Conservative non-surgical Mx of an infected radicular cyst
The radicular cyst arises from epithelial remnants stimulated to proliferate by an inflammatory process originating from pulpal necrosis of a non-vital tooth.

Radiographically, the classical description of the lesion is a round or oval, well-circumscribed radiolucent image involving the apex of the tooth. Radicular cyst is usually sterile unless it is secondarily infected.

This article, published in the journal Contemporary Clinical Dentistry presents a successful case of conservative non-surgical management of an infected radicular cyst associated with an immature permanent mandibular second molar (47) in a 14-year-old child.

The patient complained of pus discharge from the lower part of the right side of face since 2 months. Past history revealed that the child had an obvious swelling on the right side of the face 2 months ago, which continued till the present condition. Extraoral examination revealed the presence of a sinus tract and pus discharge in relation to lower border of the right side of the mandible.

On intraoral examination, right mandibular 2 nd molar (47), right mandibular 1 st molar (46), left mandibular 2 nd molar (37) and left mandibular 1 st molar (36) were found to be decayed. 47 was found to be grossly decayed, and after excavation of caries, no pulp exposure was encountered.

OPG revealed radiolucency involving enamel, dentine and approximating pulp in relation to 47. A well-circumscribed periapical radiolucency of about 2΄ 2½ cm in dimension, involving both the mesial and distal roots of 47 along with a thin radiopaque border and an open apex was noticed, suggesting a cystic lesion.

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