Hydraulic Sealer
A bioceramic or calcium silicate-based root canal sealer that sets in the presence of moisture and expands slightly to create a hermetic seal within the canal system.
Full Definition
Hydraulic sealers, most notably bioceramic sealers (e.g., iRoot SP, AH Plus Bioceramic, TotalFill BC Sealer), are formulated from calcium silicate compounds that undergo hydraulic setting reactions when exposed to moisture in dentinal tubules. Unlike traditional epoxy resin or zinc oxide eugenol sealers, they produce hydroxyapatite on setting, promoting biocompatibility and chemical bonding to dentinal walls. Their flowability allows penetration into accessory canals and the apical delta. Editors must ensure that generic product descriptors ('bioceramic sealer', 'hydraulic sealer', 'calcium silicate sealer') are distinguished from proprietary brand names, which should be capitalised, and that the ISO classification or composition is stated in materials and methods sections.
Usage
Usage note: Avoid using proprietary brand names as generic terms (e.g., do not use 'iRoot' generically). Generic category terms ('bioceramic sealer') should be used on first mention, with brand name in parentheses if relevant.
In Context
- "Obturation was completed using a single-cone technique with a hydraulic sealer as the primary fill material." — Materials and Methods — RCT
- "The hydraulic sealer's biocompatibility was confirmed by cytotoxicity assay at 24 and 72 hours." — In vitro study — results