MTA carrier and surgery
From: Bob Krauss
Sent: Tuesday, April 03, 2001 9:25 AM
Subject:MTA carrier and surgery
.....Has anyone else had a problem with MTA not setting up. I just redid
a surgery and when I flapped the area and curreted I was able to take a
micro explorer and go into the retroprep and literally lift out the MTA(not in one piece)
but it was "granular"? Would appreciate any feedback as this is
first time in many cases. - Best Regards Bob Krauss
Bob: The exact same thing has hapenned to me in one case. MTA granular
obviously not set up upon resurgerizing). I even mentioned it to John
Stropko. He looked at me....funny (he >was thinking ... you used it wrong
dummy) but said nothing ....gentleman that he is.
To tell you the truth I sometimes feel nostalgic about
amalgam retrofills. Never was enthusiastic about EBA or IRM
I have not used Optibond or Retroplast but I have been impressed by Peter
C. 's cases and of course Gary's. - Ben
From: "Peter D. Cancellier, DDS"
Sent: Tuesday, April 03, 2001 4:18 PM
Yes, I have had the same problem on two occasions. I presented one of them at
the AAE. It may have been that I was using some from a film canister given to
me before Tulsa started selling it or there is the infection concept. For me,
I only use it if I can not get a blood-free retroprep which is very rare. It
is a frustrating material because I like to rinse the crypt and stimulate
bleeding before closing and I worry that the MTA will ooze out. You can't
wipe the root-end without ditching the MTA.
Don't feel bad. You are not the only one disappointed with the material in
root-end situations. - Peter
From: Guido Costa
Sent: Wednesday, April 04, 2001 03 06
Did you see the Navy's table clinic in which they are applying Capsept over
the MTA? I've not done it yet,but it is a good idea. - Guido
From: benschein
Sent: Wednesday, April 04, 2001 03 22
Those Navy Endodontists are smart!!!!
As you know MTA has the same components as Portland Cement. Guess what they
put in Portland cement to accelerate setting?.......... Lime. What is
Lime? Here is a pargraph on lime in the internet
Lime may be sold as calcium hydroxide or calcium oxide,
and we have been asked if both compounds can be used in
pickle recipes calling for lime as a crispening agent.
These two compounds can be used interchangeably as long as the package is
clearly labeled hydrated, slaked, builder's,
or household lime. Neither compound should be used if the
package is labeled agricultural, burnt, or quick lime. By
using up-to-date recipes and high-quality ingredients, firm
crisp pickles can be made without the use of lime.
Make your own conclusions......
From: I. Blake McKinley, Jr.
Sent: Wednesday, April 04, 2001 04 24
Ben, you absolutely amaze me with where you come up with information. I
wonder what the concentration differences are between the lime for pickling
and the calcium hydroxide we use. - Blake Jr
From: Yosef Nahmias
Sent: Tuesday, April 03, 2001 23 02
As per MTA, you got it! My thoughts on it (I have tried to get as much info from
Portland Cement for my lectures!) are, I think that as dentist, we are manipulating
the material as if it were amalgam! It is not, it has to be Hydrated MORE! I am now
hydrating mine quite a bit, little by little as I put it in place! If it is too dry,
it wont set! As a matter of fact, I do not use it for surgery! - Yosi
From: Bob Krauss
Sent: Wednesday, April 04, 2001 23 18
Ben, Sorry about being out in space. I am very careful when I use MTA and
having used it for over 3 years I do not think John needs to give me a look.
I know the material is very technique sensitive and this is the first case I
have seen this on in probably 100-150 times using the material.
I have also done some bonded retroseals using Optibond and have had very
good succes. As Peter mentioned you must have excellent control of the field
and that is something we all strive for. It seems that if we go this route we
would be sealing much better because we are "capping" the apex not just the
retroprep. My question, and it might be a good study is how the bonded
retroseal would stand up to the occlusal forces we place on a tooth? Maybe I
can get Fred interested to try this as a study and then see if it affects
leakage. Best Regards, Bob
MTA carrier and surgery From: Bob Krauss Sent: Tuesday, April 03, 2001 9:25 AM Subject:MTA carrier and surgery .....Has anyone else had a problem with MTA not setting up. I just redid a surgery and when I flapped the area and curreted I was able to take a micro explorer and go into the retroprep and literally lift out the MTA(not in one piece) but it was "granular"? Would appreciate any feedback as this is first time in many cases. - Best Regards Bob Krauss Bob: The exact same thing has hapenned to me in one case. MTA granular obviously not set up upon resurgerizing). I even mentioned it to John Stropko. He looked at me....funny (he >was thinking ... you used it wrong dummy) but said nothing ....gentleman that he is. To tell you the truth I sometimes feel nostalgic about amalgam retrofills. Never was enthusiastic about EBA or IRM I have not used Optibond or Retroplast but I have been impressed by Peter C. 's cases and of course Gary's. - Ben From: "Peter D. Cancellier, DDS" Sent: Tuesday, April 03, 2001 4:18 PM Yes, I have had the same problem on two occasions. I presented one of them at the AAE. It may have been that I was using some from a film canister given to me before Tulsa started selling it or there is the infection concept. For me, I only use it if I can not get a blood-free retroprep which is very rare. It is a frustrating material because I like to rinse the crypt and stimulate bleeding before closing and I worry that the MTA will ooze out. You can't wipe the root-end without ditching the MTA. Don't feel bad. You are not the only one disappointed with the material in root-end situations. - Peter From: Guido Costa Sent: Wednesday, April 04, 2001 03 06 Did you see the Navy's table clinic in which they are applying Capsept over the MTA? I've not done it yet,but it is a good idea. - Guido From: benschein Sent: Wednesday, April 04, 2001 03 22 Those Navy Endodontists are smart!!!! As you know MTA has the same components as Portland Cement. Guess what they put in Portland cement to accelerate setting?.......... Lime. What is Lime? Here is a pargraph on lime in the internet Lime may be sold as calcium hydroxide or calcium oxide, and we have been asked if both compounds can be used in pickle recipes calling for lime as a crispening agent. These two compounds can be used interchangeably as long as the package is clearly labeled hydrated, slaked, builder's, or household lime. Neither compound should be used if the package is labeled agricultural, burnt, or quick lime. By using up-to-date recipes and high-quality ingredients, firm crisp pickles can be made without the use of lime. Make your own conclusions...... From: I. Blake McKinley, Jr. Sent: Wednesday, April 04, 2001 04 24 Ben, you absolutely amaze me with where you come up with information. I wonder what the concentration differences are between the lime for pickling and the calcium hydroxide we use. - Blake Jr From: Yosef Nahmias Sent: Tuesday, April 03, 2001 23 02 As per MTA, you got it! My thoughts on it (I have tried to get as much info from Portland Cement for my lectures!) are, I think that as dentist, we are manipulating the material as if it were amalgam! It is not, it has to be Hydrated MORE! I am now hydrating mine quite a bit, little by little as I put it in place! If it is too dry, it wont set! As a matter of fact, I do not use it for surgery! - Yosi From: Bob Krauss Sent: Wednesday, April 04, 2001 23 18 Ben, Sorry about being out in space. I am very careful when I use MTA and having used it for over 3 years I do not think John needs to give me a look. I know the material is very technique sensitive and this is the first case I have seen this on in probably 100-150 times using the material. I have also done some bonded retroseals using Optibond and have had very good succes. As Peter mentioned you must have excellent control of the field and that is something we all strive for. It seems that if we go this route we would be sealing much better because we are "capping" the apex not just the retroprep. My question, and it might be a good study is how the bonded retroseal would stand up to the occlusal forces we place on a tooth? Maybe I can get Fred interested to try this as a study and then see if it affects leakage. Best Regards, Bob
