What is the primary purpose of a matrix band during a Class II amalgam or composite restoration?
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Correct answer: To create proper contour and contact
A matrix band forms the missing wall of the tooth and helps shape the final contour. It allows proper contact points to be restored.
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More Basic Operative Procedures: Amalgam and Composite questions
- Which instrument is used to condense amalgam into the prepared cavity?
- Which step is required before placing composite material?
- Which material is used to protect the pulp during deep cavity preparations?
- What is the primary advantage of composite over amalgam?
- Which instrument is used to shape and smooth composite before curing?
- What occurs if composite is placed in increments that are too thick?