What is a Removable Partial Denture (RPD)?

A Removable Partial Denture (RPD) is defined as a dental prosthesis specifically designed to replace missing teeth in patients who still have some natural teeth remaining. This is significant because RPDs serve to restore functionality and aesthetics for individuals who have lost some teeth but retain others, allowing them to maintain a more natural bite and smile. The RPD is constructed to be removed by the patient for cleaning and should fit snugly around the remaining natural teeth, which usually includes clasps or attachments that secure the prosthesis in place.

In contrast, a dental bridge that permanently attaches to existing teeth is not removable and serves a different purpose, focused on providing a fixed solution for tooth replacement rather than a removable option. A fixed prosthetic solution for complete tooth loss is relevant for instances where no natural teeth are available, which is outside the scope of what an RPD addresses. Lastly, a type of orthodontic appliance is primarily used for tooth realignment, which is unrelated to the functionality or purpose of an RPD. Thus, the characteristics of an RPD clearly align with the provided definition in the answer, emphasizing its role in helping patients with partial edentulism.