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Related Experiment Videos

[Morphological study on edentulous mandibula]

T Morita1, S Takeuchi, H Yamashita

  • 1Department of Anatomy, Jikei University School of Medicine, Tokyo, Japan.

Kaibogaku Zasshi. Journal of Anatomy
|June 1, 1993
PubMed
Summary
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Edentulism significantly alters mandibular morphology, reducing body height and process heights while increasing the mandibular angle. These changes result from bone resorption and reduced deposition, particularly in the mandibular angle region, linked to decreased bite force.

Area of Science:

  • Dental Morphology
  • Oral Anatomy
  • Bone Physiology

Context:

  • Edentulism, the loss of teeth, leads to significant changes in the jawbone.
  • Understanding these morphological alterations is crucial for prosthodontic rehabilitation and implantology.

Purpose:

  • To investigate the comprehensive morphological changes in the edentulous mandible.
  • To compare the dimensions of edentulous mandibles with dentulous mandibles.

Summary:

  • Edentulous mandibles exhibited reduced body height and lower condylar and coronoid process heights compared to dentulous mandibles.
  • A greater mandibular angle was observed in edentulous mandibles, attributed to decreased bone deposition at the inferior and posterior margins.
  • These changes are associated with bone resorption and diminished bite force due to tooth loss.

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Impact:

  • Provides insights into the structural adaptations of the mandible following tooth loss.
  • Informs the design and placement of dental prosthetics and implants in edentulous patients.
  • Contributes to a better understanding of the biomechanics of the edentulous jaw.