This is a presentation on techniques for making copy dentures

1. Techniques of copy denture
fabrication
BDS/10/18

2. Denture flask technique
• Denture is submerged in alginate

3. • When alginate is set, any flask of the material
base is trimmed with a sharp knife.

4. • The flask is then filled with a new mix of
alginate, avoiding air entrapment, and the lid
is closed.

5. • Alginate halves are separated and the denture
is removed and returned to the patient.

6. • Spur holes is cut into the posterior border of
the alginate mold.

7. • The impression is reassembled and held
together with adhesive tape.Autopolymerizing
resin is added into one of the holes until it
arises from the other.

8. • Lastly the duplicate monochrome denture is removed from
the flask and mounted on the articulator. The pink colour
teeth are replaced by the selected mold of teeth.

9. • Original and auto polymerizing resins upper
and lower template dentures.

10. Soap dish technique
• Denture borders submerged with greenstick
compound then submerged in soap container.

11. • Denture is invested into the lower part of the
container

12. • Second pour of alginate to complete investment
procedure-the soap container to be pressed from the
sides to avoid its distortion

14. • The two halves are opened and the spur holes
cut with a sharp knife. The halves are
reassembled and can be held together with
elastic bands

17. • Two halfs together-self cure resin is poured down one of the
holes with light vibrations. While air escapes from the other,
Place the container with spur holes straight

18. • The waxed or auto polymerized duplicate
dentures recovered from the mold.

19. • Upper and lower templates wax teeth and self
cured acrylic resin bases.

20. • The wax teeth on one of the dentures are then replaced with
identical moulds of the resin teeth. The opposing denture
guides the set up in identical position to the original denture.