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Related Concept Videos

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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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.
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The lateral view of the cranium is dominated by temporal, sphenoid, and ethmoid bones.
The temporal bone forms the lower lateral side of the skull. The temporal bone is subdivided into several regions. The flattened upper portion is the squamous portion of the temporal bone. Below this area and projecting anteriorly is the zygomatic process of the temporal bone, which forms the posterior portion of the zygomatic arch. Posteriorly is the mastoid portion of the temporal bone. Projecting...
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Bone Markings01:26

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Bones have various surface features that help form joints and attach to other soft tissues. Depending on the function, bone markings are categorized into articulating projections, processes for attachment, depressions, and openings.
Articulating Projections
Articulating projections are found where two bones meet to form a joint. These structures are usually found at the ends of bones. The largest articulation is a rounded projection called the head, supported by a narrow neck at the ends of...
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Related Experiment Video

Updated: Oct 5, 2025

Systematic Assessment of Mammalian Skull Specimens for Dental and Temporomandibular Joint Pathology
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Ectopic Tooth in Mandibular Canal, Maxillary Sinus, and Mandibular Condyle.

Mert Akbas1, Zülfikar Karabıyık2, Altan Varol3

  • 1Istanbul University, Dentistry Faculty, Department of Oral and Maxillofacial Surgery, Turkey.

Case Reports in Dentistry
|February 1, 2022
PubMed
Summary

Ectopic tooth eruption, though rare, can occur in unusual locations like the maxillary sinus. Early evaluation and minimally invasive removal are recommended if symptoms arise.

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Area of Science:

  • Dentistry
  • Oral and Maxillofacial Surgery

Background:

  • Ectopic tooth eruption is defined as a tooth erupting outside the normal tooth-bearing regions.
  • While rare, documented cases involve locations such as the maxillary sinus, nasal cavity, and orbital floor.

Observation:

  • Odontogenic tumors and cysts may develop around ectopic teeth.
  • Symptoms like orofacial pain, nasal discharge, or facial nerve paresthesia warrant evaluation for ectopic teeth.

Findings:

  • Due to the rarity and lack of treatment consensus, reporting ectopic tooth incidence is valuable.
  • Regular follow-up is advised for asymptomatic ectopic teeth.

Implications:

  • Early intervention, preferably via an intraoral approach, is the treatment of choice for symptomatic ectopic teeth.
  • Minimally invasive techniques should be prioritized to prevent scarring and nerve damage.