Dental Board – General Chairside Practice Exam

The correct statement is that two wedges and anatomical carvers would be used during an amalgam procedure on a 4MOD restoration.

In a 4MOD restoration, which involves four surfaces (mesial, distal, occlusal, and one additional surface such as buccal or lingual), it is essential to create a strong and well-contoured restoration to restore the tooth's function and anatomy. The use of two wedges is important as they help to provide proper separation of the teeth, ensuring that the matrix band properly contours to the adjacent tooth structure and also helps in preventing a gap from forming, which could lead to inadequate restoration and potential issues like decay.

Anatomical carvers are selected to allow the dentist to contour the amalgam restoration accurately, mimicking the natural anatomy of the tooth. This is particularly crucial in multi-surface restorations where achieving the correct contours is necessary for occlusion and overall dental function.

Regarding the other selections, a single wedge might not provide adequate separation for a four-surface restoration, and the use of only smooth surface carvers would not sufficiently replicate the natural anatomy. Additionally, a matrix band and retainer are necessary for shaping the amalgam restoration, as they provide the margin and support needed to