Dendritic Base Structure for 3D-Printed Dental Objects
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Current base structures in three-dimensional printing for dental objects face challenges in ensuring efficient force transfer to the build platform while maintaining adhesion and allowing free material flow, particularly under process forces in stereolithography.
Innovation Solution
A dendritic base structure is generated on the build platform, which includes a main structure with outward extensions forming branches and twigs, allowing for efficient force distribution and material flow during the printing process.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a polymerized surface of a base structure is used to enhance adhesion, then adhesion of the object to the build platform is improved, but material flow is hindered due to the barrier effect
Solution Approach 1:
The base structure is segmented into a dendritic configuration with multiple branches and twigs rather than a continuous solid structure. This segmentation creates open spaces between branches that allow manufacturing material to flow freely while the distributed branch structures provide sufficient adhesion contact points with the build platform.
Solution Approach 2:
Different regions of the base structure have different properties: the branch surfaces provide adhesion enhancement through polymerized surfaces, while the spaces between branches maintain openness for material flow. This local differentiation allows simultaneous achievement of adhesion and material flow requirements.
2Manufacturing precision
If forces are transferred efficiently from the dental object to the build platform, then positional accuracy is improved, but process forces increase causing potential damage
Solution Approach 1:
The dendritic base structure segments the force transfer path into multiple branch points distributed across the build platform. This distributes the total force into multiple smaller force vectors, reducing peak stresses while maintaining overall positional accuracy through the collective stability of all branches.
Solution Approach 2:
The base structure extends forces into multiple spatial dimensions through its branching configuration rather than concentrating forces in a single plane or point. This multi-dimensional force distribution reduces the magnitude of forces at any single interface while maintaining overall structural stability.
3Productivity
If uncured manufacturing material is removed quickly from interstices, then manufacturing speed is improved, but adhesion may be compromised
Solution Approach 1:
The dendritic structure naturally segments the material retention areas into discrete interstices between branches rather than a continuous retained material layer. This segmentation allows rapid removal of uncured material from these discrete spaces through capillary action or pressure equalization while the branch structures themselves maintain adhesion to the build platform.
Solution Approach 2:
The design extracts the material flow paths from the base structure by creating open spaces between branches, effectively removing the barrier that would otherwise trap uncured material. This extraction allows quick material removal while the remaining branch structures preserve adhesion functionality.
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 dendritic base structure effectively transfers forces to the build platform, supports the dental object, and facilitates rapid removal of uncured manufacturing material, enhancing the manufacturing efficiency and stability of the dental object.
Implementation Method 1
The dendritic base structure provides the technical advantage of efficiently transferring forces from the dental object to the build platform
Implementation Method 2
a good material flow is characterized by a faster pressure equalization when separating and feeding the build platform by the manufacturing material flowing in or pressed out along the polymerized structure
Implementation Method 3
In stereolithography, however, there are processes in which the object is subjected to forces during production
Data Source
AI summary
A manufacturing method for a dental object (100) including the steps of generating a dendritic base structure (101) on a build platform (103) and building the dental object (100) on the dendritic base structure (103) by a three-dimensional printing method.