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Academy of Laser Dentistry (ADL) Laser Certification Exam ( Update 2025 / 2026) Questions & Answers
Question:
What is LANAP?
Answer:
Laser Assisted New Attachment Procedure
Question:
How is LANAP therapy effective in periodontal pocket treatment?
Answer:
The Nd:YAG laser "recognizes" the basement membrane and separates only the superficial epithelium leaving behind intact rete ridges of basement membrane for new attachment formation.
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Question:
LANAP therapy:
Answer:
-Typically a full mouth treatment within 7-10 days
-More effective if initial SRP has not been done
-Requires occlusal management (adjustments, splinting, biteguard)
-Requires patient compliance with PO instructions (OH, diet, medications)
Question:
Which type of laser is the most effective at removing periodontal pocket bacteria?
Answer:
Nd:YAG
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Question:
What are the pigment/penetrating lasers?
Answer:
*Absorbed by pigment (Hb and melanin) containing tissue
-Nd:YAG
-Diodes -Argon
Question:
What are the water/surface lasers?
Answer:
*Absorbed by water and hydroxyapatite.
-Erbiums -CO2
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