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Teeth

Teeth

The formation of teeth, also known as odontogenesis, is a complex process that begins in utero, around the sixth week of embryonic development. There are three stages to this process: the bud stage, the cap stage, and the bell stage.
In the bud stage, the tooth germ (an aggregation of cells) starts to form in the developing jawbone. During the cap stage, the tooth germ differentiates into enamel organ, dental papilla, and dental sac, which will later develop into the tooth's enamel, dentin and...

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Related Experiment Video

Updated: Jul 19, 2026

The Establishment of a Murine Maxillary Orthodontic Model

The Establishment of a Murine Maxillary Orthodontic Model

Published on: October 27, 2023

Experimental-numerical analysis of minipig's multi-rooted teeth.

A N Natali¹, E L Carniel, P G Pavan

¹Centre of Mechanics of Biological Materials, University of Padova, Italy.

Journal of Biomechanics

|November 1, 2006

Summary

This study combines experimental and numerical methods to analyze the biomechanical behavior of the periodontal ligament (PDL). Findings provide a foundation for understanding how mechanical forces in the PDL influence cellular activity during orthodontic treatment.

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Published on: October 27, 2023

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Area of Science:

Biomedical Engineering
Biomechanics
Dental Research

Background:

The periodontal ligament (PDL) plays a crucial role in tooth stability and response to mechanical forces.
Understanding PDL biomechanics is essential for optimizing orthodontic treatments and preventing complications.

Purpose of the Study:

To investigate the biomechanical behavior of the periodontal ligament (PDL) using a combined experimental and numerical approach.
To establish a reliable model for predicting PDL response to mechanical stimuli.
To lay the groundwork for correlating PDL mechanical status with cellular activity induction in orthodontics.

Main Methods:

Experimental analysis of a two-rooted pig premolar tooth to determine morphological configuration and deformational response.
Development of a numerical model employing an anisotropic hyperelastic formulation that accounts for tissue structural arrangement.
Evaluation of PDL constitutive model parameters using in vitro experimental data from literature.
Creation of solid models based on morphometric data for numerical simulations.
Reciprocal validation of experimental and numerical data to ensure result reliability.

Main Results:

The study successfully integrated experimental and numerical data to characterize PDL biomechanics.
A validated anisotropic hyperelastic model for the PDL was developed.
The research established a reliable method for assessing the mechanical status of the PDL.

Conclusions:

The combined experimental and numerical approach provides a robust framework for analyzing PDL biomechanics.
This preliminary investigation is vital for future studies on the relationship between PDL mechanical status and cellular responses in orthodontic treatments.
The findings contribute to a deeper understanding of mechanobiology relevant to dental applications.