My Presentation in my Class.

1. 1
REMOVABLE PARTIAL
DENTURE STEPS
S.S Hotchandani

2. Denture
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 A denture is a replacement for missing teeth and
surrounding tissues.
 Complete Denture
 Partial Denture
 A removable partial denture or bridge usually
consists of replacement teeth (Artificial Teeth)
attached to a pink or gum-colored plastic base
(Denture Base), which is connected by metal
framework (CLASPS) that holds the denture in place
in the mouth.

3. 3 How Are Dentures Made?

4. The denture development process takes about three to six weeks and several appointments.
Once your dentist or prosthodontist (a dentist who specializes in the restoration and
replacement of teeth) determines what type of appliance is best for you, the general steps
are :
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 Impressions  Flasking
 Model Preparation  De-waxing
 Survey  Application of
 Framework Separating media
 Waxing  Packing
 Setup  Curing
 Deflasking
 Finishing & Polishing

5. Impression
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 These are negative replica of patients hard and soft tissues
of Oral cavity usually taken using alginate (Impression
Material) in a stock/ custom tray.

6. Model Preparation
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 After Impression.
 By Cast or Die
materials;
 Plasterof Paris
 Dental Stone

7. Survey
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 Used to determine
heights of contour with
a common path of
insertion.
 A dental surveyor is
Used

8. Frame Work
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 Adaptating, and
positioning of clasp.
 Cobalt based
 Type IV gold based
alloys
 Chromium based

9. Waxing
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 Temporary Base Plate.
 Support Artificial Teeth.
 Modelling Wax.

10. Setup
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 Placed on Wax Base Plate.
 Acrylics
 Porcelin

11. Flasking
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 The process of investing the cast and a waxed
denture in a flask to make a sectional mould used to
form the acrylic resin denture base.
 Lowerhalf (which contains the cast).
 Upper half. Lid
Upper Half
 Cover/ Lid.
Lower Half

12. Flasking Procedure
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 Vaselin Application.
 Pouring of Plaster.
 Insertion of Model.
 Cover Model with Plaster except on Tooth & Wax.
 Vaselin Application.
 Upper Part Attachment.
 Fill Upper Part with Plaster Again.
 Cover Upper Tray with Lid & allow it to set.

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15. Dewaxing
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 Wax
Elimination.
 Boiling Water
for 4 to 6
minutes.
 Excess Wax can
be washed
away with
boiling water. After
Dewaxing

16. Application of Seperating Media
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 Camel's Hair Brush or Cotton held in
Tweezers.
 Apply everywhere on cast except
Artificial Teeth.
 Allow to cool to room temperature.
 Materials
 Cold mould seal
 Tin foil
 Starch
 Vaselin
 Cellulose Acetate

17. Packing
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 It is act of pressing a denture base material (Dough
Stage) into a mold within flask.
 Rod-like form
 In the upper half of the flask .

18. Curing
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 Polymerization of Denture Base material.
 Self/Chemical Curing.
 Microwave Curing
 Heat Curing.
 Normal Tap Water.
 Heat for 45 min
 After 45 min allow it to cool

19.  Deflasking
 Disassembling of Flask to get Denture.
 Finishing & Polishing
 Grinding lathe
 Polishing lathe with pumice
 Brushes and rag wheels suitable for
polishing
 Polishing compound
 No. 6 or 8 round bur
 Carbide acrylic burs
 Sand Paper
 Muslin buff Wheel
Take care not to generate much heat during polishing to avoid warpage of the acrylic denture
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base.

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