Related Experiment Video
Updated: Sep 28, 2026

A Lip Fixation Device Facilitates Labial Salivary Gland Biopsy for Sjögren's Disease
Published on: March 6, 2026
Acute streptococcal infection of the gingiva, lower lip, and pharynx--a case report
Joseph Katz1, Marcio Guelmann, Matthew Rudolph
1Division of Oral Medicine, Department of Oral Surgery and Diagnostic Sciences, University of Florida, College of Dentistry, Gainesville, FL 32610-0416, USA. jkatz@dental.ufl.edu
Background:
Streptococcal gingivostomatitis is a rare phenomenon in a non-compromised host and not commonly reported in the dental literature. Early diagnosis and distinction from viral infections, especially HSV infection, are of the utmost importance. The early use of penicillin is essential in preventing a cascade of events, resulting in severe fasciitis, destruction of tissues, and subsequent rheumatic fever and rheumatic heart disease.
Methods:
A unique case of group A beta-hemolytic streptococcal infection affecting the pharynx, lower lip, and gingiva of a healthy 19-year-old male is presented.
Results:
The streptococcal infection was responsive to penicillin treatment.
Conclusions:
In view of the increased use of antibiotics and the development of aggressive strains, the dental clinician has to consider streptococcal infection in the differential diagnosis of gingival and soft tissue infections.
Related Concept Videos
Streptococcal Pharyngitis
Acute Pharyngitis
Acute pharyngitis is the inflammation of the back of the throat (pharynx), commonly resulting in a sore throat. It is a frequently encountered condition that prompts individuals to seek medical advice.
Classification
Acute pharyngitis can be categorized based on its underlying cause:
Tonsillitis I: Introduction
Etiology
Three primary contributing factors have been identified.
Staphylococcal Skin Infections
Rheumatic Heart Disease I: Introduction
Chronic Pharyngitis
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,...