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Related Concept Videos

Tooth Anatomy01:21

Tooth Anatomy

The human tooth enables us to eat a variety of foods, speak clearly, and even aid in shaping our faces. Teeth are composed of various elements that work together. Here's a detailed look at the anatomy of a human tooth.
The Crown, Neck, and Root
The visible part of the tooth is referred to as the crown. It's covered by enamel, the hardest substance in the human body. The crown is uniquely shaped for each type of tooth, allowing for different functions such as cutting, tearing, or grinding food.

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Related Experiment Video

Updated: Jul 2, 2026

Studying Orthodontic Tooth Movement in Mice
07:17

Studying Orthodontic Tooth Movement in Mice

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Corticotomy-/osteotomy-assisted tooth movement microCTs differ.

W Lee1, G Karapetyan, R Moats

  • 1Center for Craniofacial Molecular Biology, University of Southern California, 2250 Alcazar St., Los Angeles, CA 90033, USA.

Journal of Dental Research
|August 23, 2008
PubMed
Summary
This summary is machine-generated.

Corticotomies and osteotomies induce distinct alveolar bone reactions, influencing tooth movement through either the regional accelerated phenomenon (RAP) or distraction osteogenesis. These surgical methods offer unique approaches for orthodontic treatment.

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Last Updated: Jul 2, 2026

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Published on: August 2, 2024

The Establishment of a Murine Maxillary Orthodontic Model
04:11

The Establishment of a Murine Maxillary Orthodontic Model

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Measuring Maxillary Posterior Tooth Movement: A Model Assessment using Palatal and Dental Superimposition

Published on: February 23, 2024

Area of Science:

  • Orthodontics and Dental Surgery
  • Bone Biology and Regeneration

Background:

  • Tooth movement can be accelerated using surgical interventions like corticotomy and osteotomy.
  • The underlying mechanisms, distraction osteogenesis and regional accelerated phenomenon (RAP), require further elucidation.

Purpose of the Study:

  • To investigate whether corticotomy-assisted and osteotomy-assisted tooth movement are mediated by distraction osteogenesis or regional accelerated phenomenon (RAP).
  • To compare the distinct alveolar bone reactions induced by osteotomies and corticotomies.

Main Methods:

  • 30 Sprague-Dawley rats were divided into five groups: corticotomy alone, corticotomy-assisted tooth movement, osteotomy alone, osteotomy-assisted tooth movement, and tooth movement alone.
  • Micro-computed tomography imaging was performed at baseline, 21 days, and 2 months.
  • Demineralization patterns were analyzed using pixel count data and nested ANOVA.

Main Results:

  • Regional accelerated phenomenon (RAP) was observed in the alveolar bone of corticotomy-treated animals after 21 days.
  • Distraction osteogenesis was evident in osteotomy-assisted tooth movement animals.
  • Significant differences in demineralization patterns were noted across experimental groups and bone levels.

Conclusions:

  • Osteotomies and corticotomies elicit different alveolar bone responses.
  • These distinct reactions can be strategically utilized to enhance and control tooth movement in orthodontic therapy.