Vocabulary
The dental lab device that simulates the mandible and TMJ movement when models of the dental arches are attached to it
articulator
what piece of equipment is used to grind away plaster and stone
model trimmer
How are undercuts corrected on a custom tray model
filled with wax or other material
What are gypsum materials mixed in/on
rubber bowl with spatula
On a model the ___ arch is measured and trimmed first
maxillary
Two parts of water to one part calcium sulfate in relation to gypsum product
dihydrate
#__ is the most common spatula size in lab
7
What type of was would be used to obtain a patient’s occlusal impression
Bite registration
When mixing gypsum is it “water to powder” or “powder to water”
powder to water
What area on the maxillary and mandibular model is trimmed differently from the other
anterior portion
The removal of water to become one part half water to one part calcium sulfate
hemihydrate
What dental instrument is used to determine centric relation on diagnostic model
face bow
To extend an impression tray, what type of wax would be used
utility wax
When pouring an impression, where in the maxillary impression do you begin to place the gypsum
posterior
What type of custom tray is made for vital bleaching procedures
vacuum formed thermoplastic resin
Mixture of gypsum and water used in the finishing of models
slurry
what is gypsum mixed in
bowl
What type of wax could be used to form a wall around a preliminary impression when pouring it
boxing wax
How long should you wait before separating the model from the impression
45-60 mins
Light cure and self cure are the two ways ____ can harden
resin
Another name for a dental model
study cast
What type of material is used for vacuum-formed custome trays
thermoplastic resin
What is the most common wax used to create a pattern for an indirect restoration
inlay casting wax
What are the 5 forms of gypsum
impression plaster, model plaster, dental stone, high strength stone, die stone
3 advantages of digital models compared to conventional plaster study models
unbreakable, impossible to misplace, no lab setup, takes up less storage space, can duplicate for free