Forums › Laser Treatment Tips and Techniques › Hard Tissue Procedures › Pulsed Nd:YAG for Dentin & Decay Removal
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AnonymousInactiveBob, This is a great series of photos that show what we have been doing with the Nd:YAG for many years. New technology not only allows us to see well but to show others what we see. Great post!
SwpmnSpectatorThat’s pretty darn cool. You showed me this on extracted teeth in Anaheim.
How does the 1064nm FR Nd:YAG affect the pulp on vital teeth? Doesn’t the energy penetrate much deeper than my 2780 Er,Cr:YSGG? Did you select a short Pulse Duration in this case to prevent pulpal damage?
Is the fiber in contact with the dentin/caries? Is it possible or would there be any advantages to using a water spray with the FR Nd:YAG?
Al
Robert GreggParticipantHey Al,
Sorry It took me a while to see your post and Del’s–and he’s across the hall fom me, not the country like you are!
How does the 1064nm FR Nd:YAG affect the pulp on vital teeth?
No detrimental effect at all. It will have a pulpal sedation effect like what is talked about with erbiums.
Doesn’t the energy penetrate much deeper than my 2780 Er,Cr:YSGG?
The energy of the Nd:YAG will indeed penetrate much deeper than the Er, Cr:YSGG, but will be transmitted since there is little tissue that will absorb Nd:YAG in a healthy pulp.
Did you select a short Pulse Duration in this case to prevent pulpal damage?
Yes, I chose the shortest I have available to me–100 microseconds.
Is the fiber in contact with the dentin/caries?
Oh yes.
Is it possible or would there be any advantages to using a water spray with the FR Nd:YAG?
Some, but only for removing carbon deposits and keeping the plasma plume down–which causes gray plasma deposition on tooth and soft tissues nearby.
But remember that this wavelength is completely transparent to this 1.064 light and the interaction at the surface would be hindered with water or mist covering the dentin/decay.
Good questions. Thanks for asking.
Bob
SwpmnSpectatorBob:
Thanks for you help here and also with the discussion on hemostasis and pulse duration. I continue to read Manni’s book – these “technical bulletins” you are posting are quite helpful.
Al
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