The document outlines the steps involved in fabricating a removable partial denture, which includes both clinical and laboratory steps. The clinical steps include diagnosis, treatment planning, impressions, framework try-in, and denture insertion. The laboratory steps involve model preparation, surveying, framework fabrication, waxing, flasking, curing, and finishing. Key steps include diagnostic impressions to create study models, designing the prosthesis framework, final impressions, packing denture base material into the mold, curing, and inserting the final denture.
3. Removable Partial Denture
A denture is a replacement for missing teeth and
surrounding tissues.
Complete Denture
Partial Denture
A removable partial denture usually consists of
replacement teeth (Artificial Teeth) attached
to a pink or gum-colored acrylic base
(Denture Base), which is connected by metal
framework (CLASPS) that holds the denture in
place in the mouth.
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10. Treatment Planning
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Result of Evaluating the diagnostic data
Evaluating Oral Condition
Type of Denture
Pre-prosthetic procedures
Equipments preferred to carry out various
procedures
Materials to be use for framework
15. Final 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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16. Model Preparation
After Impression.
By Cast or Die
materials;
Plaster of Paris
Dental Stone
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17. Survey
Used to determine
heights of contour
with a common path
of insertion.
A dental surveyor is
Used
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18. Fabricating Framework
Casting wax Pattern
Block undercuts &
relief areas
Refractory Cast is
invested
Wax is burnt out and
molten metal is
replaced
Finishing &
Polishing
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24. 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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25. Flasking Procedure
Separating Media Application.
Pouring of Plaster.
Insertion of Model.
Cover Model with Plaster except on Tooth &
Wax.
Separating Media Application.
Upper Part Attachment.
Fill Upper Part with Plaster Again.
Cover Upper Tray with Lid & allow it to set.
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29. 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
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30. 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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31. Curing
Polymerization of Denture Base material.
Self/ Chemical Curing.
Heat Curing.
Heat for 45 min
After 45 min allow it to cool
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32. 32
Deflasking
Disassembling of Flask to get
Denture.
Finishing & Polishing
Grinding
Polishing with pumice
Brushes and rag wheels suitable for
polishing
Polishing compound
No. 6 or 8 round bur
Carbide acrylic burs
Sand Paper
Take care not to generate much heat during polishing to avoid warpage of the acrylic
denture base.