CAM-formed Zirconia Denture Occlusal Inserts for Natural Bite

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Solution Overview

Problem

The existing methods for manufacturing dentures to achieve a natural bite feel are time and labor intensive, and plastic artificial teeth suffer from inconsistent sizing and rapid wear, leading to potential esthetic and functional issues.

Innovation Solution

The use of CAM-formed zirconia occlusal inserts, crowns, or overlays that are sized and shaped to create a denture with desired parameters, providing a natural bite feel while maintaining the esthetics of natural teeth and preventing uneven wear.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If traditional iterative denture manufacturing methods are used, then dentures can achieve natural bite feel, but the process is time and labor intensive requiring multiple test-fittings

Engineering Contradiction:

Improvenatural bite feelVSAvoidmanufacturing time

Core Design Contradiction:

ReliabilityVSLoss of time

Solution Approach 1:

The patent applies preliminary action by creating a digital 3D model of the patient's oral structures before physical denture fabrication. This digital planning allows all parameters to be optimized in advance, eliminating the need for multiple iterative test-fittings and reducing manufacturing time while maintaining natural bite feel.

Inventive Principle:

Principle #10Preliminary action

Solution Approach 2:

The patent replaces the traditional mechanical iterative adjustment process with computer-aided design and digital planning systems. By using software to simulate and optimize denture parameters before fabrication, the method eliminates repeated physical trial-and-error adjustments, significantly reducing time loss.

Inventive Principle:

Principle #28Mechanics substitution (Replace mechanical system)

2Ease of manufacture

If plastic artificial teeth are used, then dentures can be manufactured easily, but the teeth exhibit inconsistent sizing and rapid wear

Engineering Contradiction:

Improvemanufacturing easeVSAvoidsizing consistency

Core Design Contradiction:

Ease of manufactureVSManufacturing precision

Solution Approach 1:

The patent replaces traditional mechanical molding of plastic teeth with computer-aided design and precision fabrication methods. This allows each tooth to be manufactured to exact digital specifications, ensuring consistent sizing while maintaining ease of manufacture through automated processes.

Inventive Principle:

Principle #28Mechanics substitution (Replace mechanical system)

Solution Approach 2:

The patent changes the manufacturing parameters from conventional plastic molding to precision-controlled fabrication based on digital models. This enables exact replication of tooth dimensions and morphology, eliminating sizing inconsistencies while keeping the manufacturing process efficient and manageable.

Inventive Principle:

Principle #35Parameter changes

3Ease of manufacture

If plastic artificial teeth are used, then dentures can be manufactured easily, but the teeth suffer from rapid wear leading to functional and esthetic issues

Engineering Contradiction:

Improvemanufacturing easeVSAvoidteeth wear resistance

Core Design Contradiction:

Ease of manufactureVSDuration of action of stationary object

Solution Approach 1:

The patent changes the material and fabrication parameters from conventional plastic molding to precision-controlled fabrication with improved materials. This extends the service life and wear resistance of artificial teeth while maintaining ease of manufacture through standardized precision processes.

Inventive Principle:

Principle #35Parameter changes

Data Source

PatentUS10893921B2Method of making a denture with nature bite and wear properties and denture

Publication Date: 2021.01.19 BITE INNOVATIONS LLC

AI summary

The present invention to a method of denture manufacture that incorporates CAM-formed occlusal portions made of zirconia, resulting in a natural fit, feel, and wear essentially similar to the wear properties of natural teeth.