What are liners and bases in dentistry?

What are liners and bases in dentistry?

Bases and liners are ‘sandwiched’ between the cavity preparation and the restorative material of the operator’s choice; they may be referred to as intermediary materials. Although the function of a base and a liner is pulpal protection, the way this is achieved varies depending on the properties of the materials.

Can a dental liner be used as a base?

Versatile protection for every restoration — RMGI liner/bases can be used under both direct and indirect restorations, and offer excellent performance under composite, amalgam, ceramic, and metal, which is why the material lends itself well to nearly every procedure in our practice.

What are bases used for in dentistry?

Bases can be considered as restorative substitutes for the dentin that was removed by caries and/or the cavity preparation. They act as a barrier against chemical irritation, provide thermal insulation, and can resist the condensation forces on a tooth when placing a restoration.

What is lining material in dentistry?

Lining materials. Dental lining materials are used during restorations of large cavities, and are placed between the remaining tooth structure and the restoration material. The purpose of this is to protect the dentinal tubules and the sensitive pulp, forming a barrier-like structure.

What is the difference between base and liner?

Liners do not have the sufficient thickness, hardness, or strength to be used alone in a deep cavity, nor should they be used to achieve thermal protection or as a buildup material in a cavity preparation. In comparison, a base not only provides a barrier to chemical irritation, but can also provide thermal insulation.

What would you use as an insulating base under a composite restoration?

ZOE: Zinc Oxide Eugenol is used as an insulating base and a reinforcer. The Eugenol in the liquid has a soothing effect on a painful, irritated pulp. When can you use ZOE (Zinc Oxide Eugenol)? You can use it as a base under amalgam restorations or as a temporary restoration.

What’s the difference between a dental base and a dental liner?

Dental liners, bases and cavity varnishes are used for this purpose. A dental liner is a material that is usually placed in a thin layer over exposed dentine within a cavity preparation. A dental base is a material that is placed on the floor of the cavity preparation in a relatively thick layer.

What are liners used for in dental restoration?

LINERS: relatively thin layers of material used primarily to provide a barrier to protect the dentin from residual reactants diffusing out of the restoration or from the oral fluids that may penetrate the tooth/restoration interface. They provide electrical insulation, some thermal protection.

Why are cavity liners and bases used for root canal treatment?

They act as a barrier between the restorative material or pulpal irritants and the Vital Pulp. Cavity Liners and Bases are used to prevent damage to the pulp which might result in irreversible pulpitis and might require Root Canal Treatment. What are the Various Pulpal Irritants:

Which is the most commonly used cavity liner?

Commonly used agents clinically are – Dycal and Life which is available in two paste system containing CaOH and Accelerator. The Cavty liner helps in providing thermal and physical insulating properties from the restorative material on the surface of the tooth.