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Related Concept Videos

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.
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...

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Related Experiment Video

Updated: Jun 9, 2026

Lateral Molar Approach-Driven Transoral Endoscopic Procedure for Benign Infratemporal Fossa Tumor Resection
04:04

Lateral Molar Approach-Driven Transoral Endoscopic Procedure for Benign Infratemporal Fossa Tumor Resection

Published on: August 15, 2025

Severe root resorption associated with ectopically erupting teeth: a case report.

Hatsue Kakuta1, Shinya Sone, Hiroki Matsumoto

  • 1Department of Pediatric Dentistry, Iwate Medical University, Morioka, Japan.

Journal of Dentistry for Children (Chicago, Ill.)
|September 8, 2010
PubMed
Summary

This study details orthodontic treatment for a boy with ectopic eruption of permanent teeth, including canine and molar impaction. Treatment involved extractions, surgical exposure, and specialized appliances to guide teeth into proper alignment.

Related Experiment Videos

Last Updated: Jun 9, 2026

Lateral Molar Approach-Driven Transoral Endoscopic Procedure for Benign Infratemporal Fossa Tumor Resection
04:04

Lateral Molar Approach-Driven Transoral Endoscopic Procedure for Benign Infratemporal Fossa Tumor Resection

Published on: August 15, 2025

Area of Science:

  • Dentistry
  • Orthodontics
  • Pediatric Dentistry

Background:

  • Ectopic eruption of permanent teeth, particularly canines and molars, is a significant clinical concern in pediatric dentistry.
  • Root resorption of adjacent teeth can complicate ectopic eruption cases, necessitating careful diagnosis and management.
  • Early identification and intervention are crucial for successful orthodontic outcomes in children.

Observation:

  • A 12-year-old Japanese male presented with ectopic eruption of permanent maxillary canines and permanent mandibular second molars.
  • Root resorption of adjacent permanent teeth was observed, indicating potential complications.
  • Maxillary lateral incisors were extracted to facilitate treatment for the ectopically erupting canines.

Findings:

  • Fenestration and orthodontic traction were employed for the impacted maxillary canines, guiding them to the occlusal position.
  • A lingual arch appliance and sectional arch wire were utilized for canine alignment.
  • Distalization of the mandibular second molars was achieved using a specifically designed appliance to minimize tooth load.

Implications:

  • This case highlights the successful management of complex ectopic eruption with associated root resorption through a combination of surgical and orthodontic techniques.
  • The use of tailored appliances, such as the lingual arch and sectional arch wire, demonstrates effective strategies for canine eruption guidance.
  • The study underscores the importance of individualized treatment planning and appliance selection in resolving ectopic tooth eruption and preventing further complications in pediatric patients.