Wax Model Base for Dental Implant Abutment Gingival Fit
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Solution Overview
Problem
Conventional wax model bases for dental implant abutments do not effectively form a gingiva-contacting portion that fits an individual patient's gingival shape, requiring separate modeling and increasing production time and workload.
Innovation Solution
A wax model base with specific features such as an engagement portion, truncated conical portion, ring-like stepped portions, and a cylindrical portion, allowing for a wax model to be formed with a shape fitting the gingival shape of an individual patient, including a core portion similar to a dental prosthesis, using a CAD/CAM system to produce an abutment with predetermined shapes.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If a conventional waxing base with cylindrical or truncated conical shape is used, then the production process is simple, but a separate model for the dental prosthesis portion must be produced additionally, increasing time and workload
Solution Approach 1:
The invention merges the waxing base structure with the dental prosthesis model structure into a single integrated unit. The building portion of the waxing base is formed with a shape that directly corresponds to the dental prosthesis portion, eliminating the need to produce separate models for each component.
Solution Approach 2:
The waxing base is designed to serve multiple functions: it provides the foundation for the abutment portion while simultaneously forming the dental prosthesis portion. This multi-functional design allows one component to fulfill roles that previously required separate components.
2Ease of manufacture
If a conventional waxing base is used, then the manufacturing process is straightforward, but the portion coming into contact with gingiva cannot be formed to fit an individual patient's gingival shape
Solution Approach 1:
The building portion of the waxing base is designed with specific local characteristics that correspond to the dental prosthesis portion. The shape, size, and surface features of the building portion are tailored to match the required gingival contact shape, allowing customization while maintaining manufacturing efficiency.
3Device complexity
If the wax model base does not include integrated building portions, then the structure is simpler, but the core portion similar to dental prosthesis cannot be formed with wax at once
Solution Approach 1:
The invention combines the waxing base and the dental prosthesis model into a single integrated structure. The building portion is formed with the same material and in the same manufacturing process as the base, allowing the core portion to be created in one operation rather than requiring separate modeling steps.
Data Source
AI summary
For proper fitness of a core portion of an abutment to a patient, a wax model base for an abutment of a dental implant includes an engagement portion 1 engaging with an implant fixture analog embedded in a gypsum model without rotation, a truncated conical portion 2, a building portion 4 provided directly on an inner peripheral edge of a ring-like first stepped portion 3, which is provided on an oral cavity inner side of the truncated conical portion 2, or through a cylindrical portion 4a having a low height to have a conical shape expanding toward the oral cavity inner side and have a cutoff portion 5 on an outer peripheral surface, a cylindrical portion 7 provided on an inner peripheral edge of a ring-like second stepped portion 6 provided on the building portion 4, and a screw hole 8 along a center axis of the base.