Abstract
This article reports non-surgical endodontic retreatment of two patients with persistent or recurrent periapical lesions, who had previously undergone surgical and non-surgical endodontic therapy respectively. It further discusses and reviews the relevance of classification of periapical lesions, the explanation behind healing of periapical lesions by endodontic therapy alone, causes of persistence of periapical lesions, choice of treatment modalities (whether surgical or non – surgical) and materials such as intracanal medicaments and irrigants for optimal healing. Key words:Non-surgical, retreatment, periapical, calcium hydroxide, chlorhexidine irrigation.
Highlights
The classification of periapical lesions into abscesses, granulomata and cysts is common knowledge
Upto 85% treatment success has been reported for periapical lesions after endodontic therapy alone [6,7,8]. which implies that most periapical lesions including cysts respond to endodontic therapy alone, as discussed by Nair (1999) [9]
Many factors may result in persistence of periapical radiolucencies, such as (i) intraradicular infection, (ii) extraradicular infections, (iii) foreign body reaction, (iv) true cysts or (v) fibrous scar tissue [18]
Summary
The classification of periapical lesions into abscesses, granulomata and cysts is common knowledge. Upto 85% treatment success has been reported for periapical lesions after endodontic therapy alone [6,7,8]. Which implies that most periapical lesions including cysts respond to endodontic therapy alone, as discussed by Nair (1999) [9].
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