Dental restorative material

Lining materials

• Lining materials protect the weak tooth from post-operative hypersensitivity, reducing patient discomfort and allowing the tooth to heal at a faster rate after the procedure.
• Some dental restorative materials, such as acrylic monomers in resin-based materials and phosphoric acid in silicate materials, may pose toxic and irritable effects to the pulp. Lining materials protect the tooth from such irritants.
• Lining materials serve as an insulating layer to the tooth pulp from sudden changes in temperature when the patient takes hot or cold food, protecting them from potential pain resulting from thermal conductivity.
• Lining materials are electrically insulating, preventing corrosion by galvanic cell where two dissimilar metals (e.g. gold or amalgam) are placed next to each other.