Clinical Foundations - Final Exam Test Questions Flashcards
During invasive dental surgery this type of water should be used.
sterile water
When assisting with the high volume suction and retracting patient cheek this type of grasp is required
thumb to nose grasp
Rinsing oral cavity is completed by use of
Low volume evacuator and air water syringe
The least desirable method of cleaning contaminated dental instruments is?
manual cleaning
To maintain hinged instruments in good condition, the following chemicals should be used
milk bath
What are the three instrument classifications that are used to determine the method of sterlization?
Critical, semi-critical, non-critical
If instruments cannot be processed immediately, what shoul be done with them?
They should be placed in holding solution is used to prevent blood and debris from drying on the instruments.
Example: moist towels and chemical spray
How does an ultrasonic cleaner work?
The ultrasonic cleaner works by sound waves creating bubbles in the liquid also known as cavitation
What are the 3 types of surface disenfecant?
High-Level (most including bacterial long exposure time)
Medium/Intermediate (destroys all vegetative bacteria, mycobacteria, most viruses and most fungi, but not bacterial spores)
Low-Level Disinfectant (destroys most vegetative bacteria and some fungi, as well as enveloped /lipid viruses, e.g., HBV,HIV)
Idophoros are example of medium level disenfacant - true or false ?
True
intermediate-level hospital disinfectants with tuberculocidal action. (will stain chairs)
Sodium hypoclorate is recomeneded as surface disenfectant - true or false?
False
Sodium Hypochlorite: Broad-spectrum intermediate-level disinfectant ( bleach, may stain chairs)
Alcohol: not effective therefore should not be used
Based on the data printed, what are the five components of the sterilizing cycle?
- Filling Chamber
- Heating
- Sterilizing
- Venting Chamber
- Drying
According to the print, what is the desired sterilizer temperature?
272.2 F
How long does take for the sterilizer to heat to the desired temperature?
25 min and 30 sec
How long does it take to fill the chamber with the distilled water?
1 min and 12 sec
.How do you know if the cycle had been completed without any interruptions?
Bottom of the print displays: “Cycle complete”
Why must surfaces in dental treatment rooms be disinfected or protected with barriries?
to prevent patient to patient transmission of microorganisms
Which regulation requires the use of surface disinfection?
The OSHA Blood-Borne Pathrogen Standard requires the use of surface disenfection
What is the ideal disinfectant?
intermediate - one that can rapidily kill a broad range of bacteria
What are the trhee instrument classifications that are used to determine the method of sterilization?
Critical, semi-critical, and non-critical
What is the basic rule of the workflow pattern in a n instrument processing area?
Linear or semicircular without doubling back - one way flow
If instruments cannot be processed immediately, what should be done with them?
Put them in a holding solution - or under a wet towel/spray them.. to prevent blood and debris from drying on the instrumetns
How can instrument rusting be prevented??
Rust inhibitors - MILK BATH
Why should instruments be packaged before sterilization?
To ensure they are sterile - to maintain sterility (if no package, soon as you take it out it is no longer sterile)
flash sterilization - is only used in emergencies, the instrument must be used right away
What is the primary disadvantage of flash sterilization?
instruments being sterilized are not packed
have to be used right awa
What PPE is necessary when one is processing instruments?
Gown
Mask
Eye protection
utility gloves
When another assistaint is asked to help with the procedure, she or he becomes…
circulating assistant
CADA role is to…
regulate the profession
protect the public
Methods of infection transmission
when dental chart is touched with contaminated gloves, the method of trhasmission is referred to as direct or indirect transmission?
Indirect transmission
Instruments used to “Restore’” the tooth are referred to as…
Restorative instruments
The purpose of precleaning operatory with soap and water is to reduce viruses or bioburden?
Bioburden (left over debris)
A receipt on sterilizer is an example of what type of monitoring system
physical/mechanical monitoring system
What is the purpose of the pink card in sterilizer?
Used to test vacuum feature in pre-vacuum (dynamic air removal) type of sterilizer.
It is Class 2
(SAIT has gravity displacement sterilizer)
This handpiece is used when patient needs a ROOT CANAL treatment
endodontic handpiece (it is slow speed)
These microorganisms are the most difficult to kill
Endospores
BI test is an example of chemical or biological monitoring system
biological - test done oncea day, at the beginning of the day with a full load
This dental speciality diagnoses, treats and prevents maloclusion
orthodontics
what motion is used when you use slow speed handpiece?
Class 3 - movement of fingers, wrists and elbows
(5 involves entire body - avoid this!)
Sink is an example of clinical or housekeeping surface?
Housekeeping
This handpiece is the least versatile
Prophy/screw type contra angle slow speed handpiece
What is Milk bath/rust inhibitor used for?
Hinged instruments (scissors, forceps)
This type of handpiece resembles a sandblaster when in action
Air abrasion handpiece
Due to frequent hand hygiene, health care personell are prone to this condition
irritant dermatatis
What is the purpose of the BI vial
to monitor presence/absense of SPORES
The type of plaque that develops inside DUWLs, consisting of bacterial cells and other microbes, is called:
biofilm plaque
Methods of reducing the level of bacterial contamination in waterlines include all of the following
except:
yearly replacement of all water lines.
(It DOES include…
chemical treatment regimens.
self-contained water reservoirs.
microfiltration. )
The advantages of self-contained water reservoirs include:
dental personnel can select the quality of water used.
maintenance of the water system is under the control of the dental staff.
To reduce the microbial count temporarily and to help clean the handpiece waterlines, they
should be flushed:
for 20 to 30 seconds between patients.
every morning for several minutes.
Backflow from low-volume saliva ejectors can occur when a patient: _
closes his or her lips around the tip of a saliva ejector.
Precleaning can be accomplished using:
a disinfectant that cleans and disinfects.
regular soap and water.
The process of killing all microorganisms, including bacterial endospores, is
sterilization.
Instrument processing should flow in a single loop from dirty, to _____, to storage.
clean, to sterile
The purpose of an instrument holding solution is to: __
prevent the drying of blood and debris on instruments.
An ultrasonic cleaner cleans dirty instruments using sound waves, which cause
cavitation.
& implosion.
To maintain proper care and decrease biofilm buildup, what do you do with the water lines in
the dental office throughout the day?
All waterlines are purged at the beginning of the day for a minimum of 2 minutes.
All waterlines are flushed (high and low volume suctions) for a minimum of 20
seconds between patients
All waterlines are purged (air water syringe) for a minimum of 20 seconds between
patients.
High speed handpieces are flushed
Water conditioning tablets are added to the closed water bottle system to minimizeantimicrobial growth.
Can you describe how and when a full mouth rinse will be performed?
at the end of a procedure using the air water and saliva ejector or when rinsing bad taste, small debris
Patient items are categorized into three Spaulding classifications, what are they?
Non-Critical
Critical
Semi-Critical
What processes are available in dentistry when cleaning all dental devices? List in order from least desirable to most desirabl
a) Manual scrub
b) Ultrasonic
c) Thermal washer
What tests are used to assure sterilization is successful?
a) Biological Tests: Spores done with the first load
b) Mechanical/Physical Tests: Print out
c) Chemical Tests: Color changes when exposed to heat
List and explain the chemical indicator tests available in dentistry
Class 1 chemical indicator - Tape, outside of the pouch
Class 2 chemical indicator - Indicators for use in specific tests such as the Helix/ Bowie Dick test
for the Bravo
Class 3 chemical indicator - Single variable indicators such as indicating a specific temp was
reached inside a package; Tubes, strips
Class 4 chemical integrator - Strip, or Multi parameter self –sealing pouch: pressure, temperature and time.
Class 5 chemical indicator - Strip (Surgical, implants (all that penetrates tissue, and bone)
Correct pressure, Temperature, Time was reached, Vacuum was effective
Class 6 - emulating (similar to class 2 ) checks equipment certain features
You are about to open sterile pouches and cassettes for your patient preventive
appointment. What do you check to ensure instruments are sterile? What quality assurance
must be met to be able to use the pouches and cassettes
Cassettes:
Must have tagging info (steri info, date)
Wrapped packaged class 2 indictor type color change must be noted
After opening the cassette, class 4 integrator strip must be verified for color change
Pouches;
Must have tagging info (steri info, date) on the pouch
Verify color change external and internal
If more than 3 instruments, verify color change on the class 4 integrator strip
While assisting, instruments will have a residue from a dental material. What should be done with the instruments during assisting?
Instruments must be always wiped/cleaned at the point of use with dental gauze
After rubber cup preventive appointment, what should you do with below items? Will you:
discard, place inside patient’s chart, taken apart, keep, sterilize, put back in order of use
- class 4 integrator strip (discard)
- rubber cup (discard)
- high volume suction(discard)
- unused dental gauze (discard)
- sterilizing tag from the cassette or pouch (place inside patient’s chart)
- low volume suction attachment (keep, taken apart, steri)
- intra oral dental mirror (taken apart, keep, steri)
- slow speed handpiece (wiped with gauze or disinfecting wipe, keep, taken apart,
steri) - cassette with used instruments (place instruments in order of use, keep, sterilize)
