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Ectodermal dysplasia with tooth-nail defects

Last edited: 4/23/2026

Overview

Ectodermal dysplasia with tooth-nail defects is a genetic disorder characterized by abnormalities in tissues derived from the ectoderm, including dental anomalies and nail dystrophy 1.

Diagnosis

  • Clinical Presentation: Characteristic nail defects such as onycholysis and dental abnormalities like missing or malformed teeth 1.
  • Nail Examination: Detailed assessment of nail structure and integrity to identify defects 1.
  • Dental Evaluation: Comprehensive dental examination to assess tooth development and morphology 1.

    • Management

  • Drug Withdrawal: Discontinue causative agents like tetracycline hydrochloride if drug-induced onycholysis is suspected 1.
  • Supportive Care: Regular nail care and monitoring for nail health improvement post-withdrawal 1.
  • Dental Interventions: Orthodontic and prosthodontic treatments tailored to individual dental deficiencies 1.

    • Special Populations

  • Drug-Induced Cases: Consider drug history in pediatric and adult patients to identify and manage tetracycline-induced nail defects 1.

    • Key Recommendations

  • Withdrawal of Causative Drugs: Discontinue tetracycline hydrochloride in cases of drug-induced nail defects to allow recovery 1 (Evidence: Weak).
  • Regular Monitoring: Implement regular nail and dental assessments to monitor progression and response to management 1 (Evidence: Weak).
  • Tailored Dental Care: Provide individualized dental interventions based on the extent of dental anomalies 1 (Evidence: Expert opinion).

    • References

    1 Kanwar AJ, Singh OP. Onycholysis secondary to tetracycline hydrochloride. Cutis 1979. link

    Original source

    1. [1]
      Onycholysis secondary to tetracycline hydrochloride. — Kanwar AJ, Singh OP Cutis (1979)
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