Cavity liners are dental materials used in restorative dentistry to line the prepared cavity before placing a dental restoration. These materials are applied to the tooth cavity to provide a protective layer between the tooth structure and the restorative material, such as amalgam or composite resin. The primary purpose of cavity liners is to protect the dental pulp and promote the overall health of the tooth. There are various types of cavity liners, each with specific properties and indications. Here are some common types:
Calcium Hydroxide Liners:
Purpose: Calcium hydroxide liners are often used to stimulate dentin repair and formation of secondary dentin.
Indications: They are suitable for deep cavities, providing a protective barrier against bacterial invasion.
Glass Ionomer Liners:
Purpose: Glass ionomer liners release fluoride, which can aid in remineralization and offer some degree of chemical bonding to tooth structure.
Indications: They are used in restorations involving the cervical areas of the tooth and for patients with a high risk of developing caries.
Resin-Modified Glass Ionomer Liners:
Purpose: Similar to conventional glass ionomer liners but with improved physical properties due to the addition of resin. They bond chemically to tooth structure.
Indications: Used in restorations where increased strength and adhesion are desirable.
Polymer-Based Liners:
Purpose: These liners are resin-based and may contain various components, such as fluoride and calcium hydroxide. They provide a seal against bacterial invasion.
Indications: Used in deep cavities to provide a protective barrier and enhance the longevity of restorations.
Zinc Oxide Eugenol (ZOE) Liners:
Purpose: ZOE liners have mild sedative properties and provide a protective barrier against thermal irritation.
Indications: Used in situations where a soothing effect on the pulp is desired, such as deep restorations or when placing temporary fillings.
Adhesive Bonding Agents:
Purpose: Adhesive bonding agents can act as cavity liners, promoting a strong bond between the tooth structure and composite restorative materials.
Indications: Used when placing adhesive-based composite restorations to enhance the bond strength and reduce microleakage.
Reviews
There are no reviews yet.