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Dr. Fuad Al-AbbadiMedics Index Member

The reported applications of laser in a variety of dental procedures are growing and

have prompted a great deal of interest.

History of laser began with the name of Albert Einstein, who in 1917 was the first to

describe the physical principles of the stimulated emission of radiation

What does the acronym LASER stand for ?

L = Light

A = Amplification

S = Stimulated

E = Emission

R= Radiation

Popular Wavelengths:

Co2(Carbon Dioxide)

Nd:YAG(Neodymium:Yttrium-Aluminum-Garnet)

Argon

Diode(Gallium-Arsenide)

Er:YAG(Erbium..)

Ho:YAG(Holmium.)

Er,Cr:YSGG(Erbium,Chromium:Yttrium-Selenium-Galllium-Garnet

Lasers Modes

Free-running pulsed mode

Continuous mode

Gated continuous mode

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No mode is better than another!

Choose the mode that is best for the particular type of procedure

CO2 (Carbon Dioxide)

10,600 nm wavelength

Gas Laser

Continuous mode , gated

Non-contact use

Used for soft tissue procedures only

Nd:YAG

1064 nm wavelength

Sold state laser

Free running pulsed

Contact/non-contact

Soft tissue procedures

Diode

904 nm wavelength

Pulsed/continuous modes

Soft tissue precedures only

Biostimulation

Er:YAG

2940 nm wavelength

Solid state laser

Pulsed

Contact/non-contact Soft tissue and hard tissue procedures

Delivering Laser Energy to the Tissue

Laser energy is conducted through:

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- Quartz (glass) fibers

- Hollow wave guides

- Articulated arms

Laser in Dentistry

Allows for minimally invasive dentistry

Less healthy tissue has to be removed

Less bleeding, less swelling, less discomfort for the patient

Allows for anesthetic-free dentistry in many cases

Be Safe . . . !!

Lasers can cause:

- Retinal burns- Corneal burns

- Night vision degradation- Thermal Skin burns

Before Using Laser .....

Place safety glasses on the clinician and the patient

Ensure the laser is properly prepared and in ready mode

Have proper training on the laser

Make sure there is high-volume evacuation

Have laser safety sign posted

Lasers and Cutting Teeth

Lasers with affinity for water and hydroxyapatite are effective for ablating enamel

Can remove healthy or diseased enamel and dentin without anesthetic in most

cases

Lasers and Cutting Teeth

Removes smear layer

Sterilizes the prepared site

Increases bond strength for composite

Etching of the prepared surfaces

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A- Soft Tissues Surgeries:

Frenectomy

Soft tissue lesions; ie ,fibromas, vascular lesions, Epulis, papillomas

Biopsies

Aphtus ulcers

Gingival surgery

B- Hard Tissue Surgeries:

Osteotomy

Tooth sectioning

Periapical surgery

Osseous regulation

Lasers and Bone

Gentle than bone saws or high speed drills

Less postoperative pain

Less necrosis of surrounding tissue

Minimal trauma due to heat transfer

NO trauma to periosteum when removing bone for grafting

Lasers and Endo

Can disinfect the canal

More precise conservative endo treatment

Reduced postoperative pain Minimizes trauma to enamel when accessing pulp chamber

Reduced need for antibiotics post-op

Leaves dentinal tubules open

Lasers and Perio

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Minimally invasive approach to perio:

- Lasers non-surgical management and treatment of periodontal pockets- De-epitheliazing new attachments

- Laser therapeutics to control pathogens

Bleaching

Dr. Fuad Al-AbbadiMedics Index Member

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