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What can be defined as a removable dental appliance?

  1. Crown

  2. Bridge

  3. Denture

  4. Veneer

The correct answer is: Denture

A removable dental appliance is designed to be taken out of the mouth and reinserted as needed. Dentures are prosthetic devices that replace missing teeth and can be removed by the patient for cleaning, comfort, or during sleep. They come in complete forms, replacing all teeth in an arch, or partial forms, which fill in gaps left by missing teeth. Crown, bridge, and veneer are fixed dental appliances. A crown encases a single tooth, a bridge is used to replace one or more missing teeth and requires anchoring to adjacent teeth, and a veneer is a thin layer placed over a tooth to improve aesthetics. None of these can be removed by the patient at will, distinguishing them from dentures. This characteristic is why dentures are the correct answer in identifying a removable dental appliance.