Term
| is the desirable strength of gypsum materials used indirectly or directly related to the amount of water used? |
|
Definition
| direct relation to strength and amount of water used. |
|
|
Term
| a suitable accelerator and retarder for gypsum would be? |
|
Definition
|
|
Term
| high strength stone may also be called? |
|
Definition
|
|
Term
| the final setting time for gypsum is typically? |
|
Definition
|
|
Term
| when you make replicas from impressions for the purpose of diagnosing a treatment plan the replica is known as |
|
Definition
|
|
Term
| decreasing the setting time will have what results |
|
Definition
| decreased setting time= faster setting |
|
|
Term
| the weakest gypsum product is? |
|
Definition
|
|
Term
| when excess water is not present in a gypsum product, it is known as |
|
Definition
|
|
Term
| what is the best way to mix gypsum |
|
Definition
|
|
Term
| what is the device used to see if setting is complete |
|
Definition
|
|
Term
| if setting time is increased does material set faster or slower>? |
|
Definition
| increased setting time = slower setting of material |
|
|
Term
|
Definition
| a replica on which a restoration or appliance is fabricated. |
|
|
Term
|
Definition
| working replica of a single tooth |
|
|
Term
|
Definition
| used to plan treatment and to observe treatment progress. |
|
|
Term
|
Definition
| a device that simulates the patients occlusion and mastication process. |
|
|
Term
|
Definition
1st gypsum. ground in fine powder and heated in open container.
type II
weakest and least expensive form of gypsum |
|
|
Term
|
Definition
made from gypsum by calcination under steam pressure in closed container.
type III |
|
|
Term
|
Definition
improved stone type IV stone
strongest and most expensive
calcination occurs in calcium chloride |
|
|
Term
| what form of gypsum requires the most water |
|
Definition
|
|
Term
| what form of gypsum takes the least water |
|
Definition
improved/high strength stone
|
|
|
Term
| what form of gypsum is the highest expansion rate |
|
Definition
| plaster is highest expansion rate |
|
|
Term
| what form of gypsum is lowest expansion rate |
|
Definition
|
|
