Final answer:
To clean Mr. Smith's dentures, start by filling a sink or basin with warm water and placing a towel in the bottom. Remove the dentures from his mouth and rinse them under running water. Gently brush the dentures with a denture cleaner or toothpaste, rinse thoroughly, and soak overnight.
Step-by-step explanation:
To start cleaning Mr. Smith's dentures, you should first fill a sink or basin with warm water and place a towel in the bottom to prevent the dentures from breaking if they are accidentally dropped. Then, remove the dentures from Mr. Smith's mouth and rinse them under running water to remove any food particles. Use a denture brush or toothbrush and a mild denture cleaner or toothpaste to gently brush the dentures, making sure to clean all surfaces and remove any stains or buildup. After brushing, rinse the dentures thoroughly and place them in a denture cup filled with denture cleaning solution or plain water to soak overnight. Finally, rinse the dentures again before putting them back in Mr. Smith's mouth in the morning.