PARULIS is an inflammatory enlargement observed in_______________?
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Answer: A. End of sinus tract
Explanation
Parulis is an inflammatory swelling that commonly appears at the end of a sinus tract associated with an infected tooth. Also known as a gum boil, it forms when chronic dental infections drain into the oral cavity. The presence of a parulis typically indicates underlying pulpal necrosis and localized bone abscess formation. A dental sinus tract develops as a pathway for purulent exudate to escape from deep periapical infections. When the pus reaches the mucosal surface, it creates a nodular swelling termed a parulis. Treatment usually involves root canal therapy or extraction of the offending necrotic tooth.
Extraction sockets heal through blood clot formation and bone remodeling rather than developing chronic sinus tracts. While calculus causes gingivitis, a parulis specifically stems from pulpal infection rather than superficial plaque irritation. The correct option is explicitly listed, rendering none of the above incorrect.
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