Denture Base Manufacturing Using Integrated Bite Registration Trays
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Solution Overview
Problem
Current methods for manufacturing full denture bases require multiple impressions and separate measurements to determine bite position and height, making the process complex and time-consuming for edentulous patients.
Innovation Solution
A method using a set of maxillary and mandibular impression trays with U-shaped grooves and projecting parts to simultaneously determine and record bite position and height, allowing for the direct transfer of this data to the impression material, which is then used to manufacture a full denture base without the need for separate measurements.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If multiple impressions and separate measurements are taken to determine bite position and height, then manufacturing precision is improved, but device complexity and time consumption increase
Solution Approach 1:
The patent combines the functions of determining bite position, height, and taking impressions into a single integrated process. The maxillary and mandibular impression trays are designed with positioning structures that simultaneously capture both the impression of the alveolar ridge and the bite relationship data, eliminating the need for separate measurement procedures.
Solution Approach 2:
The impression trays are designed to perform multiple functions: taking the impression of the edentulous jaw and simultaneously determining bite position and height. The positioning structures on the trays enable them to serve as both impression-taking devices and bite-registration devices, reducing the overall complexity of the manufacturing process.
2Manufacturing precision
If multiple impressions and separate measurements are taken to determine bite position and height, then manufacturing precision is improved, but time consumption increases
Solution Approach 1:
The patent merges the time-consuming separate measurement procedures into the impression-taking process itself. By incorporating positioning structures on the impression trays that automatically capture bite position and height data during impression taking, the overall manufacturing time is significantly reduced while maintaining accuracy.
Solution Approach 2:
The positioning structures on the impression trays are designed to pre-determine and record bite position and height data during the initial impression-taking process. This preliminary capture of all necessary data eliminates the need for subsequent separate measurement steps, thereby reducing total manufacturing time.
3Measurement precision
If separate measurements are taken to determine bite position and height, then measurement precision is improved, but device complexity increases
Solution Approach 1:
The impression trays are designed with integrated positioning structures that enable them to simultaneously perform impression taking and bite measurement functions. This multi-functionality eliminates the need for separate complex measurement apparatus while maintaining measurement precision through the built-in positioning features.
Data Source
AI summary
A full denture base manufacturing method is provided that can easily manufacture a full denture base, using a set of maxillary impression tray and a mandibular impression tray for taking an impression from a patient including an edentulous patient.An impression material is applied on each of a maxillary impression tray 3 and a mandibular impression tray 4 configuring a set of impression trays, and respectively having a U-shaped groove, the U-shaped groove having a front surface side on which the impression material is to be applied and being provided with projecting parts 1 on a back surface side thereof, and the applied impression material is pressed against an alveolar ridge within an oral cavity and set, to determine bite position and height in a state in which at least a part of flat top surfaces of the projecting parts 1 contact each other, the second impression material is applied between back surfaces of the impression trays 3, 4 and set in a state in which at least a part of the flat top surfaces contact each other, each of the impression trays 3, 4 and the impression material are removed from within the oral cavity in one piece of the maxillary and mandibular impression trays, or separately in two pieces of the maxillary and mandibular impression trays, and a model material is thereafter injected to each impression material on the removed maxillary and mandibular impression trays and set, in order to manufacture an edentulous jaw model, and the edentulous jaw model is set on an articulator in a state in which the bite position and height that are determined in advance are reflected, in order to manufacture a full denture base.