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Related Concept Videos

Teeth01:15

Teeth

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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

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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...
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Related Experiment Video

Updated: Aug 13, 2025

Studying Orthodontic Tooth Movement in Mice
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Tooth Complications after Orthodontic Miniscrews Insertion.

Angelo Michele Inchingolo1, Giuseppina Malcangi1, Stefania Costa1

  • 1Department of Interdisciplinary Medicine, University of Bari "Aldo Moro", 70124 Bari, Italy.

International Journal of Environmental Research and Public Health
|January 21, 2023
PubMed
Summary

Orthodontic miniscrews (OMs) offer skeletal anchorage but can cause dental damage like root perforation. Careful site selection is crucial to minimize risks and prevent complications.

Keywords:
insertionminiscrewsnerveorthodonticroottooth complications

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Area of Science:

  • Dentistry
  • Orthodontics
  • Dental Implantology

Background:

  • Orthodontic miniscrews (OMs) are integral for skeletal anchorage in modern orthodontics.
  • Despite a high safety profile, complications during insertion can occur.
  • Potential risks include tooth root perforation and periodontal ligament trauma.

Purpose of the Study:

  • To analyze the potential risks and dental complications associated with orthodontic miniscrew use.
  • To identify factors influencing the occurrence and severity of these complications.

Main Methods:

  • A comprehensive literature search was performed across PubMed, Cochrane, Web of Science, and Scopus.
  • Keywords included "orthodontic mini-screw" and "dental damage".
  • 13 relevant studies were selected after screening 99 initial results and citation searches.

Main Results:

  • Four studies reported accidental injuries from orthodontic miniscrew insertion.
  • Most injuries were root-level, resolving spontaneously with prompt miniscrew removal.
  • Severe cases involved irreversible nerve damage, dentin-pulp complex lesions, and refractory periapical periodontitis.

Conclusions:

  • The insertion site selection is a critical factor in preventing orthodontic miniscrew-related dental complications.
  • While many injuries are minor and resolve, severe outcomes necessitate advanced endodontic or surgical intervention.
  • Further research into optimal placement strategies is warranted to enhance patient safety.