Non-Surgical Management of Periapical Cystic Lesion- A Case Report

It has been reported that bacteria lodged in the root canal system plays an important role in the development and maintenance of periapical lesions. Thus, the elimination of these bacteria is of great importance for apical and periapical healing after endodontic treatment.Although chemo-mechanical preparation of root canals is able to reduce the number of bacteria, an intracanal medicament with antibacterial action is required to maximize the disinfection of the root canal system in infected cases. The need for intracanal medication increases in those cases where bacteria are resistant to routine treatment, and where the therapy cannot be successfully completed due to the presence of pain or continuing exudates.
Periapical Cystic Lesion-
Since its introduction in 1920, calcium hydroxide has been widely used in endodontics. It is a strong alkaline substance, with a pH of approximately 12.5. In an aqueous solution, calcium hydroxide dissociates into calcium and hydroxyl ions. Various biological properties have been attributed to this substance, such as antimicrobial activity, high alkalinity, inhibition of tooth resorption and tissue dissolving ability. Because of such effects, calcium hydroxide has been recommended for use as intracanal medicaments and in several other clinical situations. Several works have studied the mixture of other substances to calcium hydroxide with the purpose of improving some of its properties. Among these additional substances are vehicles that can speed up or slow down ionic dissociation, substances that aid the filling of pulpal cavity by means of their consistency, substances used as antimicrobial medium and media that enhance radiopacity. Read more..............

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