Forums Laser Treatment Tips and Techniques Hard Tissue Procedures Pulsed Nd:YAG for Multiple Hard tissue uses

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  • #3489 Reply

    Robert Gregg
    Participant

    No reason to buy a pulsed Nd:YAG for the following reasons, but if you have one, here’s how you can use it for selctive removal of hard tissue components.

    melinda1.jpg

    Pulsed Nd:YAGs with high peak powers of 3000 watts per pulse at 100 usec and 10 Hz are highly absorbed in calcium containing hard tissue and pigmented decay.

    melinda2.jpg

    Very nice selective removal of dentinal debris, (without water or air, and defocused at a distance of 4-6 mm.

    melinda3.jpg

    Yeah, I saw the fracture line on the DL. And so would the pulsed Nd:YAG too–see the next image for an even better demo of that through enamel and dentin.

    melinda4.jpg

    I don’t have the greatest cleave in the world, but I do have a very high energy density to transmitt through enamel and reach dentin on the other side with enough intensity to have absorption on decay on the other side.

    melinda5.jpg

    Self explanatory

    melinda6.jpg

    Almost ready for impression for IPS-EMPRESS after I remove the decalcified enamel on the mesial and the fracture line on the DL margin[/b]

    This making any sense to anyone??

    Bob

    #11755 Reply

    ASI
    Spectator

    Hi Bob,

    Interesting application for hard tissue procedure.

    Thanks for sharing again.

    Andrew

    #11756 Reply

    Robert Gregg DDS
    Spectator

    Thanks Andrew!

    Just fun stuff we’ve used our pulsed neodymiums over the years.

    They are complimentary to erbiums in that they can be diagnostic in many ways on hard tissue and then an erbium can be used for ablation of diseased or damaged enamel and dentin.

    I’ll post an example of this idea later today…..

    Bob

    #11754 Reply

    Bob – Was the patient anesthetized for this?

    #11757 Reply

    Robert Gregg DDS
    Spectator

    Hi Kelly,

    Yes, the patient was anesthetized.

    I’ve left the camp of trying to do a lot of laser tx w/o anesthesia. After a few years of trying to make it happen, I found it was easier, faster, better for me to numb them up and get the job done ASAP. Especially when I have lots of stuff going on like I do.

    Bob

    #11758 Reply

    Swpmn
    Spectator

    Well that sure is an interesting comment from someone who’s been doing this a long time!!!!!

    I pretty much left the same camp about 18 months ago but I’m still studying, listening, reading and thinking!

    Al

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