Bioceramic Sealers: An Upgrade to Predictable Endodontic Outcomes

Bioceramic sealers, primarily calcium silicate-based materials, represent a significant technological advancement in the endodontic space, shifting the focus of treatment from simply filling a void to actively promoting tissue regeneration and healing. While epoxy resin-based sealers have long been considered the “gold standard” due to their excellent sealing ability and dimensional stability, they possess inherent limitations such as cytotoxicity, hydrophobicity, and a lack of bioactive potential.

Bioceramic materials address these challenges through several defining characteristics:

1. Bioactivity and Osteoinduction

Unlike inert traditional sealers, bioceramics are bioactive, meaning they interact with living tissue to induce specific cellular responses. They release calcium and silicate ions, which promote the migration and viability of human dental pulp stem cells (hDPSCs) and support their differentiation into osteoblasts (bone-forming cells). This makes them “osteoinductive platforms” capable of supporting the repair of periapical bone and the remineralization of lesions.

2. Superior Physical and Chemical Properties

• Hydrophilicity: Bioceramic sealers are hydrophilic, allowing them to use the moisture inherently present in dentinal tubules to initiate their setting reaction.
• High Alkaline pH: Upon setting, these materials maintain a high pH (typically above 11), which provides sustained antibacterial effects against pathogens like Enterococcus faecalis.
• Chemical Bonding: They facilitate the formation of hydroxyapatite and a mineral-infiltrated layer, creating a chemical bond between the dentin and the filling material that enhances the overall seal.
• Dimensional Stability: They satisfy ISO standards for dimensional change, offering excellent stability that reduces the risk of microleakage over time.

3. Diverse Clinical Applications

In the endodontic space, bioceramics are categorized into two main forms:

• Sealing Materials: Often provided in premixed injectable forms these are used for root canal obturation, often utilizing the single-cone technique due to their high flowability and sealing capacity.
• Filling/Repair Materials: Cements like MTA (Mineral Trioxide Aggregate) and Biodentine are used for more complex procedures, including perforation repairs, pulp capping, and apexification of immature teeth.

4. Biocompatibility and Healing

Bioceramic sealers exhibit superior biocompatibility compared to traditional resin sealers. Research indicates that they are non-toxic to periapical tissues and can lead to faster clinical healing with fewer post-treatment complications. Even in cases of unintentional extrusion into the periapical region, their high biocompatibility minimizes inflammatory responses and supports the regenerative process.

BioRoot Flow (BRF) is a novel premixed bioceramic sealer indicated for endodontic treatments with no shrinkage and limited bacteria growth.

Whether using cold or warm obturation techniques, or more modern approaches such as hydraulic condensation or single
cone obturation, BioRoot Flow is designed to make permanent root canal fillings fast, simple, and successful.

The sealer’s pure, resin-free, calcium silicate mineral formulation flows easily into canals and provides strong adhesion to both dentin and gutta percha. Its biocompatibility reduces the risk of adverse reactions, while its bioactive properties induce hydroxyapatite crystal formation to aid in tooth remineralization.

Ref:

Clinical applications and perceptions of bioceramics in endodontics: a cross-sectional survey – MJS Publishing.
Biocompatibility and Bioactivity Evaluation of Novel Calcium Silicate-Based Sealer.
Osteoinductive and regenerative potential of premixed calcium- silicate bioceramic sealers on vascular wall mesenchymal stem cells – Unibo.
Physicochemical Properties and Biocompatibility of Various Bioceramic Root Canal Sealers: In Vitro Study.