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Impression procedure steps
steps in making impressions on a patient
14
Dentistry
Undergraduate 1
09/03/2013

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Term
step:1 Impression Procedure
Definition
Tumble the container to gently fluff powder. Explain the procedure to the patient
Term
step:2 Impression Procedure
Definition
Select and/or prepare suitable impression tray.
Term
step:3 Impression Procedure
Definition
Dip supplied scoop lightly into powder until scoop is full. DO NOT PACK. tap scoop against rim to ensure that a full measure without voids has been scooped out.
Term
step:4 Impression Procedure
Definition
Empty two scoops of powder into a clean dry mixing bowl for the mandibular impression and three scoops of powder for the maxillary impresstion
Term
step:5 Impression Procedure
Definition
For two scoops, add two-thirds measurement of the alginate powder measuring cup of room temp. water.
Term
step:6 Impression Procedure
Definition
mix water and powder carefully until all powder is wet. once all powder is incorporated, continue to spatulate in a vigorous fashion. DO NOT WHIP OR STIR THE ALGINATE MATERIAL. the spatula should be flattened using pressure against the bowl to reduce incorporating air. regular set material for one minute and fast set material for 45 seconds.
Term
step:7 Impression Procedure
Definition
once the alginate appears homogenous and creamy, put it into the tray. to minimize the trapping of air, wipe the loaded spatula against the tray rim, allowing material to flow from the spatula into the tray
Term
step:8 Impression Procedure
Definition
use a wet finger to smooth the alginate surface, to eliminate any air pockets trapped near the surface, and to remove excess material from posterior areas.have patient breathe through the nose during this time
Term
step:9 Impression Procedure
Definition
insert filled tray into mouth. use the side of the tray to push one side of the cheek out of the way and finger on the other side to do the same thing, and then slide the tray into mouth. for impression of the mandibular arch, ask patient to lift tongue as tray is inserted
Term
step:10 Impression Procedure
Definition
Push up firmly when seating the maxillary tray and press down firmly when seating the mandibular tray. DO NOT OVER SEAT OR PRESS THE TRAY TO TOUCH TEETH. immediatly lift the patients lips loosely over the tray so impression of the oral vestibule and frenula will be captured
Term
step:11 Impression Procedure
Definition
once the material has set, gently break the seal by moving the tray up and down or using the side of a finger at the periphery. snap the tray loose from the arch and remove the impression tray from the patients mouth
Term
step:12 Impression Procedure
Definition
check for and remove any residual material from the mouth, between the teeth, or from around the patients face. give patient a damp tissue and have her or him rinse with warm water
Term
step:13 Impression Procedure
Definition
Rinse impression throughly under running water. spray with disinfectant solution, wrap in a wet paper towl, and place in a labeled plastic bag before pouring. DO NOT STORE IMPRESSION SUBMERGED IN WATER.
Term
Impression Procedure steps
Definition
Obtaining an alginate Impression
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