Which tool would you use to remove soft decay from a tooth?

The spoon excavator is specifically designed for the removal of soft decay from a tooth. Its spoon-shaped end allows for precise and effective excavation of decayed material without damaging the healthy tooth structure surrounding it. The curved design helps the dental professional access areas of the tooth where decay may be present, making it an essential tool in restorative dentistry procedures.

Other tools mentioned, such as a dappen dish, are used to hold materials like dental impression materials or other liquids but are not involved in decay removal. Similarly, a mandrel disc is used for polishing or finishing restorations and would not be used for removing decay. A rubber dam serves to isolate the area being treated to keep it dry, ensuring a clearer working space, but it does not remove decay itself. This makes the spoon excavator the appropriate choice for the task of removing soft decay.