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Structural and distribution patterns of surface 'prismless' enamel in human permanent teeth
T Kodaka1, M Kuroiwa, S Higashi
1Second Department of Oral Anatomy, School of Dentistry, Showa University, Tokyo, Japan.
Caries Research
|January 1, 1991
Summary
Surface enamel in human teeth exhibits
Area of Science:
- Dental Enamel Microstructure
- Human Tooth Anatomy
Background:
- Surface enamel in human teeth exhibits unique structural variations.
- Understanding these variations is crucial for dental research and clinical applications.
Purpose of the Study:
- To investigate the structural and distribution patterns of surface 'prismless' enamel in human permanent teeth.
- To classify the shapes and formation patterns of 'prismless' enamel.
Main Methods:
- Scanning electron microscopy (SEM) was employed to examine human permanent teeth.
- Analysis focused on the surface enamel, identifying 'prismless' enamel structures and their relationship to prism patterns.
Main Results:
- 'Prismless' enamel was classified into three shapes: step-like, band-like, and island-like.
- Two formation patterns were identified: prism-dependent (P type) and Retzius-dependent (R type).
- P type was prevalent in occlusal and cuspal enamel, while R type was observed in various surface enamel regions.
Conclusions:
- Surface 'prismless' enamel displays distinct morphological classifications and formation mechanisms.
- The findings contribute to a deeper understanding of dental enamel development and structure.
- Further research can explore the functional implications of these 'prismless' enamel patterns.