Duplicate Denture Fabrication Using Adhesive Bonding and Resin Polymerization
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Solution Overview
Problem
Current methods for constructing implant-supported fixed interim prostheses often result in denture teeth popping out during mastication and lack a backup prosthesis for urgent situations, particularly when converting transitional dentures into definitive prostheses.
Innovation Solution
A method for forming a duplicate denture involves creating an intermediate denture by removing teeth from an original denture, applying adhesive to the gum portion, and filling a mold with resin to create a polymerized duplicate denture that can serve as a backup and guide for the definitive prosthesis, with features like grooved gum sections for enhanced stability and esthetics.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If transitional dentures are converted into implant-supported fixed interim prostheses, then the patient's occlusal vertical dimension is maintained and functional needs are met, but the denture teeth may pop out of the prosthesis during mastication
Solution Approach 1:
The patent applies preliminary action by creating a duplicate denture before the original transitional denture fails or teeth pop out. The duplicate is fabricated in advance using the original as a template, ensuring a ready backup is available before any functional failure occurs. This prevents the harmful effect of teeth popping out by having a pre-prepared replacement prosthesis.
Solution Approach 2:
The patent directly applies copying by creating an exact replica of the original transitional denture. The duplicate denture is made by taking an impression of the original, then fabricating a copy with identical tooth arrangement, occlusion, and aesthetic features. This copying approach ensures the backup prosthesis will function identically to the original, maintaining reliability without requiring complex modifications.
2Reliability
If transitional dentures are converted into fixed interim prostheses, then occlusal vertical dimension is maintained, but no backup prosthesis is available for urgent situations
Solution Approach 1:
The patent uses copying to create a duplicate denture that serves as a backup prosthesis. By replicating the original transitional denture's key features (tooth arrangement, occlusion, aesthetics) rather than creating a completely new complex prosthesis design, the system maintains reliability while minimizing added complexity. The duplicate is essentially a clone of the proven original design.
Solution Approach 2:
The patent applies universality by designing the duplicate denture to be multi-functional. It can serve as: (1) a backup prosthesis for urgent situations, (2) a transitional prosthesis while awaiting definitive treatment, and (3) a reference model for planning the final prosthesis. This multi-functionality increases reliability without proportionally increasing device complexity.
3Productivity
If a duplicate denture is fabricated using conventional methods, then a backup prosthesis is created, but the fabrication process is time-consuming and complex
Solution Approach 1:
The patent applies copying to streamline fabrication by using the original denture as a direct template. Instead of designing and fabricating from scratch, the process involves taking an impression of the original, mounting it on a cast, and fabricating the duplicate by filling the impression with resin. This copying approach dramatically reduces both time and complexity compared to conventional de novo fabrication methods.
Solution Approach 2:
The patent uses preliminary action by preparing the duplicate denture fabrication process in advance while the original is still functional. The impression is taken, the cast is made, and the duplicate is fabricated during routine dental visits rather than waiting for emergencies. This preliminary fabrication approach increases productivity by utilizing normal clinical workflows rather than rushing during urgent situations.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
The method provides a stable and esthetically pleasing duplicate denture that prevents teeth from popping out and serves as a reliable backup, allowing for modification and adjustment during the healing process, ensuring patient satisfaction with improved functionality and aesthetics.
Implementation Method 1
applying an adhesive to the exposed part of the gum portion
Implementation Method 2
polymerizing the first resin thereby forming a duplicate denture
Data Source
AI summary
The fabrication of an implant-supported fixed complete denture involves multiple clinical and laboratory steps. One of the main steps is to provide the patient with an interim fixed prosthesis to evaluate the patient's esthetic and function al needs as well as to enhance the patient's psychology before proceeding to the definitive prosthesis. Different techniques for fabricating interim prostheses have been described in the literature. This disclosure describes a method of fabricating an implant-supported fixed interim prosthesis using self-curing acrylic resin. The interim prosthesis may be used as a blueprint for the definitive implant-supported hybrid prosthesis.