Intraoral Scanner Automatic 3D Scan Update

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Solution Overview

Problem

Intraoral scanning systems face challenges in obtaining error-free digital dental impressions, as existing methods require manual correction and can disrupt continuous scanning sessions.

Innovation Solution

A computer-implemented method and scanner system that automatically update a current digital 3D scan by identifying inconsistent areas and applying new 3D scan data, ensuring continuous scanning without manual intervention.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If manual correction tools are used to correct failed sections of the scan, then the digital impression quality is improved, but the scanning session is interrupted and productivity decreases

Engineering Contradiction:

Improvedigital impression qualityVSAvoidscanning session continuity

Core Design Contradiction:

ReliabilityVSProductivity

Solution Approach 1:

The system performs automatic self-correction by comparing new scan data with the current digital impression, identifying inconsistencies, and replacing erroneous sections without requiring manual intervention from the dentist or technician

Inventive Principle:

Principle #25Self-service

Solution Approach 2:

The system implements a feedback mechanism where new scan data is continuously compared with the existing digital impression, and corrections are applied based on the comparison results, creating a closed-loop quality assurance process

Inventive Principle:

Principle #23Feedback

2Measurement precision

If the dentist independently marks areas for rescanning to correct errors, then the accuracy of correction is improved, but the ease of operation decreases due to additional manual steps

Engineering Contradiction:

Improvecorrection accuracyVSAvoidscanner interface interaction

Core Design Contradiction:

Measurement precisionVSEase of operation

Solution Approach 1:

The system automatically identifies inconsistent areas through comparison algorithms and performs corrections without requiring the dentist to manually mark or select areas for rescanning

Inventive Principle:

Principle #25Self-service

Solution Approach 2:

The manual mechanical process of marking and selecting areas for correction is replaced with an automated computational system that uses image comparison algorithms to identify and correct errors

Inventive Principle:

Principle #28Mechanics substitution (Replace mechanical system)

3Reliability

If new scan data is applied to update the current digital impression, then the digital impression is kept current and reliable, but inconsistencies and errors may be introduced if not properly validated

Engineering Contradiction:

Improvedigital impression currencyVSAvoidscan data consistency

Core Design Contradiction:

ReliabilityVSManufacturing precision

Solution Approach 1:

The system compares new scan data with the current digital impression to identify inconsistencies before applying corrections, ensuring that only validated changes are incorporated

Inventive Principle:

Principle #23Feedback

Solution Approach 2:

The system performs preliminary comparison and validation of new scan data against the existing digital impression before applying any updates, preventing introduction of errors

Inventive Principle:

Principle #10Preliminary action

Data Source

PatentUS20250194933A1Intra oral scanner and computer implemented method for updating a digital 3D scan

Publication Date: 2025.06.19 3SHAPE AS

AI summary

According to an embodiment, a computer implemented method and a scanner system are disclosed. The computer implemented method for updating a current digital 3D scan representing the surface of a physical object with an at least one new 3D scan, where the updating of the current digital 3D scan provides an updated digital 3D scan representation of the surface of the physical object is disclosed. The computer implemented method may comprise obtaining the current digital 3D scan, obtaining the at least one new digital 3D scan, determining an inconsistent digital 3D scan, where at least a part of the new digital 3D scan does not overlap with at least a part of the current digital 3D scan, and creating the updated digital 3D scan, which represent the physical object by applying the inconsistent digital 3D scan to the current digital 3D scan.