Light-Based Aligner Seating to Improve Fit Without Chewies

Resolve Bottlenecks,
Find Innovative SolutionsGenerate Solutions

Solution Overview

Problem

Existing aligners often fail to fit snugly over teeth, causing discomfort and delaying orthodontic treatment due to geometrical mismatches, and current solutions like aligner chewies can cause jaw soreness and aligner damage.

Innovation Solution

A light-based aligner seating device using low-level laser light (LLLL) or LEDs to temporarily soften aligners, facilitating better fit and reducing discomfort by applying light radiation through a mouthpiece while gently biting down.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Productivity

If aligners are made with geometrical mismatch to induce orthodontic force, then orthodontic treatment effectiveness is improved, but aligner seating difficulty increases

Engineering Contradiction:

Improveorthodontic treatment effectivenessVSAvoidaligner seating difficulty

Core Design Contradiction:

ProductivityVSEase of operation

Solution Approach 1:

The patent applies low-level laser light or LED light to change the physical state of the aligner material temporarily. The light energy causes localized heating or molecular vibration that reduces the stiffness and increases the flexibility of the thermoplastic aligner material, allowing it to conform more easily to the teeth geometry during seating while maintaining the necessary geometrical mismatch for orthodontic force application.

Inventive Principle:

Principle #35Parameter changes

2Manufacturing precision

If aligner chewies are used to help seat aligners, then aligner fit is improved, but jaw soreness and aligner damage occur

Engineering Contradiction:

Improvealigner fitVSAvoidjaw soreness and aligner damage

Core Design Contradiction:

Manufacturing precisionVSObject-affected harmful factors

Solution Approach 1:

The patent replaces the mechanical chewing action of aligner chewies with a light-based energy system. Instead of applying repeated mechanical compression forces that cause jaw soreness and potential aligner damage, the invention uses low-level laser light or LED light to directly modify the physical properties of the aligner material, achieving softening and improved seating without harmful mechanical forces.

Inventive Principle:

Principle #28Mechanics substitution (Replace mechanical system)

Solution Approach 2:

The light energy acts as an intermediary between the user and the aligner material. Rather than directly applying mechanical force through chewies, the light serves as a mediator that transfers energy to the aligner material to temporarily alter its properties, enabling easier seating without the need for repeated mechanical compression that causes harm.

Inventive Principle:

Principle #24Intermediary (Mediator)

3Duration of action of stationary object

If aligners are worn after periods of not wearing them, then treatment continuity is maintained, but seating difficulty increases due to tooth movement

Engineering Contradiction:

Improvetreatment continuityVSAvoidseating difficulty

Core Design Contradiction:

Duration of action of stationary objectVSEase of operation

Solution Approach 1:

The patent uses light energy to temporarily change the physical parameters of the aligner material, specifically reducing its stiffness and increasing its flexibility. This allows the aligner to adapt to tooth movements that occur during periods of non-wear, enabling successful re-seating while maintaining treatment continuity. The light treatment creates a temporary window of increased material compliance that accommodates physiological tooth shifts.

Inventive Principle:

Principle #35Parameter changes

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

Improves aligner seating, ensuring proper orthodontic force application and accelerating treatment by minimizing discomfort and aligner damage.

Implementation Method 1

A light-based aligner seating device and methods are described herein that can soften aligners to improve the fit between the aligners and the teeth.

Methodology Applied

Scientific EffectPhotothermal effect: Heating

Implementation Method 2

devices and methods to facilitate sealant and seating of the aligners using low-level laser light (LLLL) or light-emitting diodes (LED)

Methodology Applied

Scientific EffectLow-level laser light (LLLL) or light-emitting diodes (LED): Laser

Data Source

PatentUS12472037B2Light-based aligner seating apparatus and methods

Publication Date: 2025.11.18 PERIOTECH LLC

AI summary

A device and method for seating orthodontic aligners over the dentition of a user includes a light-based device having a bite plate or mouthpiece, with light-emitting elements, for contacting the aligners. Instructions are provided for using of the light-based aligner seating device by placing the mouthpiece over the aligners, applying light radiation during a predetermined number of sessions throughout a predetermined treatment period, wherein the seating and the fit between the aligners and teeth are better than without use of the light-based device.