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Tooth eruption: theories and facts

S C Marks1, H E Schroeder

  • 1Department of Cell Biology, University of Massachusetts Medical School, Worcester 01655, USA.

The Anatomical Record
|June 1, 1996
PubMed
Summary

Tooth eruption mechanisms are explained by root elongation and bone remodeling, favoring theories that account for teeth moving in 3D space. This guides understanding of how and why teeth erupt in mammals.

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Area of Science:

  • Developmental Biology
  • Oral and Maxillofacial Surgery
  • Comparative Anatomy

Background:

  • The process of tooth eruption has been historically debated.
  • Understanding tooth movement and positioning is crucial for dental health.

Purpose of the Study:

  • To formulate a guiding theory of tooth eruption based on biological parameters.
  • To analyze recent findings on mammalian tooth eruption.

Main Methods:

  • Review of recent observations and experimental data on dogs, rats, primates, and humans.
  • Analysis of pre-eruptive movements and intraosseous stages of eruption.
  • Integration of findings within a framework of basic biological parameters.

Main Results:

  • Theories involving alveolar bone remodeling and root elongation are favored.
  • Variable eruption speeds and 3D tooth movement are key parameters.
  • Cementum apposition and periodontal ligament formation act as correction factors.

Conclusions:

  • Established basic principles of tooth eruption.
  • Identified signals from the dental follicle and conditions for tooth movement.
  • Highlighted clinical relevance of understanding tooth eruption mechanisms.

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