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Related Concept Videos

Teeth01:15

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 Anatomy01:21

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 17, 2026

Experimental Model of Ligature-Induced Peri-Implantitis in Mice
05:37

Experimental Model of Ligature-Induced Peri-Implantitis in Mice

Published on: May 17, 2024

Ridge preservation after tooth extraction.

Ren E Wang1, Niklaus P Lang

  • 1The University of Hong Kong, Prince Philip Dental Hospital, Hong Kong SAR, PR China.

Clinical Oral Implants Research
|October 16, 2012
PubMed
Summary
This summary is machine-generated.

Alveolar ridge preservation after tooth extraction is crucial for dental implants. Guided bone regeneration with bone substitutes and membranes effectively preserves ridge height and width, unlike implants in fresh sockets or root-formed implants.

Related Experiment Videos

Last Updated: May 17, 2026

Experimental Model of Ligature-Induced Peri-Implantitis in Mice
05:37

Experimental Model of Ligature-Induced Peri-Implantitis in Mice

Published on: May 17, 2024

Area of Science:

  • Dental Implantology
  • Periodontology
  • Biomaterials Science

Background:

  • Tooth extraction leads to alveolar ridge dimensional changes, complicating dental implant placement.
  • Alveolar ridge preservation techniques aim to mitigate post-extraction bone loss.

Purpose of the Study:

  • To review recent studies on alveolar ridge preservation techniques.
  • To identify new insights and effective methods for maintaining alveolar bone dimensions.

Main Methods:

  • Review of recent animal and clinical studies.
  • Evaluation of various bone substitutes and regenerative techniques.

Main Results:

  • Immediate implants in extraction sockets do not prevent bone resorption.
  • Simultaneous guided bone regeneration offers partial resolution of bone loss.
  • Root-formed implants are ineffective for ridge preservation.
  • Magnesium-enriched hydroxyapatite, human demineralized bone matrix, and deproteinized bovine bone mineral are effective bone substitutes.
  • Guided bone regeneration with bone substitutes and collagen membranes preserves ridge height and width.

Conclusions:

  • Guided bone regeneration using specific bone substitutes and membranes is a viable strategy for alveolar ridge preservation.
  • Techniques like immediate implant placement or root-formed implants do not achieve ridge preservation.
  • Soft tissue grafts and primary closure show no significant benefit in preserving alveolar bone.