Calcium Phosphate Glass Composition for Dentin Tubule Sealing
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Solution Overview
Problem
Existing compositions for tooth remineralization do not effectively protect and minimize irregularities and defects on dentin surfaces, leading to tooth sensitivity and periodontal disease.
Innovation Solution
A composition comprising calcium phosphate glass and aqueous silica sol is applied to dentin surfaces, forming a gel layer that seals exposed tubules and, upon dissolution, remineralizes with hydroxyapatite or calcium phosphate, sealing the tubules permanently.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If conventional remineralization compositions are used, then some remineralization effect is achieved, but dentin surfaces are not completely protected and irregularities and defects are not significantly minimized
Solution Approach 1:
The invention uses a composite material system consisting of calcium phosphate glass particles dispersed in an aqueous colloidal silica solution. This composite provides both the remineralization function (through calcium phosphate release) and the surface sealing function (through silica gel layer formation), achieving complete dentin protection and significant minimization of surface irregularities that conventional single-material compositions could not achieve.
Solution Approach 2:
The calcium phosphate glass in the composition has a porous structure that enables controlled release of calcium and phosphate ions to the dentin surface. This porous material design enhances the remineralization efficiency while allowing the formation of a uniform sealing layer that addresses surface irregularities and defects effectively.
2Object-affected harmful factors
If a gel layer is formed to seal exposed tubules, then tooth sensitivity is reduced, but the composition requires specific formulation parameters to achieve complete and permanent sealing
Solution Approach 1:
The invention specifies precise formulation parameters including 5-20 wt% calcium phosphate glass particles, colloidal silica concentration of 10-40 wt%, pH range of 3-7, and particle size distribution with D10 of 0.5-5 μm and D90 of 5-20 μm. These controlled parameter changes ensure the gel layer forms with appropriate properties for complete and permanent tubule sealing, effectively reducing tooth sensitivity while maintaining manageable composition complexity.
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
Reduces tooth sensitivity and halts periodontal disease by sealing dentin tubules and remineralizing the tooth surface, effectively minimizing surface irregularities.
Implementation Method 1
forming a gel layer that seals exposed tubules
Implementation Method 2
the calcium phosphate glass dissolves in the oral environment, and its ionic components are remineralized
Implementation Method 3
aqueous silica sol...forming a gel layer containing very fine glass particles
Data Source
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AI summary
The present invention relates to a composition for the remineralization of teeth and to the use thereof. The composition comprises calcium phosphate (CaP) glass, and aqueous silica sol.