Focal infection theory
Focal Infection Theory
Focal Infection Theory (pronunciation: /ˈfoʊ.kəl ɪnˈfɛk.ʃən θɪər.i/) is a medical hypothesis that suggests that a local infection affecting a small area of the body can lead to subsequent health problems in other parts of the body. This theory was particularly popular in the early 20th century but has since been largely discredited.
Etymology
The term "Focal Infection Theory" is derived from the Latin words "focus" meaning "fireplace" or "center", and "infectio" meaning "to infect". The theory thus refers to an infection that originates from a central point and spreads to other areas.
History
The Focal Infection Theory was first proposed in the late 19th and early 20th centuries. It was widely accepted in the medical community until the mid-20th century when it was largely discredited due to lack of scientific evidence. However, the theory has seen a resurgence in recent years with new research suggesting a possible link between oral infections and systemic diseases.
Related Terms
- Systemic Disease: A disease that affects the whole body or multiple organ systems.
- Oral Infection: An infection that occurs in the mouth.
- Periodontal Disease: A serious gum infection that damages gums and can destroy the jawbone.
- Endocarditis: An infection of the inner lining of the heart chambers and valves.
- Bacteremia: The presence of bacteria in the blood.
Criticism
The Focal Infection Theory has been criticized for its lack of scientific evidence. Many studies have failed to find a direct causal link between local infections and systemic diseases. However, some recent research has suggested a possible association between oral infections and certain systemic diseases, such as heart disease and diabetes.
External links
- Medical encyclopedia article on Focal infection theory
- Wikipedia's article - Focal infection theory
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