Violation
A retrograde filling is indicated
when conventional endodontic is impractical
When the apical foramen cannot be sealed by conventional endodontics
When a root perforation needs to be sealed
All of the above
A retrograde filling is indicated
when conventional endodontic is impractical
When the apical foramen cannot be sealed by conventional endodontics
When a root perforation needs to be sealed
All of the above