The engager is made up of dental composite material, so a good general guideline for removing engagers, would be to use the same methods that you would use to remove composite from the tooth.
Here are five different methods for removing engagers:
Checking if all the composite has been removed
A common technique is to drag a metal tipped instrument such as a scaler or an explorer over the tooth. Composite resin will be revealed as the material picks up marks from the metal instrument. This is a good practice not only for ensuring all the composite material is removed but also to prevent enamel damage, particularly when using diamond burs.
Alternatively, a lead pencil may be used to mark the composite. This technique works beautifully to better visualize small composite fragments left on the tooth.
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