Goal
Rebuild enamel enamel, remineralize tooth enamel, treat cavities, and improve tooth whitening.
Problem
Tooth enamel demineralization, dental caries, and tooth discoloration caused by acid erosion and staining agents.
Concept Summary
Amelogenin-derived peptides are applied to demineralized enamel surfaces where they bind to the tooth, recruit calcium and phosphate ions, and nucleate a hydroxyapatite mineral layer that integrates with the existing enamel, restoring hardness and appearance.
Detailed Description
The invention comprises biomineralizing polypeptides (e.g., sequences derived from native amelogenin) formulated in a composition that can be applied to teeth. In vitro experiments on artificial lesions showed that peptide-only treatment produced a dense, 10 um thick hydroxyapatite layer that integrated with the underlying enamel, while peptide combined with fluoride yielded a mixed fluorapatite/mineral layer. The method can also be used for whitening by generating a thin mineral coating that masks discoloration.
Principles
- Biomimetic mineralization
- Peptide-mediated ion binding
- Nucleation of hydroxyapatite
- Surface-guided crystal growth
Scientific Domains
Materials
- Amelogenin-derived peptide (biomineralizing polypeptide)
- Calcium ions
- Phosphate ions
- Fluoride (optional)
Mechanisms of Action
- Peptide adsorbs to enamel surface
- Recruits Ca^2^+ and PO_4^3^- ions from saliva or formulation
- Triggers nucleation and growth of hydroxyapatite crystals
- Forms an integrated mineral layer with existing enamel
Applications
- Dental caries treatment
- Tooth whitening
- Enamel repair and regeneration
Claimed Performance
Deposition of 10-50 um of new enamel per use; peptide-only sample produced a dense 10 um hydroxyapatite layer that integrated with underlying enamel.
Experimental Evidence
In-vitro study on artificially created enamel lesions demonstrated peptide-only treatment yielded a thick, dense mineralized layer; imaging confirmed integration with native enamel.
Replication Status
In-vitro demonstration only; no clinical replication reported.
Limitations
- Only in-vitro data presented
- No clinical trial results
- Scalability and cost of peptide synthesis not addressed
- Long-term durability of regenerated enamel unknown
