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Tooth Anatomy

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.

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: Jun 10, 2026

Digital Hybrid Model Preparation for Virtual Planning of Reconstructive Dentoalveolar Surgical Procedures

Digital Hybrid Model Preparation for Virtual Planning of Reconstructive Dentoalveolar Surgical Procedures

Published on: August 5, 2021

Single-Tooth Modeling for 3D Dental Model.

Tianran Yuan¹, Wenhe Liao, Ning Dai

¹College of Mechanical and Electrical Engineering, Nanjing University of Aeronautics and Astronautics, Nanjing, Jiangsu 210016, China.

International Journal of Biomedical Imaging

|August 7, 2010

Summary

This summary is machine-generated.

This study introduces a new method for creating accurate 3D dental models of individual teeth from optical scans. The technique effectively separates and restores tooth shapes, crucial for digital dentistry applications.

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Area of Science:

Biomedical Engineering
Computer-Aided Design/Manufacturing (CAD/CAM)

Background:

Accurate 3D dental models are essential for modern dentistry.
Existing methods may struggle with precise single-tooth segmentation and reconstruction.

Purpose of the Study:

To propose an integrated scheme for single-tooth modeling from optical digitizer-acquired 3D dental data.
To enhance the accuracy and efficiency of individual tooth reconstruction in digital dental workflows.

Main Methods:

Extraction of fusion regions between adjacent teeth based on minimum surface curvature.
Restoration of individual tooth shape using bioinformation from generated hole boundaries.
Separation of teeth using extracted boundaries from teeth-soft tissue interfaces.

Main Results:

The proposed method successfully identifies and classifies fusion regions.
Accurate restoration of single tooth shapes with high approximation to real teeth.
Correct and sequential separation of individual teeth from the overall 3D dental model.

Conclusions:

The integrated single-tooth modeling scheme provides satisfying results for 3D dental models.
The method meets the requirements of clinical oral medicine for precise dental restorations.
This approach advances digital dentistry by enabling accurate individual tooth modeling.