ⓘ Hypodontia


ⓘ Hypodontia

Hypodontia is defined as the developmental absence of one or more teeth which can affect both the primary and permanent dentition. It is the most common developmental dental anomaly and can be challenging to manage clinically. The term hypodontia is used to describe the whole range of the disorder from one missing tooth to the complete absence of all teeth, anodontia.

The terminology in use varies. One text suggested the following descriptive terms:

  • Anodontia: a developmental or congenital condition characterised by absence of all teeth.
  • Oligodontia: A developmental or congenital condition characterised by fewer than normal teeth in the presence of systemic manifestations.
  • Hypodontia: A developmental or congenital condition characterised by fewer than normal teeth.
  • Severe hypodontia: A developmental or congenital condition characterised by absence of 6 or more teeth.

Descriptive terms hypoplasia or agenesis of several teeth are often used in the United States.

Individuals with hypodontia often exhibit other dental anomalies such as microdontia, impaction of permanent canines and transposition.

Supernumerary teeth are teeth present in addition to the normal complement. This may occur in both dentitions.

  • age 12. In addition to palmoplantar keratoderma, other symptoms include hypodontia hypotrichosis, nail dystrophies, and eyelid cysts apocrine hidrocystomas
  • Tooth and nail syndrome also known as Hypodontia with nail dysgenesis, and Witkop syndrome is a rare disorder, first described in 1965, characterized
  • genetic factors. Congenital absence of permanent teeth can present as hypodontia usually missing one or two permanent teeth, or oligodontia that is the
  • Presenting conditions include primary hypothyroidism, cleft palate, hypodontia and ectodermal dysplasia. It is the result of an embryonic defect in
  • This technique has been used to study a group of Neolithic farmers. Hypodontia Archived copy Archived from the original on 2013 - 06 - 22. Retrieved 2013 - 06 - 20
  • periorbital hyperpigmentation, vitiligo, and perinevic leukoderma and hypodontia Transmission is autosomal recessive. List of cutaneous conditions Samdani
  • replaced by a completely new set of thirty - two adult teeth. In some cases hypodontia or hyperdontia occurs, the latter in cleidocranial dysostosis and Gardner s
  • syndactyly, excessive freckling, lacrimal duct anomalies, dysplastic nails, hypodontia hypoplastic breasts and nipples, hypotrichosis, hypohidrosis, broad nasal
  • more common than generalized microdontia, and is often associated with hypodontia reduced number of teeth The most commonly involved tooth in localized
  • toes hypotrichosis a type of hair - loss and dental abnormalities hypodontia EEM syndrome is caused by mutations in the P - cadherin gene CDH3 Distinct
  • the WNT10A gene are associated with Schopf Schulz Passarge syndrome and hypodontia GRCh38: Ensembl release 89: ENSG00000135925 - Ensembl, May 2017 GRCm38:
  • The permanent teeth are commonly irregular and teeth may be missing hypodontia The collar bones are often underdeveloped and malformed. The skin over