“…Perforations in the pulpal floor or coronal third of the root may be potentially repaired through pulp chamber access (81)(82)(83)(84) and sealed with such materials as amalgam, light-cured materials, plaster of pans, hydroxyapatite, demineralized freeze-dried bone, mineral trioxide aggregate, super EBA cement (HanyJ. Bosworth, Skokie, IL, USA), IRh4 (Dentsply International, Milford, DE, USA), Cavit (ESPE-America, Norristown, PA, USA), and glass ionomer (73,74,(85)(86)(87)(88)(89)(90)(91)(92)(93). Unfortunately, the differential benefits of these materials are difficult to evaluate, owing to their potential extrusion into the adjacent periodontal tissues.…”