Pulsed Nd:YAG for Multiple Hard tissue uses

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May 15, 2003 at 9:28 pm #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.

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.

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

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.

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.

Self explanatory

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

May 16, 2003 at 4:57 am #11755 Reply

ASI
Spectator

Hi Bob,

Interesting application for hard tissue procedure.

Thanks for sharing again.

Andrew

May 16, 2003 at 2:24 pm #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

May 26, 2003 at 11:00 pm #11754 Reply

kellyjblodgettdmd
Spectator

Bob – Was the patient anesthetized for this?

May 27, 2003 at 1:58 pm #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

May 28, 2003 at 3:41 am #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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