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Embryology and epidemiology of cleft lip and palate

N Bernheim1, M Georges, C Malevez

  • 1Department of Otorhinolaryngology, Head and Neck Surgery, The Cleft Lip and Palate Team, Hôpital Universitaire des Enfants Reine Fabiola, Brussels, Belgium. nathalie.bernheim@huderf.be

B-ENT
|March 21, 2007
PubMed

Insights

Cleft lip and palate are common birth defects affecting 1 in 700 newborns. Understanding facial embryology is key to identifying causes and improving outcomes for these craniofacial anomalies.

Area of Science:

  • Developmental Biology
  • Medical Genetics
  • Teratology

Background:

  • Craniofacial anomalies, specifically cleft lip and palate (CLP), represent significant human birth defects.
  • CLP occurs globally with a frequency of approximately 1 in 700 live births, posing considerable clinical challenges.

Purpose of the Study:

  • To review the embryological development of the face, lip, and palate.
  • To elucidate the pathogenesis of clefting, focusing on critical developmental periods and influencing factors.
  • To provide an overview of the prevalence, genetic, and environmental etiologies of cleft lip and/or palate.

Main Methods:

  • Literature review of embryological development.
  • Analysis of factors influencing craniofacial development during gestation.
  • Compilation of data on prevalence and causative agents of CLP.

Main Results:

  • Detailed review of facial, lip, and palate embryogenesis.
  • Identification of key developmental stages and susceptibility periods during gestation.
  • Summary of known genetic and environmental risk factors contributing to CLP.

Conclusions:

  • Understanding facial embryology is crucial for comprehending CLP pathogenesis.
  • Multiple genetic and environmental factors contribute to the development of these common birth defects.
  • Further research into developmental mechanisms can inform prevention and treatment strategies for craniofacial anomalies.

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