Dental Materials, Restorative, Amalgam, Capsule
Definition : Amalgam restorative dental materials in capsule form designed to be used as metallic fillings for in situ restoration of the appearance, structure and/or function of a patient's teeth. These amalgam restorative dental materials consist of a mixture of liquid mercury and high compressive strength alloys whose main constituents are silver, tin, and copper; they do not contain zinc which therefore minimizes the risk of fracturing the restoration. The metal powder and mercury are contained in appropriate portions, but separated in the capsule. The user activates the capsule thereby mixing the contents. This results in a convenient and safer way to mix the constituent components. Amalgam restorative dental materials supplied as capsules ensure a long lasting restoration and their sufficient condensation enables an easy way of packing. They do not adhere to tooth structure without the aid of cements or techniques which lock in the filling; these amalgam restorative dental materials are strong, resistant to wear, malleable, durable and are usually placed on the rear molars since their metallic color is not an aesthetic match with natural tooth enamel. They are used in dentists' offices.
Entry Terms : "Restorative Dental Materials, Amalgam Capsule" , "Dental Amalgam, Capsule"
UMDC code : 16712