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Ceramic flask technique for duplicating a complete denture.

The Journal of Prosthetic Dentistry

|December 1, 1984

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Duplicate dentures offer versatile applications in prosthodontics, serving as custom trays for impressions and enabling precise adjustments to vertical dimension, esthetics, phonetics, and occlusion before final fabrication.

Area of Science:

Dentistry
Prosthodontics
Dental Materials

Background:

Duplicate dentures are often utilized in prosthodontic workflows.
Their potential applications beyond simple replication are extensive.
Efficiently modifying existing prostheses can streamline the fabrication of new ones.

Purpose of the Study:

To explore and detail the multifaceted uses of duplicate dentures in clinical practice.
To highlight the utility of duplicate dentures as custom trays for impressions.
To demonstrate methods for adjusting vertical dimension, esthetics, phonetics, and occlusion using duplicate dentures.

Main Methods:

Utilizing the duplicate denture as a custom tray for final impressions.
Transferring vertical dimension directly to the articulator if the duplicate denture is acceptable.

Related Experiment Videos

Modifying the vertical dimension intraorally by adding or removing acrylic resin if needed.

Replacing original teeth with stock acrylic resin teeth to test esthetic, phonetic, and occlusal alterations.

Main Results:

The duplicate denture functions effectively as a custom tray for accurate final impressions.
Vertical dimension can be accurately transferred or modified intraorally.
Esthetics, phonetics, and occlusion can be readily adjusted and evaluated on the duplicate denture.
Patient approval of modifications on the duplicate denture facilitates smoother new prosthesis construction.

Conclusions:

Duplicate dentures provide a flexible and valuable tool in prosthodontics.
Their use as custom trays and for iterative modifications simplifies the process of creating new dentures.
Employing duplicate dentures for adjustments prior to final fabrication minimizes potential issues with new prostheses.