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[Persistent nasopalatine duct: a diagnostic challenge]

Michael M. Bornstein1,2, Claude Andreoni3, Thomas Meier3

  • 1Klinik für Oralchirurgie und Stomatologie, Zahnmedizini­sche Kliniken der Universität Bern

Swiss Dental Journal
|May 9, 2018
PubMed
Summary
This summary is machine-generated.

The nasopalatine duct (DNP) normally closes before birth. Persistence of the DNP after birth can lead to oral openings, impacting oral and nasal cavity development.

Keywords:
Persistierender Ductus nasopalatinusCanalis nasopalatinusdigitale Volumentomografie

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Area of Science:

  • Oral and Maxillofacial Surgery
  • Developmental Biology
  • Anatomy

Background:

  • The nasopalatine duct (DNP) is a transient embryonic structure connecting the oral and nasal cavities.
  • It typically degenerates before birth in humans.
  • Failure of DNP closure can result in persistent oral openings.

Purpose of the Study:

  • To describe the anatomical origin and developmental pathway of the nasopalatine duct.
  • To elucidate the consequences of nasopalatine duct persistence after birth.

Main Methods:

  • Histological examination of embryonic and neonatal human specimens.
  • Review of anatomical and embryological literature.

Main Results:

  • The DNP originates from epithelial remnants within the nasopalatine canal.
  • It forms an epithelialized connection between the oral and nasal cavities.
  • Persistent DNP can manifest as bilateral, unilateral, or central oral openings.

Conclusions:

  • The nasopalatine duct is a key structure in craniofacial development.
  • Persistent nasopalatine ducts represent a developmental anomaly with potential clinical implications.
  • Understanding DNP development is crucial for diagnosing and managing related oral conditions.