Hypodontia

Hypodontia is a developmental condition in which one or more teeth fail to form, usually excluding wisdom teeth. It ranges from isolated missing teeth to patterns associated with genetic syndromes.

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Odontogenesis: Odontogenesis is the process by which teeth develop from interactions between oral epithelium and underlying tissues. Hypodontia occurs when this developmental process fails to produce one or more tooth germs.
Panoramic radiography: Panoramic radiography is dental imaging that captures both jaws and their teeth in a single view. It can reveal whether an apparently missing tooth has a developing successor.
Hypodontia of the second premolars: Hypodontia of the second premolars is the congenital absence of one or both permanent second premolars. Second premolars are among the teeth commonly absent in nonsyndromic hypodontia.
Edentulism: Edentulism is the condition of having lost some or all teeth after they formed. Unlike hypodontia, edentulism follows tooth development and subsequent loss.
Tooth agenesis: Tooth agenesis is the congenital absence of one or more teeth because they did not develop. This broader term includes hypodontia and more extensive patterns of missing teeth.
Orthodontics: Orthodontics is the dental specialty concerned with diagnosing and correcting irregular tooth positions and jaw relationships. Tooth absence changes spacing, alignment, and decisions about closing or preserving gaps.
Hypodontia of the maxillary lateral incisors: Hypodontia of the maxillary lateral incisors is the congenital absence of one or both upper lateral incisors. This pattern can affect appearance and create decisions about space closure or replacement.
Impacted tooth: An impacted tooth is a tooth that has formed but failed to erupt into its normal position. Imaging distinguishes an unerupted tooth from one that never developed.
WNT10A: WNT10A is a signaling protein involved in embryonic development, including formation of teeth and other ectodermal structures. Variants in WNT10A are among the genetic causes of tooth agenesis.
Dental implant: A dental implant is a surgically placed fixture that supports a replacement tooth. Implants may replace congenitally absent teeth after growth and treatment planning are considered.