The document outlines the steps involved in creating removable partial dentures, detailing the process from initial impressions to final polishing. Key steps include model preparation, framework adaptation, and curing of materials, taking approximately three to six weeks to complete. It emphasizes the importance of precision throughout the various stages including articulation, waxing, and deflasking.

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REMOVABLE PARTIAL
DENTURE STEPS
Ali Daoud
Mahdi Suliman

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Removable Denture
 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. How Are Dentures Made?
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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 :
 Impressions
 Gypsum Model
Preparation
 Articulation
 Framework
(connectors)
 Waxing
 Setup
 Flasking
 De-waxing
 Application of
Separating media
 Packing
 Curing
 Deflasking
 Finishing & Polishing
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5. Impression
 These are negative replica of patients hard and soft
tissues of Oral cavity usually taken using alginate
(Impression Material) in a stock/ custom tray.
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6. Model Preparation
 After Impression.
 By Cast or Die
materials;
 Plaster of Paris
 Dental Stone
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7. Articulation
 Used to determine
heights of contour with
a common path of
insertion.
 A dental articulator is
Used
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8. Frame Work (connectors)
 Adaptating, and
positioning of clasp.
 Cobalt based
 Type IV gold based
alloys
 Chromium based
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9. Waxing
 Temporary Base Plate.
 Support Artificial Teeth.
 Modelling Wax.
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10. Setup
 Placed on Wax Base Plate.
 Acrylics
 Porcelin
 Metal
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Flasking
 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.
 Lower half (which contains the cast).
 Upper half.
 Cover/ Lid.
Lid
Lower Half
Upper Half

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Flasking Procedure
 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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Dewaxing
 Wax Elimination
(removing).
 Boiling Water
for 4 to 6
minutes.
 Excess Wax can
be washed
away with
boiling water. After
Dewaxing

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Application of Seperating Media
 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 (fibers)

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Packing
 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 .

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Curing
 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

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 Deflasking
 Disassembling of Flask to get Denture.
 Take the denture out of the flask.
 Finishing & Polishing (video)
 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
base.

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Thank
you
for
listening.