Dentures may break if you drop them. Always clean your dentures over a bowl of water or a folded towel in case you drop them.
To clean your denture, the general rule is: brush, soak, brush. Brush your dentures before soaking, to help remove any bits of food. Using an effervescent (fizzy) denture cleaner will help remove stubborn stains and leave your denture feeling fresher - always follow the manufacturer's instructions. Then brush the dentures again, as you would your own teeth, being careful not to scrub too hard as this may cause grooves in the surface.
Most dentists advise using toothpaste and a small- to medium-headed toothbrush. Make sure you clean all the surfaces of the dentures, including the surface which touches your gums. This is especially important if you use any kind of denture fixative.
If you notice a build up of stains or scale, have your denture cleaned by your dentist or hygienist.