“The 980nm wavlength is by a matter of 4-8 fold better absorbed in water than the 810 nm.”

Sorry, the water absorption ist absolutly irrelevant for diode-laser application. If you take a look at the absorption-charts you will see, that there is nearly no absorption in water. With 810 nm you will find about 0,01 % and with 980 nm 0,05 %. You can simply test it by dipping the fibre into a glass of water with maximum laser power. There happens nothing no matter if you take a 980nm or a 810 nm diode laser.

If someone is looking for the best Watt/&#36 diode laser, then take a look at the elexxion website, another german laser-company:

<a href="http://www.elexxion.com

It” target=”_blank”>http://www.elexxion.com

It is a 30 W, 810 nm unit, pusled with 20.000 Hz. The laser will be available in US in 2005 after finishing the FDA procedures.

Olaf

Hi Bob,
This diode Claros by Elexxion is a 30w 810nm diode.
It’s in digital pulse giving 2.5us as they claim. I asked a few times to confirm this figure and they said it is correct! What do you think in the difference/similarity between tissue response for this pd in a 810 and Nd:YAG?
No need for tip activation!
It also have a LLLT parameters.
Elegant looking machine – check out the web-site!
Ken

Is this Claros designed for DENTAL applications? What would be the purpose of a 20K Hz 30Watt 810nm diode – to amputate an arm?

Al

Ok, someone please enlighten me… A machine that takes up half an operatory, 30 watts pulsed and I am to do what with it…On the site , it says it can be used for cavity preps…can a pulsed high watt diodde cut hard tissue? Bon..Please help here…
Thanks…

Thank you for the clarification Olaf. That was most helpful.

The laser ablates soft tissue efficiently without initiating the fiber tip, correct?

Can the Claros be used to ablate soft tissue without contacting the tissue with the fiber tip?

Thanks,

Al

It seems interesting but iI still have questions…I wsnt clear on where u r heading with thehard tissue…Can the diode actually cut hard tissue or will the hard tissue be cut by an erbium which is to be incorporated into the box….So If I also undertsnad correctly the big advantage here is no need for tip activation and some better histology results….If that is coorect is there a market for this expensive large laser when conventional diodes which currently drive the laser market in the U.S. because of affordabilty and ease of use, are getting cheaper and cheaper?

@whitertth:

Cutting hard tissue with a diode is impossible until now and I don´t believe that this will be possible in the future (wrong wavelength, not enough pulse power).

Hard tissue treatment will be done with our integrated erbium modul.

Another advantage of the high-pulsed diode is a cutting performance that almost reaches the performance of a Co2 but without bleeding.

Do you think our unit is too expensive It will be under &#36 20.000 on the US-market. ith very comfortable and autovclavable handpieces, with coloured display, touchpanel and very easy to use, 70 prestored application-programs which can be activated with 2 tips of your finger ?

Perhaps the pictures on the website give you a wrong impression of the real size. It isn´t much larger than other diode lasers on a cart or for example the periolase.

In Europe we see higher sales from month to month. The strategy is very simple: Our customers get the chance to test our system against competitor systems (most of them diodes) without any cost. This year we sold more than 100 units until now.

Olaf

Olaf,

Welcome to the LDF.  It’s great to have another manufacturer posting here.

Thank you very, very much for your detailed background and device review.  Your English is much better than my German, so thank you for your efforts to communicate with us!

Your history of involvement with lasers and your evolution with the diode technology is very interesting.  It supports my theory that designer/engineers and their products are the result of their prior experiences with the technology they are most familiar with.  I mean no disrespect, it is just an observation I have had over the past 14 years of my involvement with a number of laser companies, engineers, designers, software developers, etc.  My involvement with the PerioLase development could also be used to support my theory.

I am familiar with Oralis, as my good friend from Germany–Dr. Claus Neckels has been using their diode system in oral surgery for some time.  Have you  worked with Dr Neckels and this new “super-charged” diode?

To my friends with many good questions, we are seeing the next generation in diode and laser technology, and size, display, software, features, etc.  This is great for laser dentistry.

As Olaf has explained, they have been able to create very short pulse durations (10 usec), which is a great development for lasers.  As you all can see, though, the larger size reflects the added capabilities.  As we see, as capabilities are added, size increases.

For example, the digital FR pulse PerioLase weighs just a little more than the first dental diode–the Premier Aurora, but with much more capabilities and features.

The duty cycle is an extremely important parameter for optimal thermal tissue relaxation.  While PD is important, DC is equally so.

For example, a duty cycle of 8% with an 800 usec laser at 50 Hz did a lot of severe damage to patients in the US and that laser was pulled from the market.

The FRP Nd:YAG lasers–including the PerioLase–have duty cycles that range from 0.1 to 0.2% “on time”.  This means a thermal relaxation time of 500 fold “off” time over on.

The Claros has a DC of 25%, which doesn’t allow for as much thermal relaxation time as even the 8% device, the generation of high peak powers, the removal of hard tissue that we can do with high peak power FRP Nd:YAGs. But that doesn’t mean it is dangerous as the other parameters of extremely short PD and high Hertz can effect the actual tissue interaction.

Olaf has defined the reasonable and responsible clinical expectations of a device with the reported parameters.  I think the price Olaf of &#3620,000 US will make the Claros an instant “player” in the diode and near-IR marketplace.  The US marketplace will want to see new science behind these very new device parameters, or want Elexxion to sponsor some US research.  There will also be a need to provide some training, as dentists are looking to manufacturers more to provide clinical training, unless and until US dental schools get involved with conducting dental laser curriculums.

All in all, a very positive development in dental lasers.  It’s is very encouraging and exciting to see that new innovators are developing new laser products for dentistry.

Welcome to the marketplace Olaf!

Bob