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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,...
Chronic Obstructive Pulmonary Disease III: Chronic Bronchitis Features01:24

Chronic Obstructive Pulmonary Disease III: Chronic Bronchitis Features

Chronic bronchitis is a key phenotype of chronic obstructive pulmonary disease (COPD), characterized by airway-centered inflammation and mucus overproduction. It develops from long-term exposure to harmful particles or gases, most commonly cigarette smoke, which triggers a persistent inflammatory response.Cellular and Structural ChangesInflammation initially affects the large bronchi and later the smaller airways, with infiltration by immune cells, including neutrophils, macrophages, and...
Tonsillitis II: Management01:26

Tonsillitis II: Management

This lesson will focus on the different treatment options for managing tonsillitis, which typically depend on the cause and severity.
Tonsillitis I: Introduction01:30

Tonsillitis I: Introduction

Tonsillitis is inflammation of the tonsils, which are two lymphoid tissue masses at the back of the throat. This condition can cause discomfort and irritation in the throat.
Etiology
Three primary contributing factors have been identified.

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Related Experiment Video

Updated: Jun 24, 2026

Oral Biofilm Formation on Different Materials for Dental Implants
11:19

Oral Biofilm Formation on Different Materials for Dental Implants

Published on: June 24, 2018

Chronic maxillary sinusitis associated with dental impression material.

Moacyr-Tadeu V Rodrigues1, Etiene-de Andrade Munhoz, Camila-Lopes Cardoso

  • 1Department of Stomatology, Bauru Dental School, University of São Paulo, Bauru, São Paulo, Brasil.

Medicina Oral, Patologia Oral Y Cirugia Bucal
|April 1, 2009
PubMed
Summary
This summary is machine-generated.

A case report details a 62-year-old man with chronic maxillary sinusitis caused by a zinc oxide-eugenol paste foreign body. Treatment involved sinus debridement and fistula closure, resolving the sinusitis.

Related Experiment Videos

Last Updated: Jun 24, 2026

Oral Biofilm Formation on Different Materials for Dental Implants
11:19

Oral Biofilm Formation on Different Materials for Dental Implants

Published on: June 24, 2018

Area of Science:

  • Dentistry
  • Otolaryngology
  • Radiology

Background:

  • Chronic maxillary sinusitis can arise from various causes, including odontogenic origins.
  • Foreign bodies within the maxillary sinus can lead to persistent inflammation and infection.

Observation:

  • A 62-year-old edentulous male presented with hyperplasia of the anterior lower jaw mucosa and an oroantral fistula.
  • Radiographs and CT scans revealed a radiopaque foreign body in the maxillary sinus with associated opacification and soft tissue mass.
  • The patient reported intermittent episodes of pus taste and headaches, suggestive of sinusitis.

Findings:

  • Microscopic and chemical analysis confirmed the foreign body as zinc oxide-eugenol paste.
  • Surgical sinus debridement and oroantral fistula closure were performed.
  • Post-operative follow-up showed successful fistula closure and resolution of sinusitis symptoms.

Implications:

  • This case highlights a rare odontogenic cause of chronic maxillary sinusitis.
  • It underscores the importance of thorough patient history and advanced imaging in diagnosing complex sinus conditions.
  • Management of foreign body-induced sinusitis requires addressing both the sinus pathology and the causative agent.