Crowns and bridges
Cast Partial Dentures
Milling-technique
Foreword
Foreword
Statics - The fundamental principles
Kennedy Class II
Kennedy Class I
Kennedy Class III
Kennedy Class IV
Preparation of the model for duplication (upper and lower)
Model preparation
Preparing the saddle for relining
Surveying the model
Determining the ideal path of insertion
Fixing the path of insertion
Blocking-out
Alternative model preparation
Fabrication of the upper cast partial denture using silicone duplication
Preparation for silicone duplication
Silicone duplication
Preparation for the refractory model
Fabrication of the refractory model
Surveying the refractory model
Surveying the clasps
Wax-up of the base
Wax-up of the clasps and border lines
Spruing
Investing
Casting
Divesting
Sandblasting
Trimming
Electrolytic polishing
Finishing and polishing
The final fitting
Fabrication of the lower cast partial denture using gel duplication
Preparation for gel duplication
Melting the gel in a microwave
Melting the gel in a duplicating machine
Cooling the gel
Preparation for casting through the model
Fabrication of a refractory model
Hardening the model
Surveying the clasps
Design of the lower cast partial denture
Wax construction
Spruing
Trimming
Finishing
Types of clasp
E clasp
Back action clasp
G clasp
Ring clasp
Bonwill clasp
Modified Bonwill clasp
Roach or Bonyhardt clasps
Construction examples
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Example:
- Kennedy Class IV
- anterior gap
Ensure selected resistance leverage is as long as possible.
The base design is very fine and delicate. An AP-bar enhances phonetics.
