INBDE (Integrated National Board Dental Examination) Practice Exam

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All of the following statements about slot-retained complex amalgams are true except?

Slots should be 1.5mm in depth
Slots should be 1mm or more in length
Slots should be segmented or continuous
Slots should be placed at least 0.5mm inside DEJ

The correct answer is: Slots should be 1.5mm in depth

Slot-retained complex amalgams are a type of filling that is used to restore tooth damage caused by decay. The goal of this type of filling is to create a strong bond between the restoration and the tooth by using slots. These slots should be at least 1mm or more in length in order to allow for a proper hold. Additionally, the slots should be segmented or continuous, as this allows for better structural integrity and retention of the filling. Slots should also be placed at least 0.5mm inside the DEJ, which is the junction where the enamel and dentin meet. However, it is not necessary for the slots to be exactly 1.5mm in depth, making this statement incorrect. The depth of the slot can vary depending on the specific case and the dentist's preference. Therefore, the correct answer is A.