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Abnormal pulp calcification in primary molars after fluoride supplementation.

Eva-Andrea Holtgrave1, Werner Hopfenmüller, Sandra Ammar

  • 1Department of Orthodontics and Pediatric Dentistry, Klinikum Benjamin Franklin, Freie Universität, Berlin.

ASDC Journal of Dentistry for Children
|January 8, 2003
PubMed
Summary

Fluoride supplementation in children led to unique fibrodentin-like calcifications and tooth ankylosis in primary molars. This special pulp calcification was not observed in children without fluoride prophylaxis.

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Area of Science:

  • Dental Research
  • Pediatric Dentistry
  • Mineralized Tissue Biology

Background:

  • Fluoride supplementation is common in pediatric dental care for caries prevention.
  • The long-term effects of early fluoride exposure on primary tooth development are not fully understood.
  • Primary molars are crucial for maintaining space and guiding permanent tooth eruption.

Purpose of the Study:

  • To investigate the microscopic effects of continuous fluoride supplementation on primary molars.
  • To identify any unique hard tissue formations or developmental anomalies associated with fluoride prophylaxis.
  • To explore potential links between fluoride exposure, pulp calcification, and tooth ankylosis.

Main Methods:

  • Light microscopy was used to examine 45 caries-free primary molars.

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  • Teeth were sourced from two groups: children with continuous fluoride supplementation (n=28) and children without fluoride prophylaxis (n=17).
  • Histological analysis focused on dentin structure, pulp tissue, and root morphology.

    • Main Results:

    • A distinct fibrodentin-like hard tissue was observed intramurally in the dentin wall of molars from the fluoride group (n=24).
    • This calcification extended into the pulp cavity, displacing degenerating pulp tissue.
    • Teeth from the fluoride group exhibited significantly higher rates of ankylosis in bifurcation and root areas (p=0.001).

    Conclusions:

    • Continuous fluoride supplementation in children is associated with a unique form of fibrodentin-like pulp calcification.
    • This calcification is linked to tooth ankylosis in primary molars.
    • Further research is warranted to understand the clinical implications of these findings for pediatric dental health.