Gypsum Products
In regards to dimensional accurary, this type of gypsum product has the least amount of setting expansion.
High-strength stones
This is the term for when a dental material gives off heat.
Exothermic reaction
The purpose of dental bonding
To provide adhesion
Three potential side effects of whitening
Condyle pain, tooth sensitivity, gum irritation
This is when an impression whould be disinfected
At the chairside upon removal
This dental gypsum product will require the least water for mixing and will have the highest final density
Dental stone, high strength (Type IV)
This is what has happened when the newly mixed gypsum material loses its glossy appearance
The working time has begun
How the etched surface of a permanent tooth should appear when dried.
Frosty
The best way to protect the gingival tissue during a power whitening appointment
What is a rubber dam
Example of a critical error of a final impression
There is a crease around the margin.
This is the type of model produced when β-hemihydrate is selected as the material of choice
Diagnostic models
An increase in spatulation time and rate will do what to the setting time and the rate of setting expansion.
Shorten the setting time and increase the rate of setting expansion
The reasons that primary teeth need to be etched for longer than adult teeth
Because the surface of the enamel has a prism pattern that is not well structured and the enamel is considered aprismatic
Two examples of the active ingredient used for in-office whitening materials
What are hydogen peroxide and carbamide peroxide
The term for when an alginate impression appears to sweat, showing droplets on the surface
Syneresis
This material is able to withstand the high heat and stress produced when molten metal is forced into molds to form indirect restorations
Dental investment
This technique uses two seperate mixes for fabricating and trimming diagnostic/working casts
Double-pour method
This type of cement can be used for provisional cementation, provisional restorations, periodontal dressings and low strength bases.
What is zinc oxide eugenol (ZOE)
This substance, in addition to pumice, is used to perform enamel microabrasion.
Hydrochloric acid
The reason addition silicone is preferred over a condensation silicone as an impression material
Addition does not distort as badly, it has the smallest rate of dimensional change
This type of gypsum product has a water-to-powder ratio of approximately 0.45 (mL/g).
Model plaster
An example of when a cement would be mixed to a secondary consistency
To cement an intermediate restoration
This type of etch or tooth conditioner is used when seating or repairing ceramic restorations
Hydrofluoric acid
This is how tooth whitening works
Passes through enamel to lighten dentin
An example of a hydrocolloid that is reversible?
Agar