Module II-Lasers in OS and Perio Flashcards
Laser beams _______ soft tissue and ______ blood vessels, lymphatic vessels and nerve endings.
vaporizes, seals
The NEAR ir 808-1064: does it go deep or shallow?
DEEP, difficult to determine amount of ablation
The NEAR ir 808-1064: how is its bacteria fighting capability?
EXCELLENT as long as the bacteria is pigmented
The NEAR ir 808-1064: can it cause thermal damage?
YES if used outside the proper perameters
The MID ir 2780-2940: How efficient and accurate at ablation?
HIGHLY efficient and accurate ablation tool, precise depth and penetration
The MID ir 2780-2940: how are its coagulation skills?
POOR coagulation, minimal depth of coagulation in comparison to diameter of most blood vessels
The MID ir 2780-2940: how is its bactericidal efficiency?
EXCELLENT
The ir 10,600nm: how precise and accurate?
HIGHLY efficient and accurate ablation tool, VERY precise depth of penetration
The ir 10,600nm: How is the coagulation?
EXCELLENT coagulation properties c/o depth of penetration and diameter are nearly equal
The ir 10,600nm: how is the bactericidal efficiency?
EXCELLENT
How much epithelium absorption (%) happens in the NEAR ir spectrum?
ONLY 5% (95% transmits to the connective tissue)
How much epithelium absorption occurs (%) with the MID and LONG ir lasers?
100%
Why use lasers instead of a knife?
less pain, swelling, scarring, more precision and so on
Why is there less scarring when using lasers? (think type of cell that causes scarring)
less MYOfibroBLASTS
What happens to the healing rate when using lasers?
PROLONGED- Blade 7-10days vs LASER 2-3 weeks
What type of surgical healing occurs with lasers?
SECONDARY INTENTION
Focused lasers in general are used to ______ the tissue
CUT
Defocused lasers in general are used to for _______ vaporization
surface
Contact or Non-Contact? Erbium Laser
Non Contact
Contact or Non-Contact? Nd-YAG and Diodes
DEPENDS! Contact for altering gingiva, Non-contact for apthous ulcers
What happens when a tip is activated? What about inactivated?
Activated it gets HOT…inactive acts as an optical laser
What type of laser is “attractive” for uncovering an implant when BONE is covering the implant?
Er-YAG
What is a good laser for less collateral damage in soft tissue surgery?
CO2 10.6 (pulse)
MORE Power or SMALLER size = laser penetrates _______
DEEPER
LESS power or LARGER size = laser penetration is _______
SHALLOWER
3 parameters for successful surgery: deep thin cuts for incision and wide superficial surface vaporization for tissue ablation is crucial to minimize ______.
scarring
When outlining the incision-use the _____ mode with low fluency and minimize the depth of penetration
GATED
How long does it take for bacteria to recolonize?
10 days`
How long does it take for epithelial tissue to regenerate?
10 days
Never use ______ when using a laser and remove the ______ mask if that gas is being used.
OXYGEN….Nitrous Oxygen
