Question

Periradicular surgery is indicated when ___ is impractical or unlikely to improve on the previous result: may be the first choice for managing teeth with long ____ or irretrievable ____, nonnegotiable ledges and ___ blockages or transportation, hard cement filling materials, failures of previous ___ and suspected ___ fracture, or biopsy

Answer 1

Periradicular surgery is recommended when non-surgical retreatment is ineffective, especially in cases of complex root fractures, canal blockages, foreign objects, previous endodontic treatment failures, and when a biopsy is necessary.

Step-by-step explanation:

Periradicular surgery is indicated when non-surgical retreatment is impractical or unlikely to improve on the previous result. This type of surgery may be the first choice for managing teeth with long root fractures or irretrievable foreign objects within the canal, such as broken instruments. Additionally, it can address nonnegotiable ledges and canal blockages or transportation issues, removal of hard cement filling materials, failures of previous endodontic treatment, and when there is a suspected root fracture, or when a biopsy is needed. The goal of periradicular surgery is to preserve the tooth by removing only the affected tissue while maintaining as much healthy tooth structure as possible.