Dental Band Device with Deflector Pushbutton

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Solution Overview

Problem

Existing dental band devices struggle to efficiently adapt to the unique shape of individual teeth, leading to suboptimal fit and effectiveness during dental procedures.

Innovation Solution

The dental matrix band device incorporates a deflector mechanism with pushbuttons that allow for the adjustment of band geometry to create a conical shape, matching the specific tooth shape by applying pressure to different portions of the band.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Adaptability or versatility

If a fixed geometry band is used, then the device structure is simple, but the band cannot adapt to different tooth shapes

Engineering Contradiction:

Improveband adaptation to tooth shapeVSAvoiddevice structure

Core Design Contradiction:

Adaptability or versatilityVSDevice complexity

Solution Approach 1:

The band geometry is made dynamically adjustable through deflector mechanisms with pushbuttons that allow the band to change shape in real-time. The deflector includes movable elements that can be actuated to modify the band's conical shape, enabling adaptation to different tooth geometries while maintaining a relatively simple overall device structure.

Inventive Principle:

Principle #15Dynamics

2Manufacturing precision

If manual band adjustment is used, then the device structure is simple, but the adjustment precision is insufficient

Engineering Contradiction:

Improveband geometry precisionVSAvoidadjustment mechanism

Core Design Contradiction:

Manufacturing precisionVSDevice complexity

Solution Approach 1:

Manual finger-based band adjustment is replaced with a pushbutton-controlled deflector mechanism. The pushbuttons provide precise mechanical actuation of the deflector elements, enabling controlled and repeatable band geometry adjustments with higher precision than manual manipulation alone.

Inventive Principle:

Principle #28Mechanics substitution (Replace mechanical system)

3Reliability

If the band is tightly fitted to the tooth, then the procedural effectiveness is improved, but the risk of tooth damage increases

Engineering Contradiction:

Improveprocedural effectivenessVSAvoidtooth damage risk

Core Design Contradiction:

ReliabilityVSObject-affected harmful factors

Solution Approach 1:

The deflector mechanism applies localized pressure to specific portions of the band through pushbuttons, creating a conical shape that conforms to the tooth geometry. This localized control allows the band to fit tightly where needed for procedural effectiveness while distributing pressure evenly to avoid concentrated forces that could damage the tooth.

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

This solution enables a more precise and efficient fit around the tooth, improving the effectiveness of dental procedures by allowing for better adaptation to the tooth's geometry.

Implementation Method 1

a deflector mechanism to change the band geometry in a way to create a conical shape adapted to a particular tooth shape

Methodology Applied

Scientific EffectElastic deformation: Elasticity

Data Source

PatentUS12285308B2Dental band device

Publication Date: 2025.04.29 MEDICOM GRP INC

AI summary

Dental matrix band devices including a housing with a band, a tensioning mechanism for the band with the control for the tensioning mechanism controllable by a control knob external to the housing, and at least one deflector pushbutton. The deflector pushbutton(s) applies pressure on an upper or lower portion of the band causing the geometry of the band to change. The resulting band geometry forms a conical loop better matching the configuration of a tooth. In one embodiment two deflector pushbuttons are provided and positioned to apply pressure on the upper or lower portion of the band depending on which deflector pushbutton is depressed in the housing. In another embodiment a single deflector pushbutton unit is provided with a pushbutton at each end.