ALD Laser Certification Exam Questions And Answers Verified 100% Correct

ALD Laser Certification Exam Questions And Answers Verified 100% Correct When all colors are focused together it is called _____ ____. - ANSWER -White light What dictates the color of light? - ANSWER -The length of the wavelength An active medium is a material that can amplify electromagnetic radiation through the process of _________ _______, a key component in the operation of lasers. - ANSWER -Stimulated emission What part of the eye allows us to see colors? - ANSWER -Cones The vaporation of tissues and bacteria through the use of a laser is called: - ANSWER -Ablation Hemostasis, coagulation, cauterization, and a decrease of inflammation occurs when the dental laser _________ a tissue response. - ANSWER -Stimulates Dental lasers lower bacteria counts through a disinfection process called ____ - ANSWER -Decontamination A ______ wavelength has a higher frequency - ANSWER -Short A _____ frequency has a shorter wavelength - ANSWER -Higher A _____ frequency has a longer wavelength - ANSWER -Low A ______ wavelength has a low frequency - ANSWER -Longer The Retina has photoreceptors called cones and rods to interpret light. Cones are responsible for ____ vision and Rods are responsible for _____ vision. - ANSWER -Cones = color vision; Rods = night (low light) vision The material within the optical cavity, when stimulated and amplified into a population inversion, will emit laser energy is called ___ ____ - ANSWER -Active medium What is positioned within the laser cavity between the optical resonator and is surrounded by both the pumping mechanism or energy source? ___ ___ - ANSWER -Active medium Name Three Active Mediums of Dental Lasers: - ANSWER -1. Gas 2. Crystal 3. Semiconductors What type of lasers are most likely to damage titanium implants? - ANSWER Soft tissue lasers, DIODES What type of laser best removes zirconium restorations? - ANSWER -Erbium Name two functions of the Er, Cr water spray? - ANSWER -1. Cooling 2. To increase the ablation depth What laser has the wavelength range that is commonly associated with surgical procedures? - ANSWER -Diodes What type of therapy involves laser-activated selective uptake initiators? - ANSWER -Photodynamic therapy What type of delivery system does the Er, Cr laser use? - ANSWER -Trunk fiber 10,600 nm is written as what in m? (Nm 10-9, m10-6) - ANSWER -10.6 What type of therapy kills cancer cells with photosensitive agents? - ANSWER Photodynamic Therapy Articulating arm and Hallow Wave guide delivery systems are mostly used by what type of lasers? - ANSWER -CO2, Erbium Hallow wave guide and optical fiber delivery systems are used by what type of lasers? - ANSWER -Nd:YAG Optical fiber delivery systems are used by what type of lasers? - ANSWER -Soft tissue lasers, Nd's and Diodes What type of emission modes has the peak power equal to the average power? - ANSWER -Continuous wave For a gated chopped pulse emission modes with 50% TRT (.5 pulse length) with a peak power of 4.0, what is the average percentage of peak power? - ANSWER -2.0 W For a free running pulse emission modes that has an energy of 200 mj and a pulse rate of 10 hz, what is the. Total watt of energy? ( j x Hz) - ANSWER -.2j x 10 Hz = 2.0 W What makes a laser more beneficial than an electrosurge? - ANSWER -Longer lasting hemostasis What two laser types have GAS as an active medium? - ANSWER -Argon, CO2'S What two laser types have CRYSTAL as an active medium? - ANSWER -Nd's and Er's What laser type has a SEMI-CONDUCTOR as an active medium? - ANSWER Diode's (most versatile) Ionizing Gamma Rays, X-ray, UV's have a ______ wavelength and _____ frequency. - ANSWER -Short wavelength; high frequency What types of cells do gamma rays destroy? - ANSWER -Cancer cells UV light and visible light are photo______. - ANSWER --chemical Infrared light are photo_____. - ANSWER --thermal What laser types are NEAR infrared lasers? - ANSWER -Diodes, Nd:YAG/YAP What laser types are MID infrared lasers? - ANSWER -Erbiums Which laser types are FAR infrared? - ANSWER -CO2's and Argon Photons that raise electrons from a lower energy level to a higher energy level is called _____ ____. - ANSWER -Optical pumping