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Updated: Jul 29, 2026
08:26
Development of Amelogenin-chitosan Hydrogel for In Vitro Enamel Regrowth with a Dense Interface
Published on: July 10, 2014
Evidence for charge domains on developing enamel crystal surfaces.
J Kirkham1, J Zhang, S J Brookes
1Division of Oral Biology, Leeds Dental Institute, The University of Leeds, UK. orl6jen@oralbio.novell.leeds.ac.uk
Journal of Dental Research
|February 24, 2001
Summary
Hydroxyapatite crystal growth in enamel involves matrix proteins. Amelogenin binds to positively charged domains on enamel crystals, guiding mineral interactions during development.
Area of Science:
- Biomineralization
- Materials Science
- Developmental Biology
Background:
- Enamel formation relies on extracellular matrix proteins controlling hydroxyapatite crystal growth.
- The exact mechanisms of matrix-mineral interactions during enamel development are not fully understood.
Purpose of the Study:
- To investigate the relationship between enamel matrix proteins and hydroxyapatite crystal surfaces.
- To characterize developing enamel crystal surfaces using advanced microscopy techniques.
Main Methods:
- Atomic Force Microscopy (AFM) and Chemical Force Microscopy (CFM) were employed.
- Analysis of hydroxyapatite crystal surfaces from the maturation stage of enamel development.
Main Results:
- Distinct charged domains were identified on hydroxyapatite crystal surfaces.
- Amelogenin binding at physiological pH correlated with positively charged surface domains.
- These charged domains may act as templates for matrix-mineral interactions.
Conclusions:
- Enamel crystal surface charge distribution plays a crucial role in guiding amelogenin interactions.
- These interactions likely influence hydroxyapatite crystal growth and enamel structure.
- The findings provide insights into the molecular mechanisms of biomineralization in dental enamel.
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