Dental Restoration Design Using a Functional Bite Interference Model

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Solution Overview

Problem

Current dental restoration methods often fail to accurately simulate occlusal interference, leading to potential issues with jaw closure and movement, as they do not effectively account for the dynamic relationship between opposing dental arches during various bite positions.

Innovation Solution

A system and method that utilize a functional bite map to generate an interference model, allowing for the design of dental restorations that avoid occlusal interference by capturing the relative motion between dental arches and using this data to create a precise interference surface model, which is then used to design and fabricate the restoration.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If traditional dental restoration methods are used without functional bite map simulation, then the fabrication process is simpler and faster, but occlusal interference cannot be accurately predicted, leading to potential jaw closure and movement issues

Engineering Contradiction:
Improveaccuracy of occlusal interference predictionVSAvoidcomplexity of fabrication system
Core Design Contradiction:
ReliabilityVSDevice complexity

Solution Approach 1:

The functional bite map is created in advance during the fabrication process, capturing the dynamic relationship between opposing dental arches before the restoration is finalized. This preliminary simulation allows occlusal interference to be predicted and corrected during design, preventing clinical issues without adding complex post-fabrication adjustment mechanisms

Inventive Principle:
Principle #10Preliminary action

Solution Approach 2:

The system creates a digital copy of the patient's functional bite patterns through the functional bite map, which replicates the dynamic occlusal relationships. This digital model serves as a virtual surrogate for physical articulation, allowing accurate prediction of occlusal interference without requiring complex physical simulation devices

Inventive Principle:
Principle #26Copying

2Manufacturing precision

If a functional bite map is used to generate an interference model, then occlusal interference can be accurately simulated and avoided, but the fabrication process becomes more complex and time-consuming

Engineering Contradiction:
Improveprecision of restoration fitVSAvoidfabrication time
Core Design Contradiction:
Manufacturing precisionVSLoss of time

Solution Approach 1:

The system replaces traditional mechanical articulation methods with a digital functional bite map approach. Instead of physically articulating dental models to simulate jaw movement, the patent uses digital data capture and processing to model occlusal relationships, significantly reducing the time required while maintaining or improving precision

Inventive Principle:
Principle #28Mechanics substitution (Replace mechanical system)

Solution Approach 2:

The functional bite map captures dynamic occlusal parameters across multiple bite positions, transforming static dimensional measurements into dynamic functional data. This parameter transformation allows the system to predict occlusal interference more accurately without proportionally increasing fabrication time, as the digital processing efficiently handles the additional data dimensions

Inventive Principle:
Principle #35Parameter changes

3Measurement precision

If the interference model is generated from multiple bite positions, then the occlusal simulation becomes more accurate, but the amount of data to be processed increases

Engineering Contradiction:
Improveaccuracy of bite position measurementVSAvoiddata processing burden
Core Design Contradiction:
Measurement precisionVSLoss of information

Solution Approach 1:

The system extracts only the essential occlusal relationship data from multiple bite positions, isolating the critical interference patterns from the broader dataset. By focusing on extracting specific functional parameters rather than processing all raw data, the system maintains high measurement precision while reducing the computational burden of data processing

Inventive Principle:
Principle #2Taking out (Extraction)

Data Source

PatentUS11553986B2System and method for fabricating a dental restoration
Publication Date: 2023.01.17 HULTGREN DENTAL TECHNOLOGIES LLC
  • US11553986B2 patent drawing
  • US11553986B2 patent drawing
  • US11553986B2 patent drawing

AI summary

A system for fabricating a dental restoration to restore a tooth at a restoration site in a dentition of a patient is disclosed. The dentition includes a restoration dental arch and an opposing dental arch. The restoration dental arch include the restoration site and the opposing dental arch is opposite the restoration dental arch. The system includes an impression apparatus, a motion capture apparatus, an interface apparatus, and a restoration design system. The impression apparatus is configured to capture an impression of the dentition of the patient. The motion capture apparatus is configured to capture a plurality of location data points that represent the locations of the opposing dental arch relative to the restoration dental arch. The interference model generation system is configured to generate an interference model for the restoration site. The restoration design system is for designing a restoration using the interference model.