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Double tooth.

A Knezević1, S Travan, Z Tarle

  • 1Department of Restorative Dentistry, School of Dental Medicine, University of Zagreb, Zagreb, Croatia.

Collegium Antropologicum
|January 17, 2003
PubMed
Summary
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This study investigated double teeth, including fusion and gemination, finding a prevalence of 0.2% in 3,517 dental models. Fusion occurred in 57.2% of cases, while gemination accounted for 42.9%.

Area of Science:

  • Dentistry
  • Oral and Maxillofacial Surgery
  • Human Genetics

Background:

  • Tooth morphology variations, including hereditary or acquired changes, can affect primary and permanent dentition.
  • Fusion (union of teeth) and gemination (division of a tooth germ) are specific developmental anomalies impacting tooth form.
  • Understanding the prevalence and patterns of these anomalies is crucial for dental diagnosis and treatment planning.

Purpose of the Study:

  • To determine the prevalence of double teeth (fusion and gemination) in the studied population.
  • To analyze the distribution of these anomalies based on gender, jaw location (maxilla/mandible), and laterality (unilateral/bilateral).

Main Methods:

  • Analysis of 3,517 dental plaster models.
  • Documentation and classification of tooth anomalies, specifically fusion and gemination.

Related Experiment Videos

  • Statistical analysis of prevalence, gender distribution, jaw distribution, and laterality.

    • Main Results:

    • A overall prevalence of 0.2% for double teeth was observed across the 3,517 examined models.
    • Fusion represented 57.2% of the identified double teeth cases.
    • Gemination accounted for 42.9% of the double teeth cases.

    Conclusions:

    • Double teeth, encompassing fusion and gemination, represent a rare dental anomaly with a prevalence of 0.2%.
    • Fusion is more common than gemination among individuals with double teeth.
    • Further research can explore etiological factors and clinical implications of these developmental variations.