Flasking Flashcards
When do you carry out flasking?
after wax try-in
What step is happening here?
petroleum jelly applied to flask
Prior to flasking, what should the completed dentures on the models be soaked in?
water
What is the lower portion of the denture flask filled with?
plaster of paris
After lacing plaster of paris into one half of the flask, what do you do?
place denture on cast into plaster
Do you smooth the plaster of paris after placing denture into it?
yes, smooth and leave to set
What do you do just before the plaster of paris sets fully to create a smooth finish?
run under tap - to remove and excess ad use a finger to achieve the final smooth finish
Why do apply sodium alginate here?
separating agent
remove metal disks from thicker sections
after plaster of paris has set
What is brushed onto the denture an dplaster of paris prior to topping the flasks?
sodium alginate
How long does plaster of paris take to set?
45 mins
when do you apply sodium alginate to teeth and plaster of paris?
after plaster of paris has set - 45 mins
After applying sodium alginate, what do you do?
prepare smooth mix of gypsum in the form of stone
What is being added to the model here?
prepare smooth mix of gypsum in the form of stone
Why is the smooth mix of gypsum in the form of stone being added by hand here?
applied to wax surfaces around artificial teeth in order to expel any air
Once you have covered the wax mould with smooth mix of gypsum in the form of stone, what do you do?
add the other half of the flask
fill deeper portion of flask with it
tap to relieve of air bubbles
set time 45 mins
