Resin-Modified Calcium Silicate Pulp Protectant/Liner
TheraCal LC is a light-cured, resin-modified calcium silicate filled liner designed for use in direct and indirect pulp capping and as a protective liner under composites, amalgams, cements, and other base materials. It can be used as an alternative to calcium hydroxide, glass ionomer, RMGI, IRM/ZOE and other restorative materials. TheraCal LC performs as a barrier and protectant of the dental pulpal complex.
TheraCal LC’s precise placement allows its use in all deep cavity preparations. The light-cured set permits immediate placement and condensation of the restorative material. Its proprietary formulation allows for a command set with a light curing unit while maintaining ease of placement due to thixotropic properties. The proprietary hydrophilic resin formulation creates a stable and durable liner.
Unique Benefits:
Clinical Significance:
The proprietary formulation of TheraCal LC consists of tri-calcium silicate particles in a hydrophilic monomer that provides significant calcium release making it a uniquely stable and durable material as a liner or base.
TheraCal LC is a resin-modified calcium tri-silicate that has enhanced physical properties when compared to MTA material. Essentially, the primary chemical used in both materials are similar (Portland cement) but TheraCal LC contains a patent pending hydrophilic resin, which allows for immediate light curing and facilitates calcium release. Similar to MTA material, TheraCal LC promotes healing due to the alkaline pH, and the calcium release assists in the formation of dentin bridge.
Calcium hydroxide is the primary chemical contained in many dentin liners and pulp capping agents. One of the known limitations of calcium hydroxide-based materials is their relatively high solubility, which leads to dissolution of the material over time.
Bonding is not required or recommended before placement of TheraCal LC on dentin. TheraCal LC allows the maximum amount of calcium release.
TheraCal LC promotes hydroxyl-apatite formation through ion/water exchange with the tooth structure. Resin-modified glass ionomers are unable to promote hydroxyl-apatite formation and have been shown to be cytotoxic to the pulpal complex. Due to the inclusion of polyacrylic acid, RMGI’s may actually inhibit apatite formation.
TheraCal LC can be used as a liner under all restorative materials. It can also be used as a direct or indirect pulp-capping agent.
No, TheraCal LC is virtually insoluble when compared to other traditional calcium hydroxide-based liners and pulp-capping agents.
Yes. TheraCal LC is indicated for both direct and indirect pulp capping, and can be used safely with pediatric patients. TheraCal LC will provide pulpal protection and decrease the risk of post-operative sensitivity in cases where deep preparations are needed, or where carious or mechanical exposures occur. The ability to light-cure the material will allow for faster working time as well, which may be helpful when dealing with younger patients.
BISCO has developed a unique hydrophilic matrix that allows for ion exchange. Previous or traditional resin matrices have been hydrophobic, but BISCO’s matrix allows for ion exchange as water flows into the matrix, reacts, and calcium hydroxide ions are released. The matrix is hydrophilic but will not dissolve over time.
TheraCal LC is a light-cured, resin-modified calcium silicate. Its unique apatite stimulating ability makes it ideal for direct and indirect pulp capping and as a protective liner.
1 Syringe TheraCal LC (1g), Accessories, Instructions
