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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...

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.

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Related Experiment Video

Updated: May 8, 2026

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

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Published on: August 5, 2021

Facially driven guided crown lengthening using a complete digital workflow: A dental technique.

Hani Tohme¹, Marta Revilla-León², Layal Bou Semaan³

¹Head, Digital Dentistry, Department of Digital Dentistry, AI, and Evolving Technologies, Saint Joseph University of Beirut, Beirut, Lebanon; and Director, Postgraduate Program, Department of Removable Prosthodontics, Faculty of Dental Medicine, Saint Joseph University of Beirut, Beirut, Lebanon.

The Journal of Prosthetic Dentistry

|February 22, 2024

Summary

This summary is machine-generated.

This study presents a digital method for guided crown lengthening using virtual smile design and 3D facial scans. This approach allows for virtual smile design and surgical planning of the crown lengthening procedure.

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Area of Science:

Dentistry
Digital Dentistry
Esthetic Dentistry

Background:

Traditional crown lengthening can be subjective.
Integrating digital tools can improve predictability and esthetics.

Purpose of the Study:

To present a novel digital guided crown lengthening method.
To integrate virtual smile design with static 3D facial scanning for enhanced planning.

Main Methods:

A facially driven digital approach was developed.
Utilized virtual smile design (VSD) software.
Incorporated static 3-dimensional (3D) face scans for extraoral soft tissue data.

Main Results:

The method allows for virtual design of the new smile.
Enables precise surgical planning of the crown lengthening procedure.
Provides a digital workflow for esthetic rehabilitation.

Conclusions:

This digital guided method enhances the predictability of crown lengthening.
Virtual smile design and 3D facial scanning offer a comprehensive planning tool.
Facially driven digital planning improves esthetic outcomes in restorative dentistry.