Digital Denture Hole Guider for Binding Position Accuracy
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Solution Overview
Problem
Conventional denture manufacturing methods face challenges in precision and convenience due to positional deviations in binding holes, leading to instability and discomfort for users, as well as increased complexity and error accumulation in the manufacturing process.
Innovation Solution
A digital denture manufacturing method and system that utilizes 3D imaging and scanning to acquire occlusion and implant information, design a virtual binding groove, and manufacture a denture hole guider for precise alignment and drilling, reducing the need for impression acquisition and improving precision.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If a wide binding hole is machined in consideration of manufacturing errors, then the support cylinder can be inserted, but the binding hole position varies significantly and requires expansion, complicating the installation process
Solution Approach 1:
The binding hole is pre-machined at the predicted installation position before the actual installation process. This preliminary action allows the hole to be prepared in advance with appropriate dimensions, eliminating the need for expansion during installation and reducing process complexity while maintaining position accuracy through predictive positioning methods
Solution Approach 2:
A predictive positioning system acts as an intermediary between the denture design and the actual installation. This system calculates and determines the optimal binding hole position based on planned fixture locations and denture geometry, serving as a mediator that translates design intentions into precise manufacturing instructions without requiring complex adjustment procedures during installation
2Reliability
If the binding hole is expanded to accommodate positional deviation, then the support cylinder fits, but the installation stability and durability are lowered due to weak resin support
Solution Approach 1:
The binding hole is pre-machined with precise dimensions and position before installation, eliminating the need for expansion. This preliminary precision work ensures that the hole fits the support cylinder correctly from the start, providing strong resin support and maintaining installation stability without requiring post-holing expansion that would compromise structural integrity
Solution Approach 2:
The invention takes preliminary actions to prevent positional deviation from compromising installation stability. By accurately predicting and pre-machining the binding hole position based on planned fixture locations, the system counteracts potential positioning errors before they occur, ensuring that the resin bond remains strong and the installation remains stable without requiring compensatory expansion
3Manufacturing precision
If an impression acquisition method is used to reduce positioning errors, then the binding hole position can be determined, but the process becomes complicated with many steps and high difficulty
Solution Approach 1:
The invention replaces complex mechanical impression acquisition processes with a predictive digital positioning system. Instead of using physical impressions, models, and multiple adjustment steps, the system uses computational methods to predict the optimal binding hole position based on digital representations of the denture and fixture locations, significantly simplifying the manufacturing process while maintaining or improving position accuracy
Solution Approach 2:
The invention creates a digital copy or model of the denture and fixture arrangement to predict the binding hole position. This digital replication allows for precise calculation and planning of hole positions without requiring physical impressions, models, or trial-and-error adjustments, thereby simplifying the overall manufacturing process while achieving high positioning accuracy
4Ease of manufacture
If the binding hole is machined based on predicted installation position, then the process is simple, but the binding hole position varies significantly from the actual installation position
Solution Approach 1:
A predictive positioning system serves as an intermediary between simple manufacturing processes and accurate position determination. This system calculates the optimal binding hole position based on digital models of the denture and planned fixture locations, providing precise positioning instructions that maintain manufacturing simplicity while eliminating significant position variations through intelligent prediction and planning
Data Source
AI summary
In order to improve manufacturing convenience and precision, the present invention provides a digital denture manufacturing method comprising: a first step of acquiring a three-dimensional work image, on which occlusion information between a target dental arch and an opposing dental arch and implant information of a fixture implanted in the target dental arch are displayed, and preparing a temporary denture in which a binding region formed to correspond to a binding portion profile of an abutment fastened to the fixture is arrayed and arranged; a second step of acquiring an auxiliary scan image for the temporary denture; a third step of acquiring, from the auxiliary scan image, a correction surface image on three-dimensional surface information of an inner surface-side engagement groove of the temporary denture including the binding region; and a fourth step of designing and manufacturing a digital denture having a virtual binding groove corresponding to the position and the shape of the three-dimensional surface information of the binding region, in an inner surface profile set according to the three-dimensional surface information of the engagement groove.