The Nesbit RPD
The flexible framework RPD can replace any number of teeth in a dental arch, similar to the flipper and cast metal RPD. There is, however, one type of removable tooth replacement device that can (legally) be built ONLY out of the flexible framework variety of material. This is the single tooth RPD that we refer to as a NESBIT.
Dentists used to build Nesbits for their patients all the time. They were composed of a single denture tooth (usually a back tooth) between two cast metal clasps which attached onto the teeth on either side of the missing one. They looked a little like spiders when out of the mouth. Patients tended to like them, but they came to an abrupt end in the 1970’s. Prior to that time, in the rare event that a patient swallowed his appliance, he either waited for it to pass, or sought medical help on his own assuming that the accident was his own fault. In rare instances, the metal clasps were sharp enough to cause damage to the digestive system. After that time, tort lawyers discovered that it was a law suit made in Heaven, (or Hell depending on your point of view) and it didn’t take the dental profession long to abandon this service.
The design of the new flexible plastic framework takes the danger out of an accidental swallowing of the appliance. In the event that someone did swallow one, it is unlikely that any damage could be done to the lining of the digestive system. This is a series of pictures that show the form and function of a Valplast Nesbit.
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