LASERS CERTIFICATION EXAM
Questions With Solved Solutions
Theorized the concept of stimulated emission - ANSWER>>Einstein
What type of interactions occur in diode lasers? - ANSWER>>Photothermal
What type of procedures can Diode lasers do? - ANSWER>>-Intraoral soft tissue
procedures: gingivectomy, biopsy, impression troughing, and frenectomy.
-Bactericidal
-Laser assisted tooth whitening
-Photobiomodulation
When preparing to use a diode laser, the practitioner's first step should be to: -
ANSWER>>Check for PATENCY of transmission
How do CO2 lasers work? - ANSWER>>Articulated arms or hollow waveguides
transmit CO2 laser beams.
CO2 gas is in a chamber with nitrogen and helium and the active medium is
pumped with an electrical current.
What are CO2 lasers mainly used for? - ANSWER>>HEMOSTASIS
Are CO2 lasers used for hard or soft tissue? - ANSWER>>Soft tissue
What type of modes do CO2 lasers use? - ANSWER>>Continuous wave, gated
wave modes (superpulsed mode)
What procedures can CO2 lasers be used for? - ANSWER>>-Incisional and
excisional biopsies, frenectomy, gingivectomy, pre prosthetic procedures,
HEMOSTASIS
, -ablation and vaporization of leukoplakia and dysplasia
Describe safety procedures that must be implemented for use of lasers:
-eye protection
-plume control
-sharps
-warning sign - ANSWER>>-Eye protection: pt, clinical staff, and any observers
must wear protective eyewear for the specific wavelength and optical density
being used
-Plume Control: standard dental high speed evacuation must be used with good
quality masks
-Sharps: scored laser tips must be disposed in sharps container
-Warning sign: need to be in a visible place and access to the operatory limited
Post-operative assessment of a laser procedure is done at intervals determined by
what? - ANSWER>>the laser procedure performed
Describe the laser used in caries detection and how it works - ANSWER>>-
Diagnodent is a portable, battery powered diode laser
-655 nm visible wavelength causes active caries to fluoresce
-amount of fluorescence is measurable and correlated to the size and direction of
the lesion
Describe the reading number for Diagnodent:
-occlusal lesions above 30:
-occlusal lesions 10-30: - ANSWER>>-above 30= need restoration
-10-30= potentially reversible
Questions With Solved Solutions
Theorized the concept of stimulated emission - ANSWER>>Einstein
What type of interactions occur in diode lasers? - ANSWER>>Photothermal
What type of procedures can Diode lasers do? - ANSWER>>-Intraoral soft tissue
procedures: gingivectomy, biopsy, impression troughing, and frenectomy.
-Bactericidal
-Laser assisted tooth whitening
-Photobiomodulation
When preparing to use a diode laser, the practitioner's first step should be to: -
ANSWER>>Check for PATENCY of transmission
How do CO2 lasers work? - ANSWER>>Articulated arms or hollow waveguides
transmit CO2 laser beams.
CO2 gas is in a chamber with nitrogen and helium and the active medium is
pumped with an electrical current.
What are CO2 lasers mainly used for? - ANSWER>>HEMOSTASIS
Are CO2 lasers used for hard or soft tissue? - ANSWER>>Soft tissue
What type of modes do CO2 lasers use? - ANSWER>>Continuous wave, gated
wave modes (superpulsed mode)
What procedures can CO2 lasers be used for? - ANSWER>>-Incisional and
excisional biopsies, frenectomy, gingivectomy, pre prosthetic procedures,
HEMOSTASIS
, -ablation and vaporization of leukoplakia and dysplasia
Describe safety procedures that must be implemented for use of lasers:
-eye protection
-plume control
-sharps
-warning sign - ANSWER>>-Eye protection: pt, clinical staff, and any observers
must wear protective eyewear for the specific wavelength and optical density
being used
-Plume Control: standard dental high speed evacuation must be used with good
quality masks
-Sharps: scored laser tips must be disposed in sharps container
-Warning sign: need to be in a visible place and access to the operatory limited
Post-operative assessment of a laser procedure is done at intervals determined by
what? - ANSWER>>the laser procedure performed
Describe the laser used in caries detection and how it works - ANSWER>>-
Diagnodent is a portable, battery powered diode laser
-655 nm visible wavelength causes active caries to fluoresce
-amount of fluorescence is measurable and correlated to the size and direction of
the lesion
Describe the reading number for Diagnodent:
-occlusal lesions above 30:
-occlusal lesions 10-30: - ANSWER>>-above 30= need restoration
-10-30= potentially reversible
