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Describe the seven steps involced in processing dental instruments
- 1.transport
- 2.cleaning
- 3.packaging
- 4.sterilization
- 5.storage
- 6.delivery
- 7.quality
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3 most common methods of heat sterilization; disadvantages and advantages?
- -Dry heat:ortho, oral surgery, 1 hour, dry fast, no corrosion
- disadv. no plastic or fabric, cannot sterilized liquids
- -Chemical vapor sterilizer:Does not cause rust, 20 min
- disadv. not environmental friendly, special solution, damage plastic and rubber
- -Steam autoclave: steam under pressure, short time, no corrosion, quick dry
- disadv. damage plastic and rubber, uses distilled water, instruments must be dry.
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Precautions necessary when materials are packaged for sterilization?
- -keep bag sealed for instruments to remain sterile
- -Process indicators
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Steps required for sterilization of a high-speed dental handpiece?
- 1.remove and wipe debris off, flush water
- 2.remove bur and handpiece from hose
- 3.ultrasonic clean if recommended, drain, attach hose & operate
- 4.no ultrasonic recommended, scrub with brush, water & soap
- 5.lubricate if require
- 6.no lubricant, use non lubricant cleaner
- 7.follow manufacture instructions
- 8.re-attach hose
- 9.use cotton tip with isopropyl alcohol
- 10.flush water & air lines
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Differences between process indicators and process integrators?
- indicators are placed outside package.
- integrators are placed inside.
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When and how biologic monitoring is done?
- Weekly
- 1. PPE, place B1 strip in bundle of instruments & seal package
- 2. Place pack with B1 in center
- 3. Place reminder of packages
- 4. Remove PPE & wash hands
- 5. Record info date, time estc..
- 6. Remove B1 strip
- 7. mail spore test strip & control B1 to monitoring service
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What is the primary disadvantage of "flash" sterilization?
Can only use unwrapped instruments adn unwrapped instruments are no longer sterile once removed.
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What are the 3 forms of sterilization monitoring?
- -Physical: temperature, pressure, exposure time
- -chemical: change colors when exposed to certain conditions
- -biologic: only way to verify sterilization
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how sterilization failures occur?
Improper instrument cleaning, packaging or sterilizer malfunction and timing.
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What are the limitations of liquid chemical sterilants?
Rubber dam frames, shade guides, x-ray film-holding devices are damaged
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What are the the classification of instruments used to determine the type of processing that should be used?
critical, semicritical, noncritical
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Critical instruments?
penetrate soft tissue & bone
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semicritical instruments?
Contact with oral tissues but does not penetrate soft tissue or bone
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noncritical instruments?
Intact skin only
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What is the pusrpose of holding solution before instrument processing?
- If instruments cannot be cleaned immediately after procedure, place in holding solution.
- To prevent drying of blood & debris
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What are the safety precautions necessary when one is operating an ultrasonic cleaner?
PPE and set of tongs
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What are the CDC Guidelines for sterilization and disinfection of patient care items?
- - Use only FDA cleared medical devices.
- - clean & heat sterile before use of instruments
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What are the CDC Guidelines for cleaning and decontamination of instruments?
- - Minimize handling of loose contaminated instruments during transport
- - clean debris
- - use automated equipment
- - heavy duty gloves
- - PPE
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What are the CDC Guidelines for preparation and packaging of instruments for sterilization?
- - Use internal chemical indicator inside package
- - Use container wrapping
- - Before strilization of critical adn semicritical instruments inspect instruments cleanliness
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