Alditol Powder Blasting for Gentle Tooth Cleaning
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Solution Overview
Problem
Conventional powders for powder-jet devices are either too abrasive for sensitive tooth surfaces or require costly and laborious preparation, and they often cause unpleasant side effects and nozzle wear, while existing gentle powders may not provide optimal cleaning efficiency and are difficult to process in devices.
Innovation Solution
The use of alditols such as mannitol, erythritol, and xylitol, which are sugar alcohols with low density and suitable particle sizes, that are easily mixed and swirled, providing effective cleaning without excessive abrasiveness and nozzle wear, and can be manufactured directly without grinding or sieving.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If conventional powders like sodium bicarbonate or Iceland spar are used for powder blasting, then cleaning efficiency is improved, but abrasiveness increases causing damage to sensitive tooth surfaces
Solution Approach 1:
The patent changes the chemical composition parameter by substituting conventional abrasive powders (sodium bicarbonate, Iceland spar) with amino acid-based powders (glycine, L-alanine, L-valine) that have fundamentally different material properties. This parameter change achieves both good cleaning efficiency and reduced abrasiveness on sensitive tooth surfaces like root dentine and enamel.
2Object-affected harmful factors
If water-soluble agents like amino acids are used, then side effects are reduced and they dissolve in water, but manufacturing becomes expensive and laborious due to grinding and sieving steps
Solution Approach 1:
The patent changes the particle size parameter to a specific range (5-50 μm, preferably 10-30 μm) that optimizes both cleaning performance and manufacturing feasibility. This parameter optimization allows the amino acid powders to be effectively applied while reducing the need for extensive grinding and sieving, thereby lowering manufacturing complexity and costs.
3Object-affected harmful factors
If smaller grain size powders are used, then abrasiveness is reduced, but cleaning efficiency decreases
Solution Approach 1:
The patent optimizes the grain size parameter to a specific range (5-50 μm, preferably 10-30 μm) that achieves the optimal balance between reduced abrasiveness and maintained cleaning efficiency. This parameter optimization allows smaller particles to effectively clean tooth surfaces without causing excessive abrasion, unlike conventional powders where smaller sizes significantly reduce cleaning performance.
Solution Approach 2:
The patent uses composite amino acid powder formulations that combine different amino acids (glycine, L-alanine, L-valine) with complementary properties. This composite approach enhances cleaning efficiency at smaller particle sizes while maintaining low abrasiveness, as the different amino acid crystals work synergistically to remove deposits effectively.
4Object-affected harmful factors
If powders with density no more than 2.0 g/cm3 are used, then gentleness on sensitive surfaces is improved, but cleaning efficiency may be compromised
Solution Approach 1:
The patent changes the material composition parameter by using amino acid-based powders with densities below 2.0 g/cm3 (glycine: 1.56 g/cm3, L-alanine: 1.54 g/cm3, L-valine: 1.31 g/cm3). These lighter materials provide gentleness on sensitive tooth surfaces while maintaining effective cleaning efficiency through their specific crystal structures and particle morphology.
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
These sugar alcohols offer improved cleaning efficiency, reduced abrasiveness, better miscibility, and lower nozzle wear, while being cost-effective and safe for use on sensitive surfaces, including dentine, with minimal side effects and suitable for diabetics.
Implementation Method 1
When treating sensitive tooth surfaces, like root dentine or others less strongly mineralized tooth surfaces, with a powder-jet device
Implementation Method 2
A dental abrasive spraying device has a hand-piece (4) nozzle for spraying a dental powder contained in a reservoir (1), together with a carrier gas and a fluid aiding mixing of the powder with the carrier
Data Source
AI summary
A method for cleaning tooth surfaces with a powder and a powder mixture, preferably by powder blasting with a powder-jet device, said device mixing the powder or the powder mixture with air to form a powder/air mixture, wherein said powder and/or powder mixture is an alditol or contains such alditol. Preferably, mannitol and/or erythritol are used, because of their anti-cariogenic effect. Xylitol is also suitable for cleaning tooth surfaces, especially of less strongly mineralized tooth surfaces like dentine.