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dkimmelSpectatorLooks like I need to do a Paul Harvey.
These are CoreVents that where placed in 1980. You are correct in that they are not fully seated. Some local wonder did the restorative work. Since they are Corevents from 1980–the abutments are cemented in place.. Very little chance of getting them out at this stage. Everything is rather high and dry at his point and even with LANAP this is a rather questional prognosis. She is 56 and just had a heart attack in Jan. Very nice school teacher with limited $$$. I am afriad that the implants are the least of her dental problems.We have a bridge on the lower left that is about to fall off and another bridge on the upper right that is placed on half of the tooth because the rest was sub crestal…..
My thoughts are to stablize the lower right for as long as possible until we can get her undercontrol…
Dentistry in the real world is so much fun…
Dr S ParkerSpectatorI am very much impressed by the comments and desire of so many to concentrate on the positives of laser dentistry. I take the need to “move forward with the times” seriously. I shall be meeting with the conference chair ans scientific sessions chair this week-end and I shall press them on the hopes of visible improvements.
Any invitation to dinner is too good to miss – I guess I’ll have to try and earn it! Thank you all for helping me to see the situation more clearly. Kind regards, Steven
jklineSpectatorJust my two cents everybody: my Delight laser is gathering dust and is used only for the odd soft-tissue procedure (it’s pretty crappy with that also– I should have bought a diode). Major buyers remorse. I’d even sell it if somebody would offer me ษk. The only benefit of my Delight purchase is that it taught me about how far I can drill into different teeth with a fast and slow speed handpiece, especially decid. teeth before the patient feels anything. My unscientifically grounded opinion is that laser anesthesia is company hype and total BS, but I’m perfectly willing to be proven wrong, and am so willing to admit I’m wrong I’m not even going to debate the issue. FWIW, Rod Kurthy agrees with me on this issue. As I probably won’t lurk the forums for another 6 months, send hate mail to [email=”jkline@turbonet.com.”]jkline@turbonet.com.[/email]
Regards all,
Lee AllenSpectatorGlenn,
I am revisiting this post because I have done some (dozen or so) crown lenghtening using the open technique, and while I enjoy the results find that it is so time consuming, I am beginning to wonder if there are some shortcuts. Any tips that you have run across?
I like the “fat” tip for osseous even though it takes more water to make less charring, which if it occures relates to post op pain, but it is very slow. How high can an Erbium power density go and still be atraumatic?
Is the angle significant? I am beginning to think that it is in addition to the parallel to the root concept. Perpendicular to the boney surface seems to work well but in a tiny area. Slow slug (slimy giant snail without shell for those not bless with these garden creatures) march across the osseous area to reduce then becomes the working mode. An angular approach is necessary when feathering out the reduction further under the flap (I use a periosteal elevator wide end to protect the flap and reflect and stray beams) and it goes even slower.
My conclusion is that I need different calculations on power settings for my tips or different tips. I refuse to change machines, so do not even go there. I am using the S and C series tips for the Waterlase “Classic”.
Any thoughts on power settings in Watts? I converted your settings by watts=mjoules*Hz.
doctorbruSpectatorDavid,
Thanks for posting this case.
What are your thoughts on how you plan to stabilize her ? Are you going to try the LANAP ? If so, what differences will you be thinking about using the protocol on implant vs natural teeth ? Will you be probing around the implant, firing the laser near the surface-what effect on the titanium would you expect?Can you clean the titanium? Would you use the piezo or hand scalers on the titanium surface ?
Sorry David for so many questions. I have several patients with similar problems and would like to know if I will be able to help them. I have zero experience with saving failing implants- usually refer them to the oral surgeon.
Bruce
AnonymousSpectatorThought you guys might find this useful-
J Oral Maxillofac Surg. 2005 Oct;63(10):1522-7. Related Articles, LinksSurface properties of endosseous dental implants after NdYAG and CO2 laser treatment at various energies.
Park CY, Kim SG, Kim MD, Eom TG, Yoon JH, Ahn SG.
Department of Oral and Maxillofacial Surgery, Oral Biology Research Institute, College of Dentistry, Chosun University, 421 SeoSeogDong, GwangJu City 501-825, Korea.
OBJECTIVES: Dental lasers have been used for uncovering submerged implants as well as decontaminating implant surfaces when treating peri-implantitis. The objective of this study was to compare the possible alterations of the smooth surface and resorbable blast material (RBM) surface implants after using NdYAG and CO(2) lasers at various energies. MATERIALS AND METHODS: Ten smooth surface implants and 10 RBM surface implants were used. Two smooth surface implants and 2 RBM surface implants served as a control group that was not lased. The remaining implants were treated using NdYAG and CO(2) lasers. The surface of each implant was treated for 10 seconds on the second and third threads. The smooth surface implants (group 1) were treated using a pulsed contact NdYAG laser at power settings of 1, 2, 3.5, and 5 W, which are commonly used for soft tissue surgery; the corresponding energy and frequency were 50 mJ and 20 Hz, 100 mJ and 20 Hz, 350 mJ and 10 Hz, and 250 mJ and 20 Hz, respectively. The group 2 RBM implants were treated using a pulsed contact NdYAG laser. The group 3 smooth surface implants were treated using a pulsed wave non-contact CO(2) laser at 1, 2, 3.5, and 5 W, and the group 4 RBM implants were treated using a pulsed wave non-contact CO(2) laser. Data were analyzed using scanning electron microscopy. RESULTS: The control surface was very regular and smooth. After NdYAG laser treatment, the implant surface showed alterations of all the surfaces. The amount of damage was proportional to the power. A remarkable finding was the similarity of the lased areas on the smooth and RBM surfaces. CO(2) laser at power settings of 1.0 or 2.0 W did not alter the implant surface, regardless of implant type. At settings of 3.5 and 5 W, there was destruction of the micromachined groove and gas formation. CONCLUSION: This study supports that CO(2) laser treatment appears more useful than NdYAG laser treatment and CO(2) laser does not damage titanium implant surface, which should be of value when uncovering submerged implants and treating peri-implantitis.
Note “contact”. Seems to indicate that, like endo, a distance from the target(4mm?) should be respected, as well as the angle. Bob, thoughts?
Keith AlvarezSpectatorI am looking to buy my first laser. Looking to mainly use for soft tissue (soft tissue crown lengthening, pontic design, etc). Looking at the Diodent II by Hoya ConBio and Odyssey by Ivoclar. Any advice? Has anyone used either of these lasers? Any other lasers I should should be looking at?
Thanks,
Laser Novice
Klye ReevesSpectatorTook out #’s 2 and 4 the other day and knew pre-op that there was a good chance of oroantral communication. Both were were extracted without difficulty. But on closer examination, #2 had approx 3-4mm communication and #4 had about a 2-3mm opening. 550usec and fibrin clot sure beats gel-foam and sutures!
Saw patient one week post-op yesterday. Looking good and patient doing fine. Will continue to follow this one.
Anyone else used Nd YAG for this situation?
Glenn van AsSpectatorHi Keith and welcome to the forum and to laser dentistry.
I have both these lasers (Diodent 1 and two versions of the Ivoclar Odyssey) and they are both great. You cant go wrong with either. Both companies are great and both lasers work very well.
THe Diodent 2 allows for the fiber to be sterilized by placing the fiber in the bag and putting it in the Statim. This is not possible with the Ivoclar. It can only be cold sterilized by wiping down the fiber. For some people this is a big issue and the retractable fiber is not possible to autoclave.
For the Ivoclar, they have two versions of the laser (Odyssey and the Odyssey 2.4G). The new version which I have done alot of testing with has a remote control foot pedal and this is a cool addition in that it allows you to put the foot pedal where you want to without worry about cords. I like it alot and it works very well.
The units are both small and portable with perhaps the Ivoclar being slightly smaller. They are similar price wise and both can do what you are looking for with respect to soft tissue crown lengthening , ovate pontic design, frenectomies, crown troughing (I dont use cord ver much anymore if ever) and gingivectomies, apthous ulcer treatments etc.
Now I am partly biased in that I have received honorariums from both Hoya and will start some teaching for Ivoclar soon, so keep that in mind. I will endorse both products as being from solid companies and as solid products to you.
Other diodes that people like include the
Zap lasers
Biolase lasers (Lasersmile and Diolase products)
Opus has some diodes
There are others as well out there.Go with either the Diodent 2 or the Ivoclar product and you wont go wrong with either.
Hope that helps and for what you want to do with a laser you cant go wrong with a diode!!
Make sure that you get some training with the laser as part of the package.
Take care and welcome again….
Glenn van As
Glenn van AsSpectatorGreat thinking there as it will not only clot the area but sterilize it as well and prevent the bacterial infections that are so common with these oroantral communications.
Very neat idea………will keep that one in mind.
Cya
Glenn
Robert Gregg DDSSpectatorRon,
Don’t know the dosimetry. How long were the implants exposed and in contact? Parallel or perpendicular?
CO2 is fine, nothing wrong with FRP Nd:YAG if used properly.
Bob
mickey franklSpectatorI have the Claros diode by elexxion(http://www.elexxion.com) and find this laser to be far more advanced than the others.It has a variable pulse hence can be used more safely in perio pochets than the continous pulse versions.
It looks the business, and has great support in Germany.It has a digital control and cuts like a hot knife through butter.
I am no laser physics expert but found this laser to superior.
doctorbruSpectatorBob,
Is it correct to assume that a mostly end cutting fiber such as used on the FR:NdYag would be fine if kept parallel to the implant surface ?
Would it be prudent to wipe the tip more frequently to prevent any nonendcutting heat from building up on the fiber tip ?
Bruce
Robert Gregg DDSSpectatorOK Steven,
Sorry for not posting back sooner. Very busy week with patient care. I hope you can read and review sometime during this weekend for your board meeting considerations.
I appreciate you being open to the comments from everyone here on the LDF.
Some thoughts about ALD.
First–Del and 11 other dentists formed the first laser dental Study Club on November 9, 1988 in Detroit with Terry Myers.
The Laser Study Club was a clinical meeting with academicians playing a contributing role.
For the first several years at quarterly Study Club meetings, the meetings were clinically oriented, 1 hour presentations, with some research and scientific overview by an academician.
Now, it’s not even the other way around as clinical presentations of the sort dentists LEARN from have all but disappeared.
That needs to change drastically for the membership to be retained and ALD to grow.
There are enough scientific and research oriented laser organizations. There is:
1. The International Society for Laser Dentistry (ISLD) headed by Prof Lynn Powell.
2. The International Society for Optical Engineering (SPIE) headed up by Prof John Featherstone
3. The European Society for Laser Applications (ESOLA)What is missing is a clinical academy run by clinicians, giving the clincial members what they want and need to perform in their clinical dentistry using various lasers and techniques–not 15 minute abstracts of the esoteric and scientific research.
That’s where ALD has lost its direction and way regarding the original founding purpose of the founders. ALD should be about the clinicains NOT the academicians!
That’s why the WCLI and MDT Annual Clinician’s meeting are growing in popularity and attendance–just like the good ‘ol days of the Laser Study Club.
Second–When the Institute for Advanced LAser Dentistry (ILAD) wants to attain the prestigious recognition of ADA-CERP and AGD-PACE, there are fair and unbiased requirements and criteria that are in place that IALD must meet. But the IALD is not required to be “members” of either ADA or AGD. There is no corporate membership required to participate, nor is there individual membership to be considered.
ALD should be no different in its standards and applications. Clear and unambiguous standards that apply equally to all organizations and individuals seeking recognition for their courses.
When Del and I received our Category E certification, I made the comment that the certification should be required to be renewed every 2 years. Not implemented if even considered.
Yet, even though Del and I have our “E” status–and paid quite a bit of money for the priviledge to learn how to teach, not know laser content–we were denied ALD SP recognition for 2 consecutive years while the SP Course Provider requirements from ALD were being changed. And I would argue that our combined knowledge and understanding that we review and refine regularly together and update constantly is at least as good as the present recognized ALD SP providers.
ALD must be fair and impartial if is to be respected as an independent autonomous certifying body.
Third–Hygiene is not perio surgery. Laser curettage is not equivalent to a surgical laser assisted new attachment procedure such as Laser ANAP. To compare the two is not appropriate. Putting periodontal surgery & regeneration in a “Hygiene/Perio Track” at any ALD annual meeting is inappropriate.
A world renowned periodontal reasearcher (the kind we would have been thrilled for 15 years ago–and should be today) was placed on the 4th floor balcony at the ALD’s second day of their annual meeting, in a small room with 25 seats and no AV equipment. Ultimately the room was at maximum capacity, standing room only to hear Prof Ray Yukna. That’s how the ALD treats a prestigious guest and academician who is a luminary in the periodontal community?
Fourth–That laser use by hygienists is illegal in 18 States in the US, yet, the dominate thinking in ALD is that the best application for dental lasers in the treatment of periodontal disease is laser sulcular debridement/laser curettage/Laser Soft Tissue Managment by hygienists is a mystery??
Nothing against hygienists. But the realities of the State regulatory and political environments in the AAP are being ignored with such an approach.
Thanks for listening and your consideration!
Best regards,
Bob
Glenn van AsSpectatorHi Lee: great to hear from you again and I have some final photographs of this case that I should post if I have time.
One thing that I have found in doing open flap surgery is that I am not as gentle handling tissue as I could or should be. I also am not as good with sutures. Some of my results have been great, some pretty average. I have found that I get better results on those areas where I can do closed flap crown lengthening (I know Danny will kill me for saying that) where there is one surface on one tooth (for instance margin location for deep subgingival preps) compared to some of my open flap cases.
I have a huge amount of respect for the way Danny does surgery now because I cannot seem to get the esthetic results that he does.
As for Erbium crown lengthening open flap there are a couple of things that I do…….these are just ideas so use them as much or as little as you want.
First off it is slower than a bur so if you have a torus or something to remove you should look at cutting a trough
and then sectioning the large piece off.For crown lengthening I find that the bigger the footprint of the tip the better. I use a chisel tip that is 1200 microns by 500 microns with a ton of water and not much air. I then go to smaller tips with lower settings so as not to pluck the bone away.
I use hand instruments to smooth the bone (small spoons) and then use ultrasonic scalers around the teeth to remove fragments of tissue or bone.
Now having said this I typically am not doing large amounts of bone as it just is too slow in my hands.
Settings wise it depends on the tip and water flow.
typically
Chisel tip might be 30-40Hz and 100-150 mj so 3-4 watts.
600 micron tip 30-40 Hz and 80-100 mj (2-4 watts)
400 micron tip 30-40 Hz and 30-80 mj (1-2 watts)These are just ballpark figures and should not be relied upon for all people as I use the scope and will vary my settings alot on what I see happening at the bone site where the laser tissue interaction is taking place. Higher settings for cortical bone, lower for marrow.
Watch vertical defects so I keep moving reasonably quickly to again avoid plucking or vertical iatrogenic troughing.
As for angle ,yes it is important to vary the angle of attack to not get a vertical trough. Subtle movements changing the angle of attack and higher levels of magnfication help because it is a non tactile thing.
I know Mark Colonna has developed some C tips which have a bigger footprint (I discovered this in the brochure I just got from Biolase) and these Ctips (Colonna chisel tips) are around 1200 by 500 microns and 6mm long I think.
In any event I hope this helps but I am still playing with things and my closed flap cases sure do heal up nice.
I will post some if I get a chance after November 3-5th when the AMED meeting is over.
Glenn
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