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Related Experiment Videos

Class-III malocclusion: genetics or environment? A twins study.

A K Jena1, R Duggal, V P Mathur

  • 1Department of Dental Surgery, All India Institute of Medical Sciences, New Delhi-110029, India.

Journal of the Indian Society of Pedodontics and Preventive Dentistry
|April 29, 2005
PubMed
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Class-III malocclusion is primarily genetic, but environmental factors also play a role. This study on identical twins reveals rare discordancy, suggesting environmental influences on cranio-dento-facial development.

Area of Science:

  • Orthodontics and Genetics
  • Craniofacial Biology

Background:

  • Class-III malocclusion is commonly attributed to genetic factors.
  • Environmental influences are also implicated in its development.
  • Twin studies are crucial for dissecting genetic versus environmental contributions to malocclusion.

Observation:

  • Discordancy for Class-III malocclusion is common in dizygotic (fraternal) twins.
  • Discordancy in monozygotic (identical) twins is notably rare.
  • This rarity in identical twins highlights the complexity of etiological factors.

Findings:

  • The study investigates monozygotic twins to differentiate genetic and environmental influences.
  • Assessing variations in the cranio-dento-facial complex provides insights into malocclusion etiology.

Related Experiment Videos

  • Rare discordancy in identical twins suggests significant environmental modulation of genetic predisposition.

    • Implications:

    • Understanding the interplay of genes and environment is crucial for predicting and managing Class-III malocclusion.
    • This research contributes to personalized orthodontic treatment strategies.
    • Further investigation into specific environmental factors is warranted.