Laser course Exam 2025 Questions
and Answers 100% Pass
Signs of accidental eye exposure to a laser beam include: - ✔✔gritty feeling, floaters, no
pain
what is the purpose of the aiming beam? - ✔✔It enables invisible laser beams to be
directed at target tissue
which of the following lasers is most likely to cause retinal damage to the unprotected
eye - ✔✔Nd:YAG 1064nm
The CO2 9300nm laser has indications for use that include: - ✔✔caries removal
the wavelength range commonly associated with surgical diode lasers in dentistry is -
✔✔810-1064 nm
compared to soft tissues incised with a scalpel what is an advantage of using a laser? -
✔✔would healing is quicker
a laser-assited biopsy requires - ✔✔laser and conventional cutting instruments
CO2, dental laser beams are delivered by - ✔✔Hollow waveguide
PBM has FDA clearance for which treatment? - ✔✔pain management
COPYRIGHT © 2025 BY GRACE AMELIA, ALL RIGHTS RESERVED 1
, An erbium laser operates in which portion of the electromagnetic spectrum - ✔✔mid-
infrared
the primary purpose of the air and water spray of an Er, Cr.YSSG 2789 nm laser is to -
✔✔cool the surgical site to minimize collateral damage
which of the following treatments describes photodynamic therapy (PDT)? - ✔✔use of
photosensitizing agents and light to kill cancer cells
apthous ulcers treated with a laser - ✔✔become desensitized
how do lased soft tissues compare to soft tissues treated with electrosurgery? -
✔✔lasers achieve longer lasting hemostasis
10,600 nm expressed in microns is (nanometers - 10-9 and microns 10-6) - ✔✔10.60
which of the following is an emission mode that depends on the laser excitation source?
- ✔✔free running pulse
which of the following can be airborne contaminant in a laser generated plume -
✔✔viruses
biospy specimens removed with a dental laser first must be - ✔✔fixed in formalin
clinical indications for using a CO2 laser 10,600 nm laser include - ✔✔leukoplakia
removal ( soft tissue)
research into the application of erbium lasers in endodontics has demonstrated
effciency at - ✔✔reducing bacterial counts within the canal
in photomodiulation, water is absorbed in what part of the cell? - ✔✔mitocondria
which of the following is an indication for use of an erbium laser? - ✔✔zirconium
restoration removal
COPYRIGHT © 2025 BY GRACE AMELIA, ALL RIGHTS RESERVED 2
and Answers 100% Pass
Signs of accidental eye exposure to a laser beam include: - ✔✔gritty feeling, floaters, no
pain
what is the purpose of the aiming beam? - ✔✔It enables invisible laser beams to be
directed at target tissue
which of the following lasers is most likely to cause retinal damage to the unprotected
eye - ✔✔Nd:YAG 1064nm
The CO2 9300nm laser has indications for use that include: - ✔✔caries removal
the wavelength range commonly associated with surgical diode lasers in dentistry is -
✔✔810-1064 nm
compared to soft tissues incised with a scalpel what is an advantage of using a laser? -
✔✔would healing is quicker
a laser-assited biopsy requires - ✔✔laser and conventional cutting instruments
CO2, dental laser beams are delivered by - ✔✔Hollow waveguide
PBM has FDA clearance for which treatment? - ✔✔pain management
COPYRIGHT © 2025 BY GRACE AMELIA, ALL RIGHTS RESERVED 1
, An erbium laser operates in which portion of the electromagnetic spectrum - ✔✔mid-
infrared
the primary purpose of the air and water spray of an Er, Cr.YSSG 2789 nm laser is to -
✔✔cool the surgical site to minimize collateral damage
which of the following treatments describes photodynamic therapy (PDT)? - ✔✔use of
photosensitizing agents and light to kill cancer cells
apthous ulcers treated with a laser - ✔✔become desensitized
how do lased soft tissues compare to soft tissues treated with electrosurgery? -
✔✔lasers achieve longer lasting hemostasis
10,600 nm expressed in microns is (nanometers - 10-9 and microns 10-6) - ✔✔10.60
which of the following is an emission mode that depends on the laser excitation source?
- ✔✔free running pulse
which of the following can be airborne contaminant in a laser generated plume -
✔✔viruses
biospy specimens removed with a dental laser first must be - ✔✔fixed in formalin
clinical indications for using a CO2 laser 10,600 nm laser include - ✔✔leukoplakia
removal ( soft tissue)
research into the application of erbium lasers in endodontics has demonstrated
effciency at - ✔✔reducing bacterial counts within the canal
in photomodiulation, water is absorbed in what part of the cell? - ✔✔mitocondria
which of the following is an indication for use of an erbium laser? - ✔✔zirconium
restoration removal
COPYRIGHT © 2025 BY GRACE AMELIA, ALL RIGHTS RESERVED 2
