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Related Experiment Videos

An unusual lateral incisor.

J W Ferguson

    British Journal of Orthodontics
    |July 1, 1984
    PubMed
    Summary
    This summary is machine-generated.

    This study outlines tooth development anomalies, including hypodontia and hyperodontia. A rare case of hypo-hyperodontia involving a fused supernumerary tooth and connation in deciduous incisors is presented.

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    Area of Science:

    • Dentistry
    • Oral and Maxillofacial Surgery
    • Developmental Biology

    Background:

    • Dental anomalies such as hypodontia (missing teeth), hyperodontia (supernumerary teeth), and tooth fusion or gemination (connotation) are recognized conditions.
    • These developmental disturbances can affect tooth number, size, and shape, potentially leading to functional and aesthetic concerns.

    Observation:

    • A clinical case is presented involving a patient with a missing maxillary lateral incisor (hypodontia) on one side.
    • In the same region, an unerupted tooth with characteristics of a supernumerary tooth was observed.
    • Furthermore, the deciduous incisors in the affected quadrant exhibited characteristics of connation (fusion or gemination).

    Findings:

    • The observed condition is diagnosed as hypo-hyperodontia, a rare combination of tooth agenesis and the presence of a supernumerary tooth.

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  • The co-occurrence of these anomalies in the same quadrant, alongside connation of deciduous teeth, suggests a complex developmental etiology.

    • Implications:

    • This case highlights the importance of recognizing complex dental anomalies and their potential co-occurrence.
    • Understanding such rare presentations aids in accurate diagnosis and tailored treatment planning for patients with dental developmental disturbances.
    • Further research into the genetic and environmental factors underlying combined dental anomalies is warranted.