Clinical Foundations - Week 5 PP

Question 1

• An ideal surface disinfectant would:

Answer 1

◦ Rapidly kill a broad spectrum of bacteria
◦ Have residual activity and minimal toxicity
◦ Not damage the surfaces to be treated
◦ Be odorless and inexpensive
◦ Be simple to use
* No single disinfectant product on the market today
meets all these criteria
* When selecting a surface disinfectant, you must carefully consider the advantages and disadvantages of various products

Question 2

IPC across all dental care settings..

Answer 2

Even mobile clinics require the standard/universal precautions..

• water supply
  -disinfection
  -filtration system
  -waste disposal

Question 3

3 types of disinfectants

Answer 3

◦ Sporicidal = kills spores.
◦ Virucidal = kills some viruses.
◦ Fungicidal = kills fungi.

Chemicals that destroy or inactivate most species of pathogenic (disease-causing) microorganisms
* Follow the manufacturer’s guidelines for contact time.

Question 4

Disinfectant Level Types

Answer 4

High-Level - destroys vegetative bacteria, mycobacteria, fungi and
enveloped / lipid and nonenveloped/ non-lipid viruses;
bacterial spores if long exposure time

Intermediate Level - ✓ destroys all vegetative bacteria, mycobacteria, most viruses and most fungi, but not bacterial spores

Low Level - destroys most vegetative bacteria and some fungi, as well as enveloped /lipid viruses, e.g., HBV,HIV

Question 5

• Iodophors

Answer 5

intermediate-level hospital
disinfectants with tuberculocidal action. (will stain chairs)

Question 6

Synthetic Phenol Compounds

Answer 6

EPA-intermediate-level hospital disinfectants with broad-spectrum disinfecting action ( limited use such as glass, metal, rubber)

Question 7

Sodium Hypochlorite

Answer 7

Broad-spectrum
intermediate-level disinfectant ( bleach, may stain chairs)

Question 8

Alcohol

Answer 8

not effective therefore should not be used

Question 9

Morning Routine for Dental Assistants

Answer 9

Arrive 30 minutes before the first scheduled patient
of the day
* Change into scrubs
* Turn on the master switches for the central air compressor and vacuum units if needed
* Start/prepare sterilizers/ other equipment
* Recheck the appointment schedule
* Review patient chart ( any medical alerts, etc.)
* Set up the treatment room for the first patient

Question 10

In between patients

Answer 10

• Assistant will disinfect the room twice and set up
  equipment, plastic barriers etc.
• Water lines will be purged and flushed; 20sec
• Sterile equipment will be set for the patient.
• Disinfected dental materials will be set up

Question 11

Flushed?

Answer 11

Water in - for suction handpieces

Question 12

Purged?

Answer 12

Water out - for high-speed handpieces

Question 13

Day End Routine for Dental Assistants

Answer 13

Cleanup and restock
* Wear exam gloves when emptying waste bins
* Turn off all equipment
* Review appointment schedule for
the next day
* Ensure that instruments, patient records, and laboratory work are ready for the next day and that the sterilization center has been cleaned
* Place soiled protective clothing in appropriate container
* Change from scrubs before leaving the clinic

Question 14

PPE Requirements Summary

Answer 14

✓ Beginning of the day: Dust off with soap and water: no PPE needed
✓ Disinfection: (use of wipes) exam gloves, mask, eye protection
✓ Set up for dental appointment ( instruments, materials, barriers): clean hands + eye projection
✓ Assisting with procedures
✓ PPE as per aerosol or non aerosols
✓ Clean up after appointment (instruments/ barriers removal) utility gloves, mask, eye protection
✓ Disinfection of the operatory after patient dismissal (double): exam gloves, mask, eye protection/ face shield
✓ Line flushing and purging is done with clean hands