US 12214062 B1Patent grantUnited States

Bio-Derived Composite Dental Crown

Official patent title

Organic dental crown and method of fabricating the dental crown

Arabic title: تاج أسنان عضوي وطريقة تصنيعه

Invention

Problem

Existing metal, porcelain, and resin crowns involve tradeoffs among appearance, tooth preparation, chipping, wear, staining, durability, and cost.

Why it matters

A crown material with controllable color, dimensions, and mechanical properties could broaden material choices, but intraoral safety and clinical durability must be demonstrated.

Approach

The patent combines date-seed and coconut-shell nanostarch with fish-bone and camel-bone powder, selected organic ingredients, and a polymer-forming agent, then molds and light- or heat-cures the mixture into a crown.

Who may benefit

Potential beneficiaries include dental-material researchers, crown manufacturers, prosthodontic laboratories, biocomposite developers, and technology-transfer partners evaluating bio-derived oral materials.

Potential value

The material package combines several bio-derived powders with a nanoscale composite matrix, specified crown dimensions, layered geometry, color coordinates, and alternative curing routes.

Background

Dental crowns restore the visible portion of damaged teeth, but common materials have different limitations. Metals can be durable yet conspicuous, porcelain-fused-to-metal crowns can show a dark margin or chip, all-ceramic crowns may require additional tooth removal, and composite resins can wear, fracture, or stain. The patent proposes a molded nanostarch biocomposite using plant and bone-derived ingredients, an organic composition, and a polymer-forming agent. It defines target dimensions, optical coordinates, mechanical properties, and curing conditions, but these claims do not establish biocompatibility or clinical service life.

Technology overview

The starch phase contains date-seed nanostarch, coconut-shell nanostarch, fish-bone powder, and camel-bone powder, with particles below 25 nm in a solid matrix. Optional ingredients include fruit waste, seed gel, natural or placenta glue, glycerin, organic dyes, plasticizers, adhesives, starch, glycolic-acid copolymer, or polyvinyl chloride. The material is hydrolyzed with inorganic acid, pressed into a crown no more than 10 mm high and 9.5 mm wide, and photocured for 10–30 seconds or thermally cured at 100–160 °C for 3–6 hours.

Potential applications

Potential use in laboratory development of molded dental-crown materials.
Potential use in studies of color-matched nanocomposite dental restorations.
Potential use as a research platform for plant- and bone-derived dental composites.
Potential use in comparing photocured and thermally cured crown prototypes.

Evidence-supported advantages

Uses a defined mixture of plant-derived starches and bone-derived powders.
Specifies nanoscale particle size and a two-layer crown geometry.
Provides lightness, chroma, hue, and a* and b* color targets.
Supports either short-duration photocuring or longer thermal curing.

Development stage

Patent publication describing crown fabrication and claimed material properties; clinical safety, long-term intraoral performance, regulatory approval, and commercialization were not established.

Commercial opportunity

The formulation may support collaboration with dental-material or prosthodontic manufacturers, initially as an experimental crown composite. Advancement requires verified composition and sourcing, mechanical and fatigue testing, water uptake, wear, staining, sterilization, cytotoxicity, sensitization, oral biocompatibility, dimensional fit, bonding, aging, clinical trials, manufacturing controls, and medical-device approval.

Patent classifications

WIPO IPC

A61K6/898Preparations for medical, dental or toiletry purposes
A61K6/887Preparations for medical, dental or toiletry purposes

CPC

A61K6/17Preparations for medical, dental or toiletry purposes
A61K6/887Preparations for medical, dental or toiletry purposes
A61C13/081Dentistry; apparatus or methods for oral or dental hygiene
A61C5/77Dentistry; apparatus or methods for oral or dental hygiene
A61C5/73Dentistry; apparatus or methods for oral or dental hygiene
A61K6/831Preparations for medical, dental or toiletry purposes
A61K6/65Preparations for medical, dental or toiletry purposes
A61K6/898Preparations for medical, dental or toiletry purposes
A61C13/087Dentistry; apparatus or methods for oral or dental hygiene
A61K6/891Preparations for medical, dental or toiletry purposes
A61K6/80Preparations for medical, dental or toiletry purposes

Inventors

First inventorABM Sharif Hossain
InventorHassan Ahmed Rudayni
InventorMohammad Saad Aleissa
InventorMohammed Musa Zahrany
InventorAbdulrahman Alhudhaibi
InventorFazliny Abdul Rahman

Keywords

dental crown
nanostarch
biocomposite
date seed
coconut shell
bone powder
photocuring
dental material

Patent document and drawings

The patent publication is mapped to this record. Patent drawings remain within that publication; no separately cleared public media package has been supplied.