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Published in last 50 years
A case of actinomycosis arising within the masseter following extraction of a lower second molar is reported. The most likely cause was a needle tract infection from the planned administration of the local anaesthetic.
When local anesthetic agents are injected through the integument of the body, surface microorganisms may be introduced into the underlying tissues. Pathogenic microorganisms of the oral cavity, for example, may be introduced by the injection needle into deeper tissue. A case of needle tract infection was documented and is presented in this article.