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Related Concept Videos

Teeth01:15

Teeth

2.4K
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...
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Tooth Anatomy01:21

Tooth Anatomy

3.0K
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...
3.0K

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Related Experiment Video

Updated: Apr 16, 2026

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

M Goldberg1, J J Lasfargues

  • 1Laboratoire de Biologie et Biomatériaux du Milieu Buccal et Osseux, Faculté de Chirurgie Dentaire, Université Paris V, France.

Journal of Dentistry
|February 1, 1995
PubMed
Summary
This summary is machine-generated.

The pulpo-dentinal complex concept, while acknowledging dentino-pulpal reactions, is an oversimplification. Further research is needed for accurate restorative treatments and tissue repair strategies.

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Area of Science:

  • Dental Biology
  • Histology
  • Biochemistry

Background:

  • The concept of a pulpo-dentinal complex suggests a unified organ formed by pulp and dentine during early tooth development.
  • However, distinct cellular and extracellular matrix differences emerge between these tissues at later developmental stages.

Purpose of the Study:

  • To evaluate the validity of the pulpo-dentinal complex concept in human teeth.
  • To re-examine existing biochemical and biological data in dental literature.
  • To assess implications for restorative treatments and tissue repair strategies.

Main Methods:

  • Human teeth were treated following ISO biological evaluation tests.
  • Teeth were extracted after 1 or 3 months for histological examination.
  • Biochemical and biological data from existing literature were reviewed.

Main Results:

  • Early tooth development shows close links between pulp and dentine, forming an undivided organ.
  • Later developmental stages reveal significant differences in cells (odontoblasts vs. pulpal cells) and extracellular matrix (collagens, proteins, phospholipids) between dentine and pulp.
  • Distinct differences are observed in inflammatory and repair processes within these tissues.

Conclusions:

  • The concept of a pulpo-dentinal complex is an oversimplification and requires re-evaluation.
  • While dentino-pulpal reactions exist, the complex is not a single entity.
  • Findings may influence the evaluation of dental restorative treatments and tissue regeneration approaches.