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Related Concept Videos

Anatomy of Respiratory System I: Upper Respiratory Tract01:29

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.
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.
Physical Assessment of the Respiratory Tract I: Health History01:28

Physical Assessment of the Respiratory Tract I: Health History

Physical assessment of the respiratory tract is critical to patient care. It allows healthcare professionals to identify and manage various respiratory conditions. The process involves a combination of subjective and objective data collection.
Subjective Data
Subjective data provides vital information about the patient's health history and symptoms. This data is typically collected through interviews in which patients describe their experiences, symptoms, and concerns.
Health history and key...
Nose and Nasal Cavity01:24

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 View01:27

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...
Chronic Pharyngitis01:23

Chronic Pharyngitis

Chronic pharyngitis refers to persistent inflammation of the pharyngial mucosa.
Etiology
It often arises from persistent viral or bacterial infections affecting sinuses and tonsils.
Additional contributing factors include inadequate dental hygiene, mouth breathing, recurring tonsillitis, allergic rhinitis, laryngopharyngeal reflux, and exposure to smoke, chemicals, and other environmental pollutants. Allergic reactions to pollen, mold, and pet dander, chronic cough, excessive voice usage,...

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Related Experiment Video

Updated: Jun 4, 2026

Systematic Assessment of Mammalian Skull Specimens for Dental and Temporomandibular Joint Pathology
07:26

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

Published on: August 22, 2022

Facial sinuses from dental pathosis.

A Ruprecht, L R Chasmar, D T Lanigan

    Canadian Family Physician Medecin De Famille Canadien
    |February 3, 2011
    PubMed
    Summary
    This summary is machine-generated.

    Facial sinus tracts can stem from dental issues. Ruling out dental pathosis with intraoral exams and radiographs is crucial before antibiotics or surgery, as treating the root cause resolves the tract.

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    Area of Science:

    • Oral and Maxillofacial Surgery
    • Dermatology
    • Infectious Diseases

    Background:

    • Facial sinus tracts are sometimes misdiagnosed.
    • Dental infections can present as cutaneous lesions.
    • Prolonged treatments may be ineffective if the etiology is missed.

    Purpose of the Study:

    • To highlight dental pathosis as a cause of facial sinus tracts.
    • To emphasize the importance of intraoral examination for diagnosis.
    • To present cases where treating dental issues resolved facial lesions.

    Main Methods:

    • Clinical intraoral examination.
    • Radiographic imaging (dental X-rays).
    • Case study analysis of four patients.

    Main Results:

    • Dental pathosis was confirmed as the etiology in all presented cases.
    • Intraoral examination and radiography aided diagnosis.
    • Treatment of the underlying dental pathology led to sinus tract resolution.

    Conclusions:

    • Dental pathosis is a significant differential diagnosis for facial sinus tracts.
    • Thorough intraoral assessment is essential for accurate diagnosis and effective management.
    • Conservative management of the dental source can obviate the need for extensive surgical or antibiotic treatment.