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Robert Gregg DDSSpectatorDon’t forget the other dependent variable–
Pulse Duration
Pulse duration effects both the depth of absorption–via peak power changes (and vice versa).
Shorter PD, higher peak powers, more rapid heating of the irradiated volume, smaller area of lateral/forward thermal “consequences”.
Longer PD, lower peak powers, less rapid heeating of the irradiated volume, larger area of “forward/lateral thermal consequences”.
And pulse duration also effects the peak powers as they relates to Hz. Higher Hz, lower peak powers.
Just my 2 gallons of gas….American!!
Bob
SwpmnSpectatorAcknowledging I’m not the sharpest tack in the box, math on the proof confuses me. Would seem that if Average Power in both instances is the same at 4.0W yet the Repetition Rate doubles, would not that mean the Energy setting in the first example is 400mJoules while in the second is 200mJoules? I don’t understand but perhaps it doesnt matter with regard to Peak Power per Pulse.
Anyway, regardless of my misunderstanding we do observe efficient ablation of enamel/dentin/caries with an Er:YAG laser at 10Hz. In fact this has become our default setting for repetition rate. I suspect the contact tip concept is promoted to make hard tissue lasers “user-friendly” for us tactile trained dentists. Maybe this would be useful for “feeling out the bone” in the controversial Closed Flap Laser Crown Lengthening Procedure.
Al
SwpmnSpectatorCongratulations Janet!!!! Hope you and Howard are well.
I’m most interested in case selection criteria. How does one determine which patients can be treated via LPT versus when it is best to refer to the periodontist?
Please keep up informed regarding success rate with the LPT procedure.
Al
dkimmelSpectatorJanet,
I’ll second that congradulations!
Kenneth LukSpectatorHi Glenn,
Here are a few photos. I hope I still remember how to download them[img]https://www.laserdentistryforum.com/attachments/upload/Delos pic.JPG[/img][img]https://www.laserdentistryforum.com/attachments/upload/Delos pic 2.JPG[/img][img]https://www.laserdentistryforum.com/attachments/upload/Delos pic 3.JPG[/img](Edited by Kenneth Luk at 5:46 am on April 20, 2005)
Glenn van AsSpectatorLooks cool Ken and I like the diode erbium combo. Neat photos thanks for sharing……rushing off to work now.
Glenn
AlbodmdSpectatorCool looking machine. Does it have a 3.0w or 30w diode?
AlbodmdSpectatorI’ll round out the congrats from the Florida guys. Hoping to join you soon.
Robert Gregg DDSSpectatorDear Sharp-tack,
If rep rate doubles, peak powers, and pulse powers are 1/2, correct.
Bob
JanetCenturySpectatorThanks – we are very psyched. We have 2 patients scheduled now! And would have had another, but I wasn’t sure (Bob pop in here) – she’s on constant oxygen and I just had this vision of setting the nice 85 yo lady on fire – yeah, I know that’s an exaggeration and it probably would be fine, but.
My criteria is pretty much anything above 5 mm pockets. The patients we treated as part of our training had well over 8-9mm pocketing. I think I will be sending grafting patients to the periodontist.
We can’t make it for our six month Day 4 on the October date, so we’re going in November or December. Maybe you can hurry up and get yours in time to do Day 4 with us!
dkimmelSpectatorIt is a cool looking laser. I do have one major gripe with laser designers. Have these guys ever heard about ergonomics. I have yet to see a laser that was designed with proper ergononics for a dental operatory. Most of the time you have to do a class three motion just to find the place to place the handpiece much less put it back to rest.
Ok so I am a little testy tonight. Time to go home.
czeqm8SpectatorJanet, I am glad to hear that you have your first patients scheduled. I am waiting to schedule until my laser arrives. I also have several patients lined up right now who have refused traditional perio surgery. They keep asking me when the laser is going to be in. I think a couple of them are more excited that I am for delivery.
Hey swpmn, I think I am done with referal to the periodontist for surgical treatment of periodontal disease. The cases that I have seen with LANAP are amazing. Boot camp showed many cases and all were at least as good as traditional surgery with regard to bone levels. In many cases the bone was better than what I am seeing come back from the periodontist. Probings look great and the recession post surgery is nothing like it is with surgery. (Basicly, the recession is non-existent.) I see almost no need for traditional surgery. It seems barbaric to me now. I would never go through with surgery if I was the one with disease. I would choose LANAP. Therefore, I will recommend that for my patients as well.
Matt Brink
AlbodmdSpectatorCan the periolase help with areas of insufficient attached gingiva or areas that need grafting?
Robert Gregg DDSSpectatorQUOTEQuote: from Albodmd on 10:12 am on April 21, 2005
Can the periolase help with areas of insufficient attached gingiva or areas that need grafting?Hi Al,
No, not really.
Some are reporting some corornal rebound of tissue following LANAP, but no one knows how to predict or controll it….
Bob
BenchwmerSpectatorPost-op photo at 4 months.
Tooth still vital.Jeff
(Edited by Benchwmer at 11:39 am on April 21, 2005)
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