Ceramic flask technique for duplicating a complete denture

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.
• 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.