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Related Experiment Videos

Electron probe study of coronal dentin in red deer.

E Hals, B Tötdal

    Scandinavian Journal of Dental Research
    |October 1, 1985
    PubMed
    Summary

    This study maps mineral concentrations in red deer coronal dentin, revealing distinct elemental profiles in different tooth regions and structures like giant tubules. Findings highlight variations in calcium, phosphorus, and magnesium distribution.

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    Area of Science:

    • Biomineralization research
    • Dental anatomy and histology
    • Comparative odontology

    Background:

    • Understanding the elemental composition of dentin is crucial for insights into tooth structure and function.
    • Red deer (Cervus elaphus) dentin presents unique histological features, including frequent giant tubules.
    • Previous studies have not comprehensively mapped the topographic distribution of multiple elements in red deer coronal dentin.

    Purpose of the Study:

    • To provide a semiquantitative topographic description of elemental concentration profiles in red deer coronal dentin.
    • To investigate variations in the distribution of calcium (Ca), phosphorus (P), magnesium (Mg), zinc (Zn), fluorine (F), sulfur (S), and potassium (K).
    • To correlate elemental distribution with specific anatomical regions and histological features, such as giant tubules and worn incisal edges.

    Main Methods:

    • Topographic analysis of elemental concentration profiles.
    • Semiquantitative assessment of Ca, P, Mg, Zn, F, S, and K.
    • Examination of coronal dentin across the mesiodistal axis and towards the pulpal cavity.
    • Investigation of elemental distribution within giant tubules and near worn incisal edges.

    Main Results:

    • Lower Ca and P concentrations and higher Mg concentrations were observed along the mesiodistal axis compared to bulk dentin.
    • Inner dentin showed decreasing Ca, P, and Mg profiles towards the pulpal cavity, with increasing Zn, F, and S profiles.
    • Elevated S and K profiles were incidentally found near worn incisal edges.
    • Giant tubule walls exhibited modest elevations in Ca, P, Mg, and Zn, while lumina occasionally showed elevated S.

    Conclusions:

    • Red deer coronal dentin exhibits complex, spatially variable elemental distribution patterns.
    • Specific anatomical locations and histological features, like giant tubules, are associated with distinct elemental profiles.
    • These findings contribute to understanding the biomineralization processes and structural adaptations in cervid dentition.

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