For a custom acrylic temporary crown,an indirect technique is preferred over the direct technique for pulpal protection and accuracy.
3.No.7 wax spatula
4.Same side impression trays
10.Large camel hair brush
14.Acrylic monomer and polymer
15.Heavy rubber band
17.Seperating disc on mandrel
18.Sand paper disc on moore mandrel
Cut away thin edges in the gingival area of the overimpression and make an alginate impression of the prepared tooth.
Try the plaster cast in to the overimpression before proceeding.
Seperating medium is painted on the plaster cast.
Mix the acrylic in the dappen dish.
Acrylic is placed in the overimpression.
The cast is seated firmly in the overimpression.
Hold the cast in place with a rubber band.
If the cast is placed to one side,the temporary restoration will be deficient.
Overseating of the cast will produce a temporary restoration with a thin occlusal surface.
The cast can be broken to remove the temporary restoration.
Remove any plaster remaining in the temporary restoration.
Grind off the acrylic flash with a carborundrum disc.
Finish smoothing the margins with a sandpaper disc.
Now the occlusion on the restoration is checked in the mouth.
Occlusion is adjusted outside the mouth.
The restoration is polished with pumice.
An explorer is used to remove cement from the gingival crevice.