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Related Concept Videos

Teeth01:15

Teeth

366
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...
366
Tooth Anatomy01:21

Tooth Anatomy

403
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...
403
Psychosexual Stages of Personality: Oral01:16

Psychosexual Stages of Personality: Oral

635
The oral stage is the initial phase of Sigmund Freud's theory of psychosexual development, occurring from birth to approximately 12 to 18 months. During this period, the infant's mouth serves as the primary source of pleasure, with actions such as sucking, chewing, biting, and drinking playing a crucial role in reducing tension. These activities are essential not only for nourishment but also for the infant's psychological and emotional satisfaction.
Weaning, typically occurring...
635
Oral Cavity01:11

Oral Cavity

548
The oral cavity, or the mouth, is a complex structure in humans that plays a vital role in our day-to-day lives. Its role is not only in chewing and swallowing food; it also plays a role in speech and facial expressions.
Teeth: The teeth are the hardest structures in our bodies. Humans have two sets of teeth throughout their lifetime: deciduous (baby) teeth and permanent teeth. Each tooth consists of several parts: the crown (visible part), the root (embedded in the jaw), enamel (hard outer...
548
Bone Formation by Intramembranous Ossification01:29

Bone Formation by Intramembranous Ossification

5.8K
Intramembranous ossification is one of the two processes involved in the development of bones within an embryo. The flat bones of the face, most of the cranial bones, and the clavicles are formed via this process. During intramembranous ossification, the bones develop directly from sheets of undifferentiated mesenchymal connective tissue.
The process begins when mesenchymal cells in the embryonic skeleton gather together and differentiate into osteogenic cells, which then develop into ...
5.8K
Bone Formation by Endochondral Ossification01:24

Bone Formation by Endochondral Ossification

4.2K
Bone formation, or ossification, begins around the sixth to seventh week of embryonic development. Most bones develop from a cartilaginous template through the process of endochondral ossification. Cartilage formation begins when clusters of mesenchymal cells differentiate into chondrocytes. These chondrocytes proliferate rapidly and secrete an extracellular matrix that becomes encased in a membrane called the perichondrium. The resulting cartilage model provides a template that resembles the...
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Related Experiment Video

Updated: Jun 17, 2025

The Slice Culture Method for Following Development of Tooth Germs In Explant Culture
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The Slice Culture Method for Following Development of Tooth Germs In Explant Culture

Published on: November 13, 2013

14.1K

How do teeth erupt?

Daniel Stonehouse-Smith1, Laura Ota2, Jadbinder Seehra1

  • 1Centre for Craniofacial & Regenerative Biology, Department of Orthodontics, Faculty of Dental, Oral & Craniofacial Sciences, King´s College London, London, UK.

British Dental Journal
|August 9, 2024
PubMed
Summary
This summary is machine-generated.

Tooth eruption is crucial for normal occlusion, involving complex axial movement and gingival penetration. Mouse models are advancing our understanding of these mechanisms and their links to human eruption disorders.

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Related Experiment Videos

Last Updated: Jun 17, 2025

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Area of Science:

  • Developmental biology
  • Oral biology
  • Genetics

Background:

  • Normal occlusion depends on precise tooth eruption from jaw to oral cavity.
  • Tooth eruption involves axial migration and gingival eruption, with poorly understood regulatory mechanisms.
  • Teeth maintain eruptive potential throughout life.

Purpose of the Study:

  • To outline current understanding of mammalian tooth eruption mechanisms.
  • To discuss the relevance of these mechanisms to human tooth eruption disorders.

Main Methods:

  • Utilizing mouse models to study tooth eruption.
  • Reviewing existing literature on molecular and biological mechanisms.

Main Results:

  • Elucidation of some underlying molecular and biological mechanisms of tooth eruption using mouse models.
  • Identification of key processes regulating tooth migration and gingival eruption.

Conclusions:

  • Mouse models provide valuable insights into tooth eruption.
  • Understanding eruption mechanisms is critical for addressing human disorders of tooth eruption.