Page 1 of 51
“ALD EXAM QUESTIONS 2026 ”LATEST EXAM 2026 –
2027 SOLVED QUESTIONS & ANSWERS VERIFIED
100% GRADED A+ (LATEST VERSION) WELL REVISED
100% GUARANTEE PASS
ALD Exam Questions
Compared to soft tissues incised with a scalpel, what is an advantage of using
a laser?
A. Surgical procedure takes less time
B. Less chance for infection
C. Wound healing is quicker
D. No advantages
A. Surgical procedure takes less time
B. Less chance for infection
C. Wound healing is quicker
D. No advantages
Which laser has the least absorption in healthy dental hard tissues?
A. Nd:YAG 1064 nm
B. Er,Cr:YSGG 2780 nm
C. Er:YAG 2940 nm
D. CO2 10,600 nm
A. Nd:YAG 1064 nm
B. Er,Cr:YSGG 2780 nm
C. Er:YAG 2940 nm
D. CO2 10,600 nm
The correct technique to cleave a fiber is to:
A. Saw back-and-forth on the fiber
, Page 2 of 51
B Scribe a single line across the fiber
C. Use a quick, direct blow to hit the fiber
D. Cut fiber with scissors
A. Saw back-and-forth on the fiber
B Scribe a single line across the fiber
C. Use a quick, direct blow to hit the fiber
D. Cut fiber with scissors
The wavelength range commonly associated with surgical diode lasers in
dentistry is:
A. 400-655 nm
B. 810-1064 nm
C. 1340-2780 nm
D. 2940-10600 nm
A. 400-655 nm
B. 810-1064 nm
C. 1340-2780 nm
D. 2940-10600 nm
Photobiomodulation has FDA clearance for which treatment? A. Nerve
regeneration
B. Increased healing rate
C. Lichen planus
D. Pain management
A. Nerve regeneration
B. Increased healing rate
C. Lichen planus
D. Pain management
Which of the following safety practices is standard protocol during surgical
laser procedures?
A. Cheek retractor
B. Water spray
C. Saliva ejector
D. High-volume evacuation
A. Cheek retractor
B. Water spray
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C. Saliva ejector
D. High-volume evacuation
Research into the applications of erbium lasers in endodontics has
demonstrated efficiency at:
A. Reducing bacterial counts within the canal
B. Improving obturation
C. Shaping the canal walls
D. Welding internal root fracture
A. Reducing bacterial counts within the canal
B. Improving obturation
C. Shaping the canal walls
D. Welding internal root fracture
Which lasers are most effective for preparation of enamel and dentin?
A. Diode 810/980 nm and Nd:YAG 1064 nm
B. Er,Cr:YSGG 2780 nm and CO2 9300 nm
C. Er:YAG 2940 nm and Diode 1064 nm
D. Diode 940 nm and CO2 10,600 nm
A. Diode 810/980 nm and Nd:YAG 1064 nm
B. Er,Cr:YSGG 2780 nm and CO2 9300 nm
C. Er:YAG 2940 nm and Diode 1064 nm
D. Diode 940 nm and CO2 10,600 nm
The prime safety concern(s) when using dental lasers is (are): A. Coolant
application and anodized instruments
B. Non-reflective instruments
C. Eye protection and plume control
D. Laser safety officer present
A. Coolant application and anodized instruments
B. Non-reflective instruments
C. Eye protection and plume control
D. Laser safety officer present
Which of the following lasers is typically used for intraoral soft tissue
removal?
A. Ruby lasers
B. Excimer lasers
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C. Helium-neon lasers
D. GaAlAs lasers
A. Ruby lasers
B. Excimer lasers
C. Helium-neon lasers
D. GaAlAs lasers
Device-specific indications for use are found in:
A. Professional information section of the operating manual
B. American National Standard for the Safe Use of Lasers in Health Care
Facilities
C. Case reports
D. Laser clinical textbooks
A. Professional information section of the operating manual
B. American National Standard for the Safe Use of Lasers in Health Care
Facilities
C. Case reports
D. Laser clinical textbooks
An Er,Cr:YSGG laser is used within the sulcus at 1 W, 20 Hz, 10% water, 20%
air to approximately 60 degrees C. At these parameters, what would be
expected?
A. Tissue welding
B. Vaporization
C. Protein denaturation
D. Carbonization
A. Tissue welding (incision) (70-90º)
B. Vaporization (no pain) (100-180º)
C. Protein denaturation (kill bacteria) (50-60º)
D. Carbonization (bad, pain) (200º)
The prerequisite to be a laser safety officer is:
A. Licensed dentist
B. Laser manufacturer representative
C. Properly trained team member
D. Registered dental hygienist
A. Licensed dentist
“ALD EXAM QUESTIONS 2026 ”LATEST EXAM 2026 –
2027 SOLVED QUESTIONS & ANSWERS VERIFIED
100% GRADED A+ (LATEST VERSION) WELL REVISED
100% GUARANTEE PASS
ALD Exam Questions
Compared to soft tissues incised with a scalpel, what is an advantage of using
a laser?
A. Surgical procedure takes less time
B. Less chance for infection
C. Wound healing is quicker
D. No advantages
A. Surgical procedure takes less time
B. Less chance for infection
C. Wound healing is quicker
D. No advantages
Which laser has the least absorption in healthy dental hard tissues?
A. Nd:YAG 1064 nm
B. Er,Cr:YSGG 2780 nm
C. Er:YAG 2940 nm
D. CO2 10,600 nm
A. Nd:YAG 1064 nm
B. Er,Cr:YSGG 2780 nm
C. Er:YAG 2940 nm
D. CO2 10,600 nm
The correct technique to cleave a fiber is to:
A. Saw back-and-forth on the fiber
, Page 2 of 51
B Scribe a single line across the fiber
C. Use a quick, direct blow to hit the fiber
D. Cut fiber with scissors
A. Saw back-and-forth on the fiber
B Scribe a single line across the fiber
C. Use a quick, direct blow to hit the fiber
D. Cut fiber with scissors
The wavelength range commonly associated with surgical diode lasers in
dentistry is:
A. 400-655 nm
B. 810-1064 nm
C. 1340-2780 nm
D. 2940-10600 nm
A. 400-655 nm
B. 810-1064 nm
C. 1340-2780 nm
D. 2940-10600 nm
Photobiomodulation has FDA clearance for which treatment? A. Nerve
regeneration
B. Increased healing rate
C. Lichen planus
D. Pain management
A. Nerve regeneration
B. Increased healing rate
C. Lichen planus
D. Pain management
Which of the following safety practices is standard protocol during surgical
laser procedures?
A. Cheek retractor
B. Water spray
C. Saliva ejector
D. High-volume evacuation
A. Cheek retractor
B. Water spray
, Page 3 of 51
C. Saliva ejector
D. High-volume evacuation
Research into the applications of erbium lasers in endodontics has
demonstrated efficiency at:
A. Reducing bacterial counts within the canal
B. Improving obturation
C. Shaping the canal walls
D. Welding internal root fracture
A. Reducing bacterial counts within the canal
B. Improving obturation
C. Shaping the canal walls
D. Welding internal root fracture
Which lasers are most effective for preparation of enamel and dentin?
A. Diode 810/980 nm and Nd:YAG 1064 nm
B. Er,Cr:YSGG 2780 nm and CO2 9300 nm
C. Er:YAG 2940 nm and Diode 1064 nm
D. Diode 940 nm and CO2 10,600 nm
A. Diode 810/980 nm and Nd:YAG 1064 nm
B. Er,Cr:YSGG 2780 nm and CO2 9300 nm
C. Er:YAG 2940 nm and Diode 1064 nm
D. Diode 940 nm and CO2 10,600 nm
The prime safety concern(s) when using dental lasers is (are): A. Coolant
application and anodized instruments
B. Non-reflective instruments
C. Eye protection and plume control
D. Laser safety officer present
A. Coolant application and anodized instruments
B. Non-reflective instruments
C. Eye protection and plume control
D. Laser safety officer present
Which of the following lasers is typically used for intraoral soft tissue
removal?
A. Ruby lasers
B. Excimer lasers
, Page 4 of 51
C. Helium-neon lasers
D. GaAlAs lasers
A. Ruby lasers
B. Excimer lasers
C. Helium-neon lasers
D. GaAlAs lasers
Device-specific indications for use are found in:
A. Professional information section of the operating manual
B. American National Standard for the Safe Use of Lasers in Health Care
Facilities
C. Case reports
D. Laser clinical textbooks
A. Professional information section of the operating manual
B. American National Standard for the Safe Use of Lasers in Health Care
Facilities
C. Case reports
D. Laser clinical textbooks
An Er,Cr:YSGG laser is used within the sulcus at 1 W, 20 Hz, 10% water, 20%
air to approximately 60 degrees C. At these parameters, what would be
expected?
A. Tissue welding
B. Vaporization
C. Protein denaturation
D. Carbonization
A. Tissue welding (incision) (70-90º)
B. Vaporization (no pain) (100-180º)
C. Protein denaturation (kill bacteria) (50-60º)
D. Carbonization (bad, pain) (200º)
The prerequisite to be a laser safety officer is:
A. Licensed dentist
B. Laser manufacturer representative
C. Properly trained team member
D. Registered dental hygienist
A. Licensed dentist
