Show:
Reversed Q & A
Procedures
Waxes and Resins
While in the Laboratory
Miscellaneous
100
After fabrication, when can a self-cured resin custom tray be used ?
After 24 hours
100
Light cured resin tray materials should be cured for this long
What is 2 minutes
100
Dental wax used to construct occlusal rims and set denture teeth in the wax-up
What is Baseplate wax
100
Advantage of having laboratory equipment and trained personnel in the dental office
What is the dentist or private laboratory technician can handle larger cases
100
Powder to water ratio for high-strength stone
What is 19
200
How will gypsum material be affected if additional powder is added after mixing has begun?
Weaker
200
When taking a face-bow registration, the vertical indicator rod should be aligned with this oral landmark
What is Midline
200
Wax preformed with a thin sheet of aluminum foil between the layers
What is Bite registration wax
200
Regarding infection control in the dental laboratory, it is ________ important as when you are with a patient
What is as equally as
200
This causes air bubbles in a model
What is improper pouring of the impression
300
When would a light gauge, vacuum-formed material be used ?
When making bleaching trays and provisional coverage
300
When constructing a _______ with a vacuum former, use a heavier-gauge, flexible plastic that does not require a spacer but does require an attachment for the strap
What is a mouth guard
300
Type of resin that is formed into a diagnostic model using heat and a vacuum former
What is Thermoplastic
300
Item used to polish or trim custom trays, provisional coverage, dentures, and indirect restorations
What is a Dental Lathe
300
Used to prevent a custom impression tray from sitting too deeply when taking the impression
What are stops
400
How should a patient bite when positioning the bite-fork during a face-bow registration?
Slowly
400
A custom impression tray should fit and adapt well to the model and should maintain ___mm of impression material between itself and the teeth
What is 3 to 4
400
Type of baseplate wax that is softer and is used for denture construction
What is Type I
400
Methods used to protect against biohazard contamination from impressions (2)
What is 1) Disinfecting impressions in the treatment room before bringing them to the laboratory 2) Disinfecting laboratory benches and other contaminated items before and after use
400
Material most durable for occlusal bite registrations
What is Zinc-oxide-eugenol (ZOE)
500
The _____ is the measurement of where the teeth are positioned when the joints are aligned correctly and before the teeth actually come together (2)
1) Bite record 2) Centric relation
500
Techniques used when pouring an impression (3)
What is 1) In small increments 2) In the same place 3) In a continuous flow
500
Light-cured resin can be used to make impression trays for these patients (3)
What is 1) Edentulous 2) Dentulous 3) Partially edentulous
500
Safety precautions in the laboratory (3)
What is 1) PPE should be worn while working in the laboratory 2) Follow Manufacturer's instructions for equipment operations 3)The work areas should be kept clean before and after procedures
500
A plaster mix should be manipulated like this (3)
What is1) Press bowl lightly on the vibrator 2) Mix slowly until smooth 3) Complete mix within 2 minutes