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Updated: Jul 6, 2025

Development of Amelogenin-chitosan Hydrogel for In Vitro Enamel Regrowth with a Dense Interface

Development of Amelogenin-chitosan Hydrogel for In Vitro Enamel Regrowth with a Dense Interface

Published on: July 10, 2014

Biomimetic Self-Maturation Mineralization System for Enamel Repair.

Chen Lei¹, Kai-Yan Wang¹, Yu-Xuan Ma¹

¹State Key Laboratory of Oral & Maxillofacial Reconstruction and Regeneration, National Clinical Research Center for Oral Diseases, Shaanxi Key Laboratory of Stomatology, Department of Prosthodontics, School of Stomatology, The Fourth Military Medical University, Xi'an, 710032, China.

Advanced Materials (Deerfield Beach, Fla.)

|January 4, 2024

Summary

This summary is machine-generated.

This study introduces a biomimetic system for enamel repair using RNA-stabilized amorphous calcium phosphate and ribonuclease. It effectively removes organic residues, promoting denser enamel crystal growth for improved dental restoration.

Keywords:

amorphous calcium phosphate biomimetic mineralization enamel repair ribonuclease ribonucleic acid

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Rapid Mix Preparation of Bioinspired Nanoscale Hydroxyapatite for Biomedical Applications

Rapid Mix Preparation of Bioinspired Nanoscale Hydroxyapatite for Biomedical Applications

Published on: February 23, 2017

Area of Science:

Biomaterials Science
Dental Research
Mineralization Mechanisms

Background:

Enamel repair is vital for dental health, but current methods struggle with organic residue retention, compromising repair quality.
Natural enamel maturation involves enzymatic processing of the organic matrix to enhance crystal density.
Existing biomimetic approaches often fail to address organic matter exclusion during enamel remineralization.

Purpose of the Study:

To develop a biomimetic self-maturation mineralization system for effective enamel repair.
To investigate the mechanism of organic residue exclusion during biomimetic enamel mineralization.
To enhance the mechanical and physiochemical properties of repaired enamel.

Main Methods:

Development of a system using ribonucleic acid-stabilized amorphous calcium phosphate (RNA-ACP) and ribonuclease (RNase).
Induction of initial mineralization via epitaxial crystal growth using RNA-ACP.
Triggering of self-maturation and organic matter exclusion by salivary RNase.
Mechanistic study of RNA degradation and its effect on ACP conformation and crystal growth.

Main Results:

The RNA-ACP and RNase system successfully induced mineralization and promoted epitaxial crystal growth.
Degradation of RNA by RNase led to conformational changes in ACP, excluding organic residues.
This exclusion facilitated lateral crystal growth, forming dense, organic-residue-free enamel-like apatite crystals.
Enhanced mechanical and physiochemical properties were observed in the repaired enamel.

Conclusions:

A novel biomimetic self-maturation mineralization strategy effectively repairs enamel by eliminating organic residues.
The developed system mimics natural enamel maturation for superior crystal formation.
This approach offers a promising conceptual framework for clinical dental repair and biomineralization research.