When punching holes in a rubber dam for a Class V buccal amalgam preparation, how should the holes be positioned?

When punching holes in a rubber dam for a Class V buccal amalgam preparation, the correct positioning of the holes is essential for effective isolation and accessibility. Positioning the holes slightly to the buccal of the adjacent teeth ensures that the dam provides adequate retraction and visibility of the operative site. The Class V preparation typically occurs on the buccal surface and requires a clear view for proper adaptation of the dental material and for the dentist's work.

By positioning the holes buccally, the rubber dam can better accommodate the size and contour of the teeth, minimizing potential interference from neighboring teeth. This positioning also allows the assistant to monitor the procedure more effectively and aids in maintaining a dry field, which is crucial for the success of an amalgam restoration.

Other options like positioning the holes lingually or using larger or smaller hole punches do not provide the same level of access or effective isolation. Proper hole positioning is vital for a smooth workflow in dental procedures, particularly ones as precise as Class V restorations.