Dental Bite Block with PVS Cavity for Stability

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Solution Overview

Problem

Existing dental bite blocks lack sufficient stability and complexity in manufacturing due to the combination of rigid and deformable materials, which affects their ability to maintain a secure fit during dental procedures.

Innovation Solution

A dental bite block device featuring a U-shaped channel filled with polyvinyl siloxane (PVS) dental impression putty, where the putty forms a solid half cylinder with tooth impressions upon curing, providing stability and customization, and includes a saliva ejector clip for improved design.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Ease of operation

If the bite block is constructed with both rigid and deformable materials to form tooth impressions, then the fit and comfort are improved, but the manufacturing complexity increases

Engineering Contradiction:
Improvefit and comfortVSAvoidmanufacturing complexity
Core Design Contradiction:
Ease of operationVSDevice complexity

Solution Approach 1:

The bite block is divided into two functional segments: a rigid body portion for structural support and a deformable impression material portion for customization. This segmentation allows each part to perform its specific function optimally while simplifying the overall manufacturing process by using separate materials for different purposes.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The invention uses composite construction by combining rigid plastic material for the body with deformable impression material for the tooth-contact surfaces. This composite approach enables the bite block to simultaneously achieve structural integrity and customized fit, resolving the contradiction between manufacturing simplicity and operational comfort.

Inventive Principle:
Principle #40Composite materials

2Force

If the bite block uses a wedge force to maintain position, then it can hold the mouth open, but the stability is insufficient and the block may slip

Engineering Contradiction:
Improvewedge forceVSAvoidstability
Core Design Contradiction:
ForceVSReliability

Solution Approach 1:

The invention changes the physical parameters of the bite block by incorporating deformable impression material that can adapt to the patient's teeth. This material deformation creates a customized fit that significantly increases friction and adhesion forces, transforming the simple wedge force mechanism into a multi-force stabilization system that prevents slippage.

Inventive Principle:
Principle #35Parameter changes

Solution Approach 2:

The deformable impression material creates a negative copy or impression of the patient's teeth surface. This copied geometry allows the bite block to conform precisely to the unique tooth arrangement, distributing forces evenly and maximizing contact area, thereby greatly enhancing stability beyond what a simple wedge force could achieve.

Inventive Principle:
Principle #26Copying

3Adaptability or versatility

If the bite block uses plastically deformable impression material for surfaces, then customization is achieved, but the material complexity increases

Engineering Contradiction:
ImprovecustomizationVSAvoidmaterial complexity
Core Design Contradiction:
Adaptability or versatilityVSDevice complexity

Solution Approach 1:

The invention applies local quality by using deformable impression material only on the specific surfaces that contact the teeth, while the rest of the bite block body remains rigid. This localized application of different material properties achieves customization where needed while maintaining manufacturing simplicity in other areas, resolving the contradiction between adaptability and material complexity.

Inventive Principle:
Principle #3Local quality

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 device achieves enhanced stability and customization by forming a secure fit with the patient's teeth, reducing slippage and improving comfort, while simplifying the manufacturing process by using a single type of rigid plastic material.

Implementation Method 1

the patient's upper and lower teeth rest open on the front wall. Once the PVS putty cures and sets, it forms a solid half cylinder-shaped member that includes dentition impressions

Methodology Applied
Scientific EffectElasticity: Elasticity

Implementation Method 2

Once the PVS putty cures and sets, it forms a solid half cylinder-shaped member

Methodology Applied
Scientific EffectChemical Bonding: Chemical Bonding

Data Source

PatentUS10939979B2Dental bite block device
Publication Date: 2021.03.09 LOMBARDI DOMENIC G
  • US10939979B2 patent drawing
  • US10939979B2 patent drawing
  • US10939979B2 patent drawing

AI summary

A dental bite block device includes a front wall, a flat lateral sidewall, and a concave lateral sidewall that define a longitudinal channel that extends through the device. The lateral sidewalls are connected by a crossbar, and the channel can be filled with polyvinyl siloxane (PVS) dental impression putty. When the device is positioned in the patient's mouth, the flat lateral sidewall faces the right inner check of the patient, the patient's tongue rests against the concave lateral sidewall, and the patient's upper and lower teeth rest open on the front wall. Once the PVS putty sets, it forms a solid half cylinder-shaped member that includes impressions of a plurality of the patient's upper and lower teeth, which assist to maintain the device in place. The front wall and concave sidewall further include an opening that defines a clip for a saliva ejector.