{
    "title": "Biogenic Tooth Remineralization",
    "inventor_name": "Mehmet Sarikaya",
    "publication_year": 2018,
    "device_name": "Biomimetic Tooth Repair Peptide",
    "goal": "Rebuild enamel enamel, remineralize tooth enamel, treat cavities, and improve tooth whitening.",
    "problem_addressed": "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.",
    "category": "Medical & Dental Technologies",
    "principles": [
        "Biomimetic mineralization",
        "Peptide-mediated ion binding",
        "Nucleation of hydroxyapatite",
        "Surface-guided crystal growth"
    ],
    "scientific_domains": [
        "Materials Science",
        "Dentistry",
        "Biomaterials",
        "Chemistry"
    ],
    "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"
    ],
    "materials": [
        "Amelogenin-derived peptide (biomineralizing polypeptide)",
        "Calcium ions",
        "Phosphate ions",
        "Fluoride (optional)"
    ],
    "energy_sources": [],
    "inputs": [
        "Peptide composition",
        "Calcium source",
        "Phosphate source",
        "Fluoride (optional)"
    ],
    "outputs": [
        "New hydroxyapatite enamel layer (10-50 um thick)",
        "Improved tooth color (whitening)",
        "Reduced cavity progression"
    ],
    "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.",
    "keywords": [
        "enamel",
        "remineralization",
        "peptide",
        "biomimetic",
        "dental",
        "fluoride",
        "hydroxyapatite"
    ],
    "related_technologies": [
        "Fluoride toothpaste",
        "Dental varnish",
        "Bleaching agents",
        "Biomimetic peptides for bone repair"
    ],
    "controversy_level": "low",
    "confidence_score": 0.9,
    "practicability_score": 0.6,
    "fringe_score": 0.2,
    "evidence_strength": 0.6,
    "risk_score": 0.2,
    "trl_estimate": 3,
    "source_urls": [
        "http://www.sci-news.com/medicine/biogenic-dental-product-05912.html",
        "https://doi.org/10.1021/acsbiomaterials.7b00959",
        "http://www.rexresearch.com/WO2017123986A1.pdf"
    ],
    "organizations": [
        "University of Washington"
    ],
    "applications": [
        "Dental caries treatment",
        "Tooth whitening",
        "Enamel repair and regeneration"
    ],
    "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"
    ],
    "open_questions": [
        "How does the peptide perform in vivo under oral conditions?",
        "What is the longevity of the regenerated enamel layer?",
        "Are there any adverse immune or toxicity responses?",
        "Can the formulation be integrated into consumer dental products?"
    ],
    "red_flags": [],
    "evidence_quotes": [
        "The peptide-alone sample resulted in remineralization of fairly thick (10 um) dense mineralized layer containing HAp mineral, resembling the structure of the healthy enamel.",
        "These peptides are proven to bind onto tooth surfaces and recruit calcium and phosphate ions.",
        "The peptide-enabled technology allows the deposition of 10 to 50 micrometers of new enamel on the teeth after each use."
    ]
}