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[Late development of human dental enamel]
Journal De Biologie Buccale
|December 1, 1979
Summary
Dental enamel shows age-related changes in structure and increased susceptibility to acid erosion in older teeth. Urea pretreatment enhances acid effects in younger enamel, suggesting matrix component reduction during late maturation.
Area of Science:
- Biomineralization
- Dental Enamel Ultrastructure
- Age-Related Changes
Context:
- Human dental enamel exhibits age-dependent morphological variations.
- Scanning electron microscopy reveals structural differences in enamel fractures.
- Enamel sheaths undergo changes with age, diminishing in subsurface areas.
Purpose:
- To investigate age-related morphological variations in human dental enamel.
- To assess the impact of demineralizing agents on enamel from teeth of different ages.
- To explore the effect of urea pretreatment on acid-induced enamel destruction.
Summary:
- Longitudinal fracture planes in human dental enamel display age-related morphological variations.
- Older teeth enamel showed more severe destruction from phosphoric acid, citric acid, and EDTA compared to younger samples.
- Urea pretreatment amplified acid effects specifically in young enamel, indicating a role for matrix components in late enamel maturation.
Impact:
- Provides insights into the aging process of dental enamel.
- Highlights increased vulnerability of older enamel to acidic challenges.
- Suggests that late enamel maturation involves a reduction in matrix components, influencing its resistance to demineralization.