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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: Jun 2, 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

[Maxillary second molar with five root canals: a case report].

Zheng Zhu1, Shou-liang Zhao

  • 1Department of Endodontics, School of Stomatology, Tongji University, Shanghai 200072, China. longmarchzhu@hotmail.com

Shanghai Kou Qiang Yi Xue = Shanghai Journal of Stomatology
|May 14, 2011
PubMed
Summary
This summary is machine-generated.

This study reports a rare case of a maxillary second molar with five root canals, including two palatal and two mesiobuccal canals. Successful root canal treatment was achieved for this complex dental anatomy.

Related Experiment Videos

Last Updated: Jun 2, 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:

  • Endodontics
  • Dental Anatomy

Background:

  • Maxillary second molars exhibit significant root canal anatomical variations.
  • Most maxillary second molars present with three root canals.

Observation:

  • A rare case involving a maxillary second molar with an unusual canal configuration was identified.
  • This specific molar presented with five root canals, deviating from typical anatomy.

Findings:

  • The maxillary second molar had a total of five root canals.
  • The observed anomaly included two palatal root canals and two mesiobuccal root canals.
  • Successful endodontic treatment was performed on the affected tooth.

Implications:

  • Understanding rare root canal variations is crucial for successful endodontic therapy.
  • This case highlights the importance of thorough diagnostic imaging in endodontics.
  • Such anatomical complexities necessitate advanced clinical techniques for effective treatment.