Yes, it’s weird Glenn, I seriously don’t have any problems with my laser. I am now in a experimental mode, doing things that should blow the fiber, and haven’t yet, and my laser is cutting as fast as ever. I can’t figure it out. Lucky I guess. When I blow the fiber, I will document what I did to do it, but so far so good.
(I have a spare!). Anyhow, hope everyone get’s back to lasering soon.
Mark

Bob, I agree with alot of what you are saying but I must respectfuly disagree with one thing…I am not talking scientifiacally now since i am am a clinician and not a scientist, clinically the waterlase is wonderful for sulucular decontamination. I have not had one perio case not improve dramatically using my waterlase. while I am not comparing it to the Periolase, as I know u guys have a great product, personally i dont value another laser investment at this time for a “soft tissue laser” wether it be a diode. Nd yag, etc since I get incredible soft tissue results virtually 100 percent of the time with my waterlase with the obvious benefit of its abilty to cut hard tissue as well….Just my 2 cents

hit them over the head with a sledge hammer?

Thanks Ron,

“I must respectfuly disagree with one thing…I am not talking scientifiacally now since i am am a clinician and not a scientist, clinically the waterlase is wonderful for sulucular decontamination.”

I appreciate that, Ron. And I appreciate your perspective.  Nice thing about this forum is we can share our different perspectives.:)

“Sulcular decontamination” (SD) is one thing.  And I completely agree with you that erbium lasers kill bugs in the perio pocket.  I have the references to show that.  No arguement there.   But sulcular decontamination is just one component of treating the periodontal pocket.  Right?  I mean, what’s the plan for the root surface acretions?  How about a stable fibrin clot?

Anyway, SD is not what was apparently represented by the sales rep according to Jeff:

“He commented that this technique is better than any other laser Perio treatment because you don’t have to use any anesthetic.”:confused:

I’m sorry, but that just isn’t true.  

Based on 12+ years of treating all types of perio using all types of techniques and lasers, there is nothing that “is better” or equal to treating periodontal disease–Case Types I-IV–as a stand alone periodontal procedure (with FDA clearance by the way) than a properly configured pulsed Nd:YAG and “LPT”.

We have the basic science, the clincial results, the retrospective, multi-center clinical data, and the human histology to make that statement.  Erbiums do not have this sort of perio science at this time.  

And that’s part of the problem I have with companies, and their sales reps when they make bold comparison claims that aren’t supported with science or even facts.  

While Del McCarthy and I spent 10 years doing the science on lasers (all types, including erbium) for periodontal disease–manufacturers of erbium lasers were developing their devices and doing the science for dedicated HARD tissue removal.  Fine!  Cool!  Great!  We’re are happy for that. :cheesy:  

Hard tissue clearance for enamel and bone removal has greatly advanced the field of laser dentistry.  So has our development and FDA clearances for perio tissue regeneration.  

But erbium device manufactuers and their sales reps should not now come along and make unsubstantiated claims that an erbium laser “is better” than those devices that actually have done the clinical and histologic research.  That’s not fair, it’s inappropriate, it’s not factual, and it may even be harmful to patients. The manufacturers need to spend the time and money that we have done, get their own data, then make their claims.  To do make exaggerated claims, false comparisons, or disparage other devices is just not going to advance the adoption of lasers in dentistry.

And with erbiums, at this time, no one knows what the tissues are that “re-attaches” to the tooth, whether it is new attachment, long junctional epithelium, or ankylosis.:confused:  

With pulsed Nd:YAG, using our laser lconfiguration and patented periodontal treatment methodology, we know from controlled university human histology that we are getting new attachment.  Just as importantly, we know there is absolutely no, nada, zip, ziltch damage to root surface or pulp from the “hot-tip” or any other such false attribution that is often made about pulsed Nd:YAG.

I’d be happy to send our research to you, Ron, or anyone else who’d like to receive them.  Just send me a private email with an address.  

As and side, does anyone know why it is called “sulcular decontamination” and not “pocket sterilization” anymore?  Yep, cuz we ain’t killin’ 100% of the bugs.  Kill rates….and kill depths are determined by a number of factors:

1.  Wavelength which defines depth of penetration/absorption into tissues.  Nd:YAG penetrates deeper into tissues than erbium.  Right?

2.  Temporal emisson mode “TEM” (e.g. free-running pulsed versus CW or gated pulse) which defines intensity, and therefore the strength of the wavlength’s effect (at depth or at the surface of tissue).

3.  Pulse duration which further defines the depth of penetration/absorption of a “true-pulsed” (i.e. free-running) per pulse.

But killing bugs in the pocket-space (sulcular decontamination) is not the only place that bacteria reside in perodontal disease-infected tissues, nor is that the only requirement for the successful and safe regeneraton of the periodontal attachment apparatus (say versus long junctional epithelium or ankylosis of bone to root.

And I have a substantial disagreement that early to advanced periodontal disease can be properly treated w/o anesthetic.  For those that don’t remember what went on 13 years ago, when pulsed NdYAGs first came out, we were the first champions of pocket sterilization, laser curettage without anesthetic.  Dr. McCarthy, and the early pioneers like Dean McDaniel, Hector Martinez, Tom Pikar (Canada), Tom Branham, Terry Myers and others (12 all told) were the very first to develop this approach.  Many still use it.  None have the results or success that they do now using our anesthetic LPT methodolgy–and McDaniel, McCarthy, Branham are doing the LPT protocol now….But if you have never seen what can optimally be accomplished, then I unerstand why good results (better than non-laser) look great.

I guess I’m not very good at explaining that the free-running pulsed Nd:YAG is a HARD tissue laser, not merely a “soft tissue laser”, and is not in the same category as a diode, anymore than a free-running pulsed erbium is in the same category as a CW diode……..oh well.  Maybe when I can get my digital, scope mounted camera taking decent pictures I can better demonstrate the hard tissue capabilites that FR Nd:YAGs have.  But don’t expect our sales reps or any of us saying a pulsed neodymium “is better” than free-running erbiums for undefined “hard tissue” applications–even though there are quite a few.

Agreed.  And what training is required by laser manufactureres before their laser is shipped?  None–unless you are an MDT customer.  We require 3 days of basic didactic and clinical hand-ons, live patient training before we will ship the PerioLase MVP-7.  It’s was named “Laser Bootcamp” by our doctors who first went through it many years ago.

Thanks Bruce, too.  I think your perspective is valuable since you own both the Waterlase and the PerioLase MVP-7, and you have been through both company’s training programs.;)

All the best,

Bob

(Edited by Robert Gregg DDS at 11:46 am on May 8, 2003)

Ron–

Thanks for the kind words.  

I know you’re not trying to be argumentative.  I hope we are having a good and “enlightening” discussion–just coming from different perspectives.

I understand your question.  And it’s a fair question.  But I think it assumes a few things, like–the location in the mouth of teeth being treated, the severity of disease, the depth of the pockets treated, the number of times a pocket is treated, and the results are the same with both devices and techniques.  So let me ask you:

1.  What kind of perio pocket depths are you treating?  5mm?  10mm? 20mm?

We treat shallow to 20+mm pocket depths routinely.

2.  Are you treating acutely inflamed as well as chronically inflamed tissues?

We treat all types and severities in one visit with speed and efficiency.

3.  Do you get instant hemostasis so a stable fibrin clot can form?  (Important for regenerative potential and long term stability)

We do by varying 7 different pulse durations in the PerioLase.

The left photo is a Pre-Op with 11 and 12mm pockets and extensive hemorrhaging during S/RP phase of LPT.  The right photo is 4 minutes Post-Op

4.  How does your fiber-delivery system get to the distal aspects of 2nd and 3rd molars?

We treat every pocket, of every tooth, of every patient.

5.  How many times do you have to treat a Case Type IV perio patient?

We treat only one time, regardless of whether the pocket depths are 9 or 19mm in the same patient.

[img]https://www.laserdentistryforum.com/attachments/upload/Saxon composite Pre & Post-op.JPG[/img]

The mesial defect in the left x-ray was 19mm, and the distal defect was 16mm.  The x-ray on the right is a 9 month post-op of the same tooth after only one treatment

6.  What sort of pocket depth reduction, bone density increase are you getting when treating case type III or IV?

Peer reviewed, retrospective, blinded, multi-centered, private practice clinical study study of 65 patients and over 1900 probing sites showed that laser periodontal therapy using a specific modality called “LPT” for “Laser Periodontal Therapy” was reproducible in reducing 90% of pockets without any recession in ONE treatment by a minimum of 50% regardless of pocket depth as such:

> 4mm – 2.2mm reduction
> 6mm – 3.1mm reduction
> 8mm – 4.5mm reduction

http://spie.org/scripts/abstract.pl?bibcode=2002SPIE%2e4610%2e%2e%2e49H&page=1&qs=spie

5.  What is the mid-term stability of those pockets at say 24 months?
Our LPT treated pocket are stable at 24 months and beyond.
[img]https://www.laserdentistryforum.com/attachments/upload/Saxon Compositea.JPG[/img]
Same tooth as the above x-ray over a 24 month time frame

Same tooth with average probe depths charted over 27 months

I’m responding only to your question about clinical results.  Like I said in my earlier post, if all I had was an erbium, and I saw better results than I saw pre-laser use, then I would conclude as you have that I had a pretty neat instrument.  And I am sure that it is for some applications, but not for all perio case types, or as a complete protocol and procedure.

There are lots of legal reasons why you might want a dedicated “perio” laser and an FDA cleared perio protocol for treating perio disease.

FDA cleared “Laser Periodontal Therapy”:

1.  Defines a specific protocol for scientific research. (“sulcular decontamination” does not)

2.  Standardizes training and calibrates academicians, researchers and clinicians. (“sulcular decontamination” is done with great variation in technique—no standardization in parameters or technique)

3.  Is a defined protocol for efficacy and patient safety in clinical practice.  . (“sulcular decontamination” has no defined, that is standardized protocol)

4.  Has the power of Federal Regulatory authority behind the clearance.  (Important legal status that “sulcular decontamination” does not have)

5.  FDA clearance is recognized by State Boards (Important for State Board inquiries for some clinicians over the years—in Florida no less)

6.  Provides legal basis for defense in professional liability claims – i.e. is legally defensible in a malpractice claim.

7.  LPT is now a legitimate option for periodontal informed consent when offering traditional surgery. (“sulcular decontamination” is not)

8.  LPT is not just the only FDA cleared laser periodontal protocol – it is the only FDA cleared periodontal disease treatment protocol for treatment of the full mouth.

But if we take your position one step further removed, one might also ask, “If I have a &#36400 high speed handpiece that cuts everything including gold, amalgam, porcelain, bone and does so faster, cheaper (if not better) than a &#3650,000 dedicated hard issue laser that cannot cut amalgam, gold, or porcelain, then why would I want to invest in that??

Of course I would get quite a reaction from this group. And rightly so, because there’s a lot of other value-added aspects to a hard tissue laser than just the cutting speed and materials limitation that make it a valuable investment.

Invest in the optimal laser for the clinical requirments and demands, and don’t try to force a square peg into a round hole…….You don’t want someone to try LASIK on you or a loved one with a laser that wasn’t optimized for it–but a salesman said, “It’s just as good as an eximer laser!”

Best regards,

Bob

(Edited by Robert Gregg at 4:08 pm on May 8, 2003)

Bob,
A technique to close black triangles? Wow is right!!
Can you give some more details? I would love to here about it.
Andy