ALD Laser Certification Exam 2025
Questions and Answers 100% Pass
Four Types of Soft Tissue Lasers - ✔✔Argon, Diode, Co2 10,600, Nd:YAG/YAP
Three Types of All Tissue Lasers - ✔✔Er, Cr, Er: YAG, Co2 9,300
Three basic functions of dental lasers: - ✔✔Ablate (vaporization), Stimulate (tissue
response) & Decontaminate (Disinfect)
An electromagnetic wave bundle of energy is called a ________ - ✔✔Photon
What determines the color of light energy? - ✔✔The length of the wavelength
The ______ and ______ is considered a full wavelength cycle. - ✔✔Crest and Trough
The number of wavelengths is called _______. - ✔✔Frequency
The higher the amplitude, the ______ (speed) of the cycle. - ✔✔Faster
Name two names of light energy: - ✔✔Radiant, Photonic
Light is measured by ______. - ✔✔Wavelength
Light rays travel in a _______ line and are multi-______. - ✔✔Straight, multidirectional
White light has:
1. _____ emission
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,2. Combination of ______ wavelengths
3. _____ be focused.
4. Coherent or Non-coherent?
5. Divergent, multidirectional, and/or highly directional?
6. Polychromatic or monochromatic?
7. Non-ionizing or ionizing? - ✔✔1. Spontaneous emission
2. Multiple wavelengths
3. Cannot be focused
4. Non-coherent
5. Divergent and multidirectional
6. Polychromatic
7. Ionizing
Laser light has:
1. _____ emission
2. ______ wavelengths
3. Focused or not focused?
4. Coherent or Non-coherent?
5. Divergent, multidirectional, and/or highly directional?
6. Polychromatic or monochromatic?
7. Non-ionizing or ionizing? - ✔✔1. Focused emission
2. Single wavelength - collimated
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, 3. Focused
4. Coherent
5. Highly directional
6. Monochromatic
7. Non-ionizing
What is the term used to describe light that travels together in a single wave? -
✔✔Collimated
Velscope, Diagondent, and a dental curing light is an example of what kind of light on
the dental electromagnetic spectrum? - ✔✔Visible (with shorter wavelengths)
Three examples of Near Infrared lasers: - ✔✔1. Diode (soft tissue)
2. Nd:YAG (soft tissue)
3. Nd: YAP (soft tissue)
Two types of Mid Infrared lasers: - ✔✔1. Er: YAG (all tissue)
2. Er, Cr (all tissue)
Two Types of Far Infrared lasers: - ✔✔1. CO2 9300 (all tissue)
2. CO2 10600 (soft tissue)
When all colors are focused together it is called _____ ____. - ✔✔White light
What dictates the color of light? - ✔✔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. -
✔✔Stimulated emission
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Questions and Answers 100% Pass
Four Types of Soft Tissue Lasers - ✔✔Argon, Diode, Co2 10,600, Nd:YAG/YAP
Three Types of All Tissue Lasers - ✔✔Er, Cr, Er: YAG, Co2 9,300
Three basic functions of dental lasers: - ✔✔Ablate (vaporization), Stimulate (tissue
response) & Decontaminate (Disinfect)
An electromagnetic wave bundle of energy is called a ________ - ✔✔Photon
What determines the color of light energy? - ✔✔The length of the wavelength
The ______ and ______ is considered a full wavelength cycle. - ✔✔Crest and Trough
The number of wavelengths is called _______. - ✔✔Frequency
The higher the amplitude, the ______ (speed) of the cycle. - ✔✔Faster
Name two names of light energy: - ✔✔Radiant, Photonic
Light is measured by ______. - ✔✔Wavelength
Light rays travel in a _______ line and are multi-______. - ✔✔Straight, multidirectional
White light has:
1. _____ emission
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,2. Combination of ______ wavelengths
3. _____ be focused.
4. Coherent or Non-coherent?
5. Divergent, multidirectional, and/or highly directional?
6. Polychromatic or monochromatic?
7. Non-ionizing or ionizing? - ✔✔1. Spontaneous emission
2. Multiple wavelengths
3. Cannot be focused
4. Non-coherent
5. Divergent and multidirectional
6. Polychromatic
7. Ionizing
Laser light has:
1. _____ emission
2. ______ wavelengths
3. Focused or not focused?
4. Coherent or Non-coherent?
5. Divergent, multidirectional, and/or highly directional?
6. Polychromatic or monochromatic?
7. Non-ionizing or ionizing? - ✔✔1. Focused emission
2. Single wavelength - collimated
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, 3. Focused
4. Coherent
5. Highly directional
6. Monochromatic
7. Non-ionizing
What is the term used to describe light that travels together in a single wave? -
✔✔Collimated
Velscope, Diagondent, and a dental curing light is an example of what kind of light on
the dental electromagnetic spectrum? - ✔✔Visible (with shorter wavelengths)
Three examples of Near Infrared lasers: - ✔✔1. Diode (soft tissue)
2. Nd:YAG (soft tissue)
3. Nd: YAP (soft tissue)
Two types of Mid Infrared lasers: - ✔✔1. Er: YAG (all tissue)
2. Er, Cr (all tissue)
Two Types of Far Infrared lasers: - ✔✔1. CO2 9300 (all tissue)
2. CO2 10600 (soft tissue)
When all colors are focused together it is called _____ ____. - ✔✔White light
What dictates the color of light? - ✔✔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. -
✔✔Stimulated emission
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