When Assisting with the Final Impression in a Crown and Bridge

question 24

Multiple Choice

When assisting with the final impression in a crown and bridge preparation,the operator may "blow" around the light-bodied impression material before inserting the heavy-bodied material.The purpose of this procedure is to:

• A)dry the area off.
• B)make it easier for the operator to see the margins of the preparation.
• C)make it easier to set the impression tray.
• D)thin out the material to allow it to flow better within the sulcus and around the margins.

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