Study sets, textbooks, questions
Upgrade to remove ads
Dental material ch 21 disinfection of impressions, dentures and other appliance and materials
Terms in this set (17)
barrriers in lab, eye wear, mask, glove
which is preferred: immersion or spraying to disinfect the impression and why?
spraying not as effective due to constant contact with all areas are not assured
what do all impression material have in common?
they all contain iodophors
is a preparation containing iodine complexed with a solubilizing agent, such as a surfactant or povidone
The result is a water-soluble material that releases free iodine when in solution.
what prosthetics is iodophors found in ?
complete dentures, removable appliances, fixed prosthesis
Sterilization/Disinfection of Items Used During Manipulation of Dental Materials
wipe down wi cavity wipe
ALL the steps when cleaning and appliance
Work area is clean and infection control protocol is observed: gloves, mask, glasses on operator
Student has observed and noted defects BEFORE taking appliance to sterilization for cleaning.
C. St. has placed paper towel in sink when holding denture
D. St. has shown proper way to handle denture when cleaning
E. St. has placed denture in clear sandwich bag with proper solutions before using ultrasonic cleaner and after placement in ultrasonic.
F. St has DOUBLE-sealed bag when denture is in ultrasonic.
G. St. has demonstrated proper way to remove any residual calculus/ stains using brush
H.St has placed denture in bag with diluted mouthwash.
I.St rinses denture w/ water before returning denture to patient!
Immediately after an impression is taken, it must be rinsed under running water to remove saliva or blood. This step is essential before the impression can be disinfected. (T F)
What is the routine immersion time for disinfecting a metal dental prosthesis?
After chairside adjustments are made to a dental prosthesis, it is cleaned, disinfected, rinsed, and stored. The recommended storage method is:
•A. Placement of prosthesis back on pt's stone cast
•B. An individualized, plastic, closed container for each pt, similar to those used for overnight soaking
•C. A zippered plastic bag containing mouthwash and water
•D. A zippered plastic bag containing sterile water
•C.A zippered plastic bag containing mouthwash and water
Glutaraldehydes are acceptable as sprays due to their low toxicity.
•B. False (NO! Extremely toxic, not made in spray form)
2. Chairside adjustments of appliances may be performed with a unit dose of abrasive, a sterile handpiece and bur, and a sterile rag wheel for polishing. This eliminates the need for disinfecting the appliance before handling.
3. All but one of the following steps must be performed when disinfecting a removable dental appliance before making laboratory adjustments. Which one is the EXCEPTION?
a.Handle a contaminated appliance with gloved hands
b.Clean ultrasonically by placing the appliance directly into the solution in the ultrasonic unit holding tank
c.Rinse the appliance under running water
d.Shake to remove excess water
e.Disinfect the appliance by spraying it with, or immersing it in, an acceptable disinfectant and then allowing contact for the time specified by the manufacturer.
4. In the laboratory, when polishing dentures that have been worn by a patient, it is not necessary to use a sterile rag wheel. This is because the dentures will be disinfected before and after any adjustment is made.
a.Both the statement and the reason are correct.
b.Neither the statement nor the reason is correct.
c.The statement is correct, but the reason is not.
5. After chairside adjustments are made to a dental prosthesis, it is cleaned, disinfected, rinsed, and stored. The recommended storage method is:
a.Placement of the prosthesis back on patient's stone cast
b.An individualized, plastic, closed container for each patient, similar to those used for overnight soaking
c.A zippered plastic bag containing mouthwash and water
d.A zippered plastic bag containing sterile water
6. The primary goal of infection control when handling and disinfecting impressions, dentures, and appliances is to:
a.Protect the patient from the laboratory personnel
b.Protect the laboratory personnel from the patient
d.Prevent contamination of equipment in the dental laboratory
7. Disinfection by immersion is preferred over disinfection by spraying. The most important reason is because:
a.Office personnel don't have the necessary time available to spray thoroughly
b.The spraying procedure must be performed twice, with 10 minutes in between
c.Constant contact of the spray with all surfaces of the impression cannot be assured
d.The aerosol produced is usually toxic
Sets found in the same folder
Dental materials chapter 25
Dental material chapter 1
dental materials ch 27 - taking alignment impressi…
Dental materials ch 8
Other sets by this creator
PHARM CH 5 && 6
PHARM ch 4
comm exam one
Other Quizlet sets
Further stats ch8 fact sheet
12th Grade Science Student Safety Contract (Genera…
Env. Sci exam