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Masticatory muscle influence on craniofacial growth

S Kiliaridis1

  • 1Department of Orthodontics, Faculty of Odontology, Göteborg University, Sweden.

Acta Odontologica Scandinavica
|June 1, 1995
PubMed
Summary

Masticatory muscle function significantly impacts craniofacial development. Increased jaw loading from muscle hyperfunction promotes maxillary transversal growth and alters mandibular growth patterns.

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Area of Science:

  • Craniofacial biology
  • Dental research
  • Biomechanics

Background:

  • The relationship between masticatory muscle function and craniofacial development is a key area in biological and clinical research.
  • Previous studies indicate that the elevator muscles of the mandible play a crucial role in facial dimensions.

Purpose of the Study:

  • To elucidate the influence of masticatory muscle function on craniofacial growth patterns.
  • To analyze the effects of increased jaw loading on skeletal dimensions and mandibular development.

Main Methods:

  • Review of animal experimental and clinical studies investigating masticatory muscle function.
  • Analysis of documented changes in craniofacial dimensions and bone apposition.
  • Examination of mandibular growth rotation and process development.

Main Results:

  • Elevator muscles of the mandible influence both transversal and vertical facial dimensions.
  • Increased jaw loading due to masticatory muscle hyperfunction stimulates sutural growth and bone apposition.
  • This leads to increased transversal maxillary growth and broader dental arch bone bases.
  • Enhanced masticatory muscle function correlates with anterior mandibular growth rotation and well-developed mandibular processes.

Conclusions:

  • Masticatory muscle function is a significant determinant of craniofacial morphology.
  • Hyperfunction can lead to specific adaptive changes in the maxilla and mandible.
  • Understanding these mechanisms is crucial for fields like orthodontics and oral surgery.

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