All Diode Lasers Are Not the Same_2_

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					                       Bob Cobley is the President of Spectrum Lasers.

He has been in the dental laser business since 1995 and has sold most every dental laser on
the market to approx 3000 GPs and 2000 orthodontists.
Spectrum manufactures and sells a high quality soft tissue dental diode laser hand built in San
Francisco Bay area since 2006. Only superior quality components are used with attention to
every detail including a premium quality diode laser module with a lifetime of 5000 hrs, safety
tested to medical standards, and energy calibrated to +/-2%. Spectralase is Spectrumʼs 6th
generation dental diode laser.




                          Dr. George Bekov is a partner in Spectrum.

He is a laser physicist with a PHD in lasers and optics. He has over 30 years experience in
laser research, design, and manufacturing of advanced medical laser systems and excimer
(LASIK surgery lasers). He authored and co-authored 2 scientific books and more than 100
peer-reviewed scientific publications in international journals. Dr Bekov was a founder and
partner of another dental laser company and invented all of their lasers until 2005.
When developing SPECTRALASE he eliminated several critical design features of his previous
dental lasers to make a system even more reliable.
             ALL DIODE LASERS ARE NOT THE SAME!

Regardless of what some manufacturers say, all diode lasers are NOT the same. A recent
testimonial by a dentist endorsing an economy laser said “ all diode lasers are the same so
you should buy the cheapest one” Is a camera a camera? A TV a TV? A car a car? Of course
not! The basis technology is the same, but the details are not.

Here are some facts and opinions about laser manufacturing from an expert, a physicist with a
PhD in laser physics and 30 years experience, Dr George Bekov,


                            WHAT MAKES A LASER DIFFERENT?

                                       ENERGY CONTROL
Has the laser been calibrated? Calibration is pairing the energy readout (1 watt etc) with the
energy at the fiber tip. Laser modules from the factory are different and calibration must be
done to insure patient comfort and safety. Without calibration the energy of each laser built will
be different by up to +/- 50% and some lasers will vary with each use! Calibration can only be
done by an expert.
                                            LONGEVITY
The lifetime of a laser depends on:
   Cooling system
   Without a cooling system the module will burn out. The first dental lasers: Nd:YAG in 1991
   were large units because of their water cooling system. The original diode lasers, Premier
   and ADT, had large fans. Today the better quality lasers have small efficient fans. An
   efficient cooling system is required or the voltage will fluctuate and calibration is impossible.
   Quality assembly
   Who builds them? Temp workers? Trained technicians? Spectralase is built by a
   scientist! Where are they built? Spectrum knows from experience that lasers built by
   unskilled labor and temp workers have quality problems. They also know that a physicist
   pays attention to every detail and anything less than absolute perfection is not allowed to be
   shipped. They also know from experience there are problems associated with shipping
   lasers overseas for repair.
                     ALL LASERS DO NOT USE A QUALITY LASER MODULE
   Bundled or Focused beam laser module
   This is very important! This is the major difference between a cheap low budget laser and a
   quality laser. (explained in the next slide)
                                           PULSE MODE
   An advanced pulse mode is essential for precision, control, patient comfort, and
   disinfection. All pulse modes are not the same. Slide #9.
                                                SIZE
   Small micro lasers are very easy to drop! An iphone sized laser will be pulled off the
   counter. Some lasers have an external power larger than the laser itself.
            ALL LASERS ARE NOT SAFETY TESTED TO MEDICAL STANDARDS
   How do you know it was safety tested at all? Can you trust it because it was FDA
   approved? Dentsply/GAC selected Spectralase (from all the lasers out there) as the laser
   they would sell after 18 months of testing. Testing much more rigid than the FDA requires
   You can trust that Dentsply/GAC would not risk their reputation on a laser that was not
   properly safety tested?
                                             TRAINING
  Most training is not for orthodontists. Courses are taught by GPs and RDHs. Spectrumʼs
  training is exclusively for orthodontists.
                              SUPPORT AND SERVICE HISTORY
  Anyone can claim their lasers have few problems but, can they prove it. Spectrum had to
  prove it to GAC. They have repaired 2 lasers since 2006.
                  NOT ALL LASERS HAVE AUTOCLAVABLE HAND PIECES
  This is unbelievable but true! Some manufacturers say disinfection (wipe down) is adequate
  and others say their hand pieces donʼt require autoclaving since they have disposable
  sterile 3” tips, by the way these tips cost between $5-$9 each! It is common knowledge that
  an entire hand piece is exposed to aerosolized oral bacteria, not just the first 3”. Lawyers
  have a way of discovering these facts.
 BEWARE OF COMPANIES THAT ADVERTISE PRICE ONLY “WE ARE THE CHEAPEST”
  Intelligent people certainly know “You get what you pay for”! Most “Bargain Basement”
  “Super Economy” lasers are reverse engineered copies made (or designed) in China by
  cutting every corner, eliminating energy calibration, and safety testing to medical standards,
  These discount lasers are usually assembled by temp workers and built with the least
  expensive laser module.

            THE QUALITY OF THE LASER MODULE
            IS THE MAJOR DIFFERENCE BETWEEN
         A QUALITY LASER AND AN INFERIOR LASER!!




                                                                                   !

                                Focused Beam Laser Module
The laser beam travels from a chip through a series of mirrors and focusing lenses (the higher
quality lenses the more focused the beam) directly through the connector to the delivery fiber
without energy loss. They do not lose power. A quality focused beam laser module has been
proven to have a lifetime of 5000 hrs of use, well over 15 years. The original diode lasers,
(Premier & ADT) that came to dentistry in 1996, had focused beam modules and most are still
in use today.
                                                                                       !


                                 Bundled Fiber Laser Module
A bundled fiber module is an inexpensive inferior quality alternative. It consists of several small
chips each with its own fiber. The fibers are bundled together and glued with epoxy, see top
view. The bundle tip must be perfectly level (no focusing lenses) to deliver an even beam into
the connector. It is near impossible to get the fibers perfectly level. This causes beam (heat)
scattering and rebound at the connection. The rebounding heat causes the epoxy to boil and
bubble leaving residue and soot covering the fiber tips. The clinician will notice decreased
power after a few uses. The residue increases with each use and eventually completely blocks
the energy from passing through the fiber. The energy will bounce back through the fiber and
burn out the chip. Depending on use, this could occur in approximately 12-18 months. It is
possibly covered under a warranty, but still a hassle to return for repair, if they can repair it. A
bundled fiber module cannot be calibrated.
                               ENERGY CONTROL
         IT IS VERY IMPORTANT THAT YOU HAVE COMPLETE CONTROL
  OF LASER ENERGY TO INSURE PATIENT COMFORT AND SAFETY, ELIMINATE THE
       CHANCE OF PRODUCING SCAR TISSUE, CHARRING TARGET TISSUE,
                          OR DAMAGING ENAMEL.


                           FACTORS THAT CONTROL ENERGY

        •   Operating Current
               Current that runs through the
               laser module determines wattage
        •   Voltage
               Determines operating current
        •   Diode module temperature
               Must have an efficient cooling system to control voltage
        •   Smooth passage of beam from module through
               connection to delivery fiber
        •   Calibration
               Pairing the laser energy readout
               with energy at the fiber tip


For obvious reasons it is very important that you are able to control the energy (wattage).
The operating current that runs through the laser module determines the wattage.
When manufacturing a laser, Spectrum must control the voltage to control the current.
Laser energy is heat and the module must be cooled. Lasers without a cooling system (most
micro and wand type lasers) cannot be calibrated because the temperature of the module will
vary during use. Smooth passage of energy from the laser to the tip is required to pair the
wattage. A laser must be calibrated to insure patient comfort and safety.
               LASER MODULES FROM THE FACTORY
                      ARE NOT THE SAME




Above are two spec sheets for high quality lasers modules. Note the serials #s are in order,
1857 and 1858. The operating currents have a variance of 3.28 to 3.76. ALL laser modules
from the factory have a variance in operating current, therefore; you cannot just take the parts
off the shelf and assemble a quality laser. Every laserʼs power will be different, even with each
use. Calibration is required to control energy.



           ONLY AN EXPERT CAN CALIBRATE A LASER
Calibration (The wattage readout on the control panel (1.0 etc) must be calibrated or paired
with the wattage at the fiber tip).

Dr Bekov (PHD) spent 2 years developing a calibration technique by adjusting the controller
code memory. Spectralase is calibrated to +/- 2%, uncalibrated lasers are +/- 50%! The
industry standard is +/-15%,
                  LASER CALIBRATION TEST SHEET
Dr Bekov adjusts the voltage by hand at each setting, CW and pulsed, 40 channels per laser
before signing off for shipping
                 CONTINUOUS WAVE & PULSE MODE

All current diode lasers provide laser energy in both continuous wave (CW) and pulsed (P)
modes. CW is a constant beam of power best used for thick fibrous tissue, but does not allow
for thermal relaxation of the tissue, while pulsed modes allow for thermal relaxation (cooling)
between energy pulses. When using CW tissue charring and patient comfort may be an issue,
both during the procedure and postoperatively. Sometimes requiring local anesthesia.

An advanced pulsed more is certainly preferred over CW. The advantages are precision,
control, patient comfort, and disinfection.

Our goal is to optimize energy deposition with appropriate pulse intervals in order to achieve
maximum coagulation and disinfection while maintaining the proper tissue cooling cycle.



              ALL PULSE MODES ARE NOT THE SAME




                                                                                          !


                               Outdated standard pulse mode

The Standard “old fashioned” gated or chopped pulse mode that many diode lasers provide.
The beam is on and off 1/2 time, commonly called 50% duty cycle. The laser pulses 10-25
number per second depending on your watts setting. In other words, a long pulse and long
pause. The target tissue receives only 1/2 the power setting and low powered lasers of 2-3
Watts simply cannot cut fibrous tissue. These lasers also do not deliver an adequate energy
burst for essential bacteriocidal action. CW is the preferred mode for those who own of a 50%
duty time laser and must deal with patient sensitivity issues.
                                                                                          !

                     Spectrumʼs version of a pulse mode “Elite Pulse”

Years of medical community research influenced Dr. Bekov to create a pulse mode using short
pulses with a duration of 10 millionths of a second and an amplitude of 6-7 Watts. These power
levels are high enough to cause coagulation of surface tissue and have bacteriocidal
properties. Spectralase Elite automatically adjusts the pulse width depending on the wattage
setting. The higher the wattage, the longer the width, but still allowing time for the tissue
cooling. Your power setting is the average power of the pulses.The self adjusting pulse will
deliver an average power that insures patient comfort and prevents tissue charring.

Research and clinical experience has led Spectrum to conclude that this combination of
variable pulse width and pulse interval is optimal for laser performance and tissue health.



        Spectralase Elite Spectrumʼs 6th Generation
                 Diode Laser Upgrades to
                    980nm Wavelength

The wavelength of Spectralase Elite has been upgraded from 810 nm to 980 nm.
Studies prove 980 nm light is absorbed 6 times greater at the tissue surface with
thermal penetration depth 5 times less than with the 810 nm laser beam.

Greater surface absorption results in more efficient incisions with minimal tissue
charring.

Less thermal penetration causes less damage to the underlying tissue insuring patient
comfort and superior healing.
WHY SHOULD YOU PURCHASE A SPECTRALASE ELITE?

          SPECTRALASE ELITE IS THE ONLY LASER:

Hand built In San Francisco with the highest quality components by a laser physicist
(PhD) with 30 years experience manufacturing advanced medical and LASIK surgery
lasers

Calibrated energy to +/- 2% accuracy by a laser physicist

Highest quality Focused Beam laser module
   Tested and proven to have a lifetime of 5000 hrs to exceed 15 years

“Elite Pulse” The most advanced pulse mode in dentistry
    The combination of short pulses of 6-7 watts with a duration of 10 millionths of a second
    and self adjusting pulse intervals to achieve maximum coagulation and disinfection while
    insuring patient comfort and safety.

Safety tested to medical standards by a laser physicist
  Approved by Dentsply/GAC after 18 months of testing

980 nm wavelength is superior
  Studies prove 980 wavelength is by far most efficient with thermal
  depth of penetration 5 times less than 810nm, (cleaner and faster cutting with less
  charring and better patient comfort)

Service history of only 2 repaired lasers out of 1200 sold
  An full time on-site laser physicist guarantees a quality product

Satisfaction Guaranteed and a 3 Year Warranty

Included Training Exclusively For Orthodontists
   Most companies offer courses focused to GPs and RDHs

				
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