Dental CAD Margin Line Picking With Curvature-Based Point Preview
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Solution Overview
Problem
Existing dental CAD software faces issues with user inconvenience and accuracy when picking margin line points, as users often struggle to accurately select these points on a screen, leading to inconsistent results.
Innovation Solution
A method and device that automatically search for and recommend the optimum margin line point within a generated search area based on the cursor's position, allowing users to easily pick the point by clicking at the current cursor position without further movement, and provide visual feedback for accuracy.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If a user manually picks a margin line point using a mouse on the screen, then the user can select a point, but the accuracy is poor and the process is inconvenient
Solution Approach 1:
The system automatically identifies and outputs the margin line point based on curvature calculation without requiring manual user selection. The computer performs the point selection task itself by analyzing the abutment model data, calculating curvature at different points, and automatically determining the margin line point where curvature exceeds a threshold, thereby eliminating the need for manual mouse operation while ensuring high accuracy
Solution Approach 2:
The manual mechanical mouse operation is replaced with an automated computational system. Instead of using a mouse to manually select points on the screen, the system uses algorithmic curvature analysis of the 3D abutment model data to automatically identify the margin line point, substituting the mechanical interaction with an intelligent computational process
2Manufacturing precision
If the user moves the cursor to accurately locate the margin line point, then the point can be selected, but the process requires precise cursor movements which is time-consuming and error-prone
Solution Approach 1:
The system performs preliminary curvature calculation and analysis on the entire abutment model before the user needs to select a point. By pre-computing curvature values for all points on the model and identifying which points exceed the curvature threshold, the system prepares the margin line point identification in advance, eliminating the need for time-consuming manual cursor movement and trial-and-error selection
Solution Approach 2:
The system autonomously performs the time-consuming task of margin line point identification through automated curvature analysis. Instead of requiring the user to spend time moving the cursor and attempting to locate the correct point, the computer independently analyzes the 3D model data, calculates curvature, and immediately outputs the correct margin line point, dramatically reducing the time required
Data Source
AI summary
A margin line point picking method and a dental CAD device for the same are disclosed. In a margin line point picking method according to one embodiment, while a user picks a margin line point, a preset optimum margin line point is recommended by showing a preview thereof on a screen. Accordingly, it is possible to address the inconvenience that the user has to find and pick an accurate point.