Which instrument is used specifically to adjust high spots on dental restorations?

The cleoid/discoid instrument is specifically designed for adjusting high spots on dental restorations, particularly in the context of amalgam restorations. This hand instrument features a sharp, pointed cleoid end and a rounded discoid end. The pointed end is effective at scraping and carving away excess material, allowing for precise adjustments to achieve the desired contour and occlusion in the restorative material. This capability is essential in ensuring a proper bite and harmony in a patient's dental occlusion after a restoration is placed.

The other instruments serve different purposes. For example, the amalgam carrier is utilized for transporting and placing amalgam into the cavity preparation but does not have the functionality for adjustment. The amalgam condenser aids in compacting the amalgam material into the cavity but is not meant for making adjustments to high spots. The football diamond bur, while useful for shaping and finishing, is an attachment used with a dental handpiece and is not a hand instrument like the cleoid/discoid, thus lacking the specificity for manual adjustments in high spots on restorations.