National Dental Assisting Examining Board (NDAEB) Practice Exam

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Prepare for the National Dental Assisting Exam with comprehensive quiz questions, including multiple choice and detailed explanations. Equip yourself for success!

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What is the expected consistency of a properly mixed luting cement?

It should flow freely
It should string 2cm from the paper pad
It should be a thick paste
It should be watery and thin

The correct answer is: It should string 2cm from the paper pad

The expected consistency of a properly mixed luting cement is characterized by its ability to string up to 2 cm from the paper pad. This specific consistency indicates that the cement has been mixed to the appropriate thickness, providing a balance between being too dry and too runny. A luting cement that strings from the pad demonstrates an optimal viscosity, which is important for ensuring proper adhesion during the dental procedure. If the cement flows freely, it might indicate that it’s too thin and may not provide the necessary retention for the dental restoration. On the other hand, a thick paste would be too viscous for a proper application, making it difficult to spread evenly and adhere to the surface of the tooth or restoration, thus compromising its effectiveness. A watery and thin consistency would not provide sufficient strength or stability needed for dental applications, leading to potential failure in the bonding process. Therefore, the correct consistency is critical for achieving the desired results in restorative dentistry.