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Sampling and Pretreatment of Tooth Enamel Carbonate for Stable Carbon and Oxygen Isotope Analysis
Published on: August 15, 2018
Hunter-Schreger Band patterns in human tooth enamel
Christopher D Lynch1, Victor R O'Sullivan, Peter Dockery
1Tissue Engineering & Reparative Dentistry, School of Dentistry, Cardiff University, Heath Park, Cardiff, UK. lynchcd@cardiff.ac.uk
Journal of Anatomy
|June 29, 2010
Summary
Hunter-Schreger Bands (HSBs) show regional variations in human tooth enamel, with higher densities in areas of greatest functional load. These patterns suggest genetic controls enhance enamel
Area of Science:
- Dental Anatomy
- Biomineralization
- Bioengineering
Background:
- Hunter-Schreger Bands (HSBs) are a complex microstructural feature within human tooth enamel.
- Understanding HSBs is crucial for comprehending enamel's mechanical properties and susceptibility to damage.
Purpose of the Study:
- To investigate regional variations in Hunter-Schreger Band (HSB) packing density and patterns across different human tooth types.
- To correlate HSB characteristics with functional loads and infer their role in enamel's resistance to fracture and wear.
Main Methods:
- Light microscopy was employed to examine HSB patterns on axial and occlusal/incisal surfaces of 160 human teeth.
- Teeth were sectioned in both buccolingual and mesiodistal planes to analyze HSBs across various orientations.
Main Results:
- Significant regional variations in HSB packing density and patterns were observed throughout the tooth crowns.
- HSB packing densities were highest in regions subjected to the greatest functional and occlusal loads, such as posterior tooth occlusal surfaces and incisor/canine incisal regions.
Conclusions:
- HSB distribution suggests genetic/evolutionary control over ameloblast behavior during amelogenesis, optimizing enamel for fracture and wear resistance.
- HSB characteristics are potentially significant for clinical dental applications, including adhesive restorations and understanding conditions like abfraction and cracked tooth syndrome.
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