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Primary tooth fluorosis and amoxicillin use during infancy

Liang Hong1, Steven M Levy, John J Warren

  • 1Department of Preventive and Community Dentistry, University of Iowa College of Dentistry, Iowa City, IA 52242-1010, USA.

Journal of Public Health Dentistry
|April 14, 2004
PubMed

Insights

Amoxicillin use in infancy may contribute to primary tooth fluorosis, particularly with low fluoride exposure. However, fluoride intake remains the primary predictor of this dental defect.

Area of Science:

  • Pediatric Dentistry
  • Dental Public Health
  • Developmental Biology

Background:

  • Amoxicillin is a widely used antibiotic in early childhood.
  • Potential links between amoxicillin and enamel defects, including fluorosis, require further investigation.
  • Primary tooth fluorosis assessment is crucial for understanding early developmental influences.

Purpose of the Study:

  • To investigate the association between amoxicillin use in the first year of life and primary tooth fluorosis.
  • To determine if amoxicillin exposure is a risk factor for developing primary tooth enamel defects.
  • To differentiate the impact of amoxicillin from fluoride intake on tooth development.

Main Methods:

  • Prospective cohort study of 490 infants from birth.
  • Data collection via questionnaires on amoxicillin use and fluoride intake.
  • Clinical assessment of primary tooth fluorosis by calibrated examiners around age 5.

Main Results:

  • Bivariate analysis indicated increased risk of molar fluorosis with amoxicillin use (6 weeks to 6 months).
  • Multivariate analysis, controlling for fluoride intake, showed no significant association between amoxicillin and fluorosis.
  • Fluoride intake was the only statistically significant predictor of primary tooth fluorosis in multivariate models.

Conclusions:

  • Fluoride exposure is the sole significant predictor of primary tooth fluorosis.
  • Amoxicillin may play a role in fluorosis development, especially in low-fluoride environments.
  • Further research on amoxicillin's impact on permanent tooth fluorosis is recommended.
Abstract

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