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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: May 16, 2026

Establishment of a Murine Pulp Exposure Model with a Novel Mouth-Gag for Pulpitis Research

Establishment of a Murine Pulp Exposure Model with a Novel Mouth-Gag for Pulpitis Research

Published on: October 27, 2023

Pulp polyp in traumatized primary teeth--a case-control study.

Nadia Salem Abdel Jabbar¹, Janaina Merli Aldrigui, Mariana Minatel Braga

¹Department of Orthodontics and Pediatric Dentistry, School of Dentistry, University of São Paulo - FOUSP, São Paulo, Brazil.

Dental Traumatology : Official Publication of International Association for Dental Traumatology

|November 21, 2012

Summary

Pulp polyps in traumatized primary teeth occur infrequently (2.3%) and are more common in younger children. These polyps do not influence treatment decisions for dental injuries.

Keywords:

child crown fracture dental trauma hyperplastic pulpitis primary tooth pulp polyp

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Development of a Direct Pulp-capping Model for the Evaluation of Pulpal Wound Healing and Reparative Dentin Formation in Mice

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Published on: January 12, 2017

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Last Updated: May 16, 2026

Establishment of a Murine Pulp Exposure Model with a Novel Mouth-Gag for Pulpitis Research

Establishment of a Murine Pulp Exposure Model with a Novel Mouth-Gag for Pulpitis Research

Published on: October 27, 2023

Development of a Direct Pulp-capping Model for the Evaluation of Pulpal Wound Healing and Reparative Dentin Formation in Mice

Development of a Direct Pulp-capping Model for the Evaluation of Pulpal Wound Healing and Reparative Dentin Formation in Mice

Published on: January 12, 2017

Area of Science:

Pediatric Dentistry
Dental Traumatology
Oral Pathology

Background:

Traumatic dental injuries are common in primary teeth.
Pulp polyp, a form of pulpitis, can occur following dental trauma.
Understanding factors associated with pulp polyp and its impact on treatment is crucial.

Purpose of the Study:

To assess clinical characteristics and associated factors of pulp polyp in traumatized primary teeth.
To evaluate the impact of pulp polyp on clinical decision-making after traumatic injuries.

Main Methods:

Descriptive and association analyses for pulp polyp occurrence and characteristics.
Case-control study to determine factors associated with pulp polyp.
Logistic regression to investigate pulp polyp's association with treatment decisions (extraction vs. endodontics).

Main Results:

Pulp polyp occurred in 2.3% of traumatized primary teeth.
Younger children (≤2 years) had a higher likelihood of pulp polyp (OR 3.15).
Pulp polyp presence did not influence the choice between dental extraction and endodontic treatment.

Conclusions:

Pulp polyp is an infrequent complication of traumatized primary teeth.
Occurrence is associated with younger age at the time of injury.
Pulp polyp does not directly impact therapeutic decisions for traumatized primary teeth.