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Unveiling Periapical Actinomycosis: A Rare Extraradicular Infection
Wei Chun Yeoh1,2, Spoorthi Ravi Banavar2, Jothi Raamahlingam Rajaran3
1Sungai Pelek Dental Clinic, Ministry of Health Malaysia, Sungai Pelek, MYS.
Cureus
|April 2, 2025
Summary
Periapical actinomycosis, a rare infection by the bacterium Actinomyces, can cause persistent issues after root canal therapy. Surgical intervention like apicoectomy can effectively treat this condition, leading to successful healing.
Area of Science:
- Oral microbiology
- Infectious diseases
- Endodontics
Background:
- Actinomycosis is an infection caused by the Gram-positive bacterium Actinomyces, often found in the oral microbiome.
- Periapical actinomycosis is a rare form of cervicofacial actinomycosis linked to persistent periapical radiolucencies post-root canal therapy.
- This condition can arise from breaches in epithelial continuity due to procedures, trauma, or infections, allowing microbial invasion.

