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Teeth

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 Anatomy

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.

Nose and Nasal Cavity

Nose and Nasal Cavity

The nose is composed of an observable exterior segment (external nose) and an internal segment within the skull known as the nasal cavity (internal nose). The external nose, visible on the face, consists of a framework of bone and hyaline cartilage enveloped in skin and muscle and lined with a mucous membrane. This structure is supported by the frontal bone, nasal bones, and maxillary bone and is supplemented by a cartilaginous framework comprising the septal nasal cartilage, lateral nasal...

Cranial Bones: Lateral View

Cranial Bones: Lateral View

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...

Anatomy of Respiratory System I: Upper Respiratory Tract

Anatomy of Respiratory System I: Upper Respiratory Tract

The upper respiratory tract plays a vital role in the respiratory system, comprising several structures that facilitate air intake and prepare air for the lungs. It also serves as the first line of defense against pathogens and particles. This tract includes the nose and nasal cavity, the oral cavity, the paranasal sinuses, and the pharynx, each with specific functions and features.
Nose and nasal cavity
The nose and nasal cavity represent the main external openings of the respiratory tract.

The Hyoid Bone

The Hyoid Bone

The hyoid bone is a small U-shaped bone located in the upper neck at the level of the inferior mandible, with its tips pointing posteriorly. It does not directly articulate with any other bone in the body. The hyoid acts as the attachment site for the tongue, the larynx, and the pharynx. It is held in position by a series of small muscles attached from above or below. These muscles help to move the hyoid up/down or forward/back in coordination with movements of the tongue, larynx, and pharynx...

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Systematic Assessment of Mammalian Skull Specimens for Dental and Temporomandibular Joint Pathology

Systematic Assessment of Mammalian Skull Specimens for Dental and Temporomandibular Joint Pathology

Published on: August 22, 2022

The supernumerary nasal tooth.

R Kirmeier¹, A Truschnegg, M Payer

¹Department of Oral Surgery and Radiology, School of Dentistry, Medical University of Graz, Graz, Austria. robert.kirmeier@medunigraz.at

International Journal of Oral and Maxillofacial Surgery

|July 15, 2009

Summary

This summary is machine-generated.

Supernumerary nasal teeth, an uncommon condition, can cause recurrent nasal symptoms. This case report details the diagnosis and novel examination of an erupted supernumerary tooth in the nasal cavity.

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Area of Science:

Otorhinolaryngology
Oral and Maxillofacial Surgery
Radiology

Background:

Supernumerary teeth typically occur in the oral cavity, but eruption into the nasal cavity is a rare pathological entity.
Nasal teeth can lead to symptoms such as recurrent infections, nasal obstruction, and fetid discharge.

Observation:

A female patient presented with recurrent left nasal cavity complaints and fetid discharge.
Computed tomography (CT) confirmed the clinical suspicion of a supernumerary nasal tooth.
Endoscopic surgical removal was performed for the nasal tooth.

Findings:

The removed supernumerary nasal tooth was analyzed using X-ray microtomography and thin-section preparations, providing novel insights.
This case report contributes to the limited literature, with a total of 25 supernumerary nasal teeth identified in 23 patients.

Implications:

Accurate diagnosis of supernumerary nasal teeth is crucial for effective management and symptom resolution.
Advanced imaging and histological techniques offer new avenues for understanding these rare dental anomalies.
This case highlights the importance of considering ectopic dental eruption in the differential diagnosis of complex sinonasal conditions.