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AnonymousSpectator“Morphological and Compositional Changes of Human Dentin after er:YAG Laser Irradiation”
Koukichi Matsumoto,Mozammal Hossain,….
Volume 3 Number 1
Spring 2003 page 17 under discussion
Glenn van AsSpectatorYes , Mark I come back on Saturday afternoon (early evening) so I wont be back until then.
WE will have to get together next time you are here.
Make sure you give me some advance notice…….hopefully you get alot of people for the lecture.
There was a laser lecture last week here, one this week with you and one next week for me.
Lots of laser material.
Cya
Glenn
Glenn van AsSpectatorBob I tried to edit the laker girls tshirts to say LASER…..but I got too tired to do it………
Maybe I still will and get a laugh out of it……..
Great pic andrew……..god that suit attracts them doesnt it!!
Grin
Cya
Glenn
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
ASISpectatorHi Bob,
Anyone would look half decent when accompanied with such eye candy support. You know how it is when an ordinary picture looks better in an attractive frame? Good thing those LA Lasers(Lakers) gals had me to bring out the beauty in them.
Seriously, you are too kind in your praise. But certainly not so in your praise for Glenn though. Mind you, you are not too shabby yourself. You are just a walking encyclopedia of laser physics and clinical application.
Best regards,
Andrew
SwpmnSpectator[img]https://www.laserdentistryforum.com/attachments/upload/williamsa051903.JPG[/img]
From the Lightning Capital of North America(my front yard)
May 19, 2003Al
ASISpectatorHi Al,
Wow! And no charring too. I guess you don’t sit underneath your trees much as a habit.
How can we harvest this energy from the active medium? It will be great to keep this as a silver bullet for that one procedure when nothing works.
Best regards.
Andrew
AnonymousInactiveI look at the pictures and know this is great fun learning all these new methods. This is such a tremendous forum to share on.
I have found that the difference in wavelength (and therefore the tissue interaction) of the laser made a significant difference in the removal of a fibroma as you have presented. With regards to the depth of the cut you make – the fibroma should be the determining factor. With the erbium or the Diode you must decide where you will make your cut. Many times the tissue will feel the same and it is hard to differentiate what you’re removing from tissue you wish to keep. I also see this dilemma in the questions that are posed. With the FR Nd:YAG used in a selective ablation mode these tissues are recognizable and are able to be distinguished one from the other and separated. Thus you are able to remove the complete fibroma without sacrificing any additional tissue unnecessarily. Now that Bob has the camera and scope set up we will post the next one of these we remove – I hope he lets me use the camera!
2thlaserSpectatorHey Al,
What were the settings that were used? Any air/water? Can I use this picture?
Great stuff!
Glad you are ok, loud thunder I presume!
Mark
Robert Gregg DDSSpectatorNOPE!! uh, ah. ain’t sharin’….:biggrin:
FlashgordonSpectatorMark, Nice case! What settings did you use on the Waterlase and how long did it take to do the prep? I’ve had a Waterlase for about 1 yr. I’ve been using it at about 5+ Watts and it takes forever to cut through the enamel using the same angles, etc. Once through the enamel I power down, but it just seems to bounce off the dentin. I’m not an old techno phobic who can’t program a VCR, just frustrated. Any suggestions?
Thanks!
2thlaserSpectatorHi Flash! Welcome to the board. I start out using 5.5W, 80%air, 50%water, G-4tip. That about does it. It goes REAL fast for me. Today I did 6 class I preps in about 1/2 hour, start to finish, all around a 45-50 on the Diagnodent. Super easy. I hear people having trouble with Class I’s and I really can’t relate. I think that keeping the tip at appropriate angles, AND making sure you know how to use the defocussed and focussed modes appropriately are what is needed. Also, we have found that a 30% air/water differential is also essential to maximum ablation. Hope this helps!
Mark
2thlaserSpectatorOh, and I forgot, when I get into dentin, I usually keep the air/water the same, but power down to 2.5-3.0 W. That keeps the sesitivity down a great deal. Sometimes I might reduce the air/water, but not usually.
Mark
BenchwmerSpectatorHere is my first fibroma removal using the OpusDuoE.
10 Hz 350mJ using a 800micron tapered sapphire contact tip for less than 30 sec.
LA 2% Carbocaine w/ 1/20,000 Levordefren, tripod technique (3 drops in triangle surrounding lesion in mucosa)Before
Immediately after
Next time I’ll use a 200 or 400micron tapered tip for more focused tissue response.
Jeff
SwpmnSpectatorYeah that one was “a little too close to home” – get it? Ar, ar, arr. Actually I was in the office and we could see the hail falling.
Use the photo all you want Mark.
Al
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