eugenol (equivalent to oil
of cloves). I can>t say I>ve seen a lot of sensitivity to it, but
certainly anything>s possible. Furthermore, most temporary crowns are
fabricated from some form of acrylic plastic. Certainly any free
monomer may be irritating to some people.
The temporary cement and/ or any free monomer can cause the taste. If
the temporary isn>t smooth it may promote food implaction which also has
potential to cause bad tastes.
It is not unusual to irritate the gumline in the course of preparing
and impressioning the tooth itself, so soreness here may be due to
mechanical as well as chemical trauma. It should heal in a few days if
this is the case. If this is a lower molar this can sometimes be
confused with a sore throat.
There is obviously no way for me to know if I would make the same
decisions with regard to replacing the crowns. But you deserve to know
WHY they are being replaced, in language you can understand.
Steve
[/quote]
Thanks Steve. I take it the actual crowns are made of some material
that does not have these free monomers? - As the ones I>ve had for
years have been no problem at all. |
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Steven Bornfeld
Guest
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| Posted: Fri Nov 21, 2008 8:31 am Post subject: Re: Two naive questions about crowns |
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dave wrote:
[quote]On Thu, 20 Nov 2008 08:48:24 -0500, Steven Bornfeld
dentaltwinmung@earthlink.net> wrote:
Most temporary cements contain eugenol (equivalent to oil
of cloves). I can>t say I>ve seen a lot of sensitivity to it, but
certainly anything>s possible. Furthermore, most temporary crowns are
fabricated from some form of acrylic plastic. Certainly any free
monomer may be irritating to some people.
The temporary cement and/ or any free monomer can cause the taste. If
the temporary isn>t smooth it may promote food implaction which also has
potential to cause bad tastes.
It is not unusual to irritate the gumline in the course of preparing
and impressioning the tooth itself, so soreness here may be due to
mechanical as well as chemical trauma. It should heal in a few days if
this is the case. If this is a lower molar this can sometimes be
confused with a sore throat.
There is obviously no way for me to know if I would make the same
decisions with regard to replacing the crowns. But you deserve to know
WHY they are being replaced, in language you can understand.
Steve
Thanks Steve. I take it the actual crowns are made of some material
that does not have these free monomers? - As the ones I>ve had for
years have been no problem at all.
[/quote]
No free monomers--no one>s used acrylic for permanent crowns in a long time.
Steve |
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