Removable Partial Dentures come in various forms, being metal, acrylic or valplast
Acrylic Partial Denture
This form of removable partial denture is the least expensive of all the removable partial dentures they are also known as transitional dentures since they are a more temporary fix to your solution. Acrylic dentures are most retained with wire clasps as seen.
The disadvantages to this type of denture are frequent repairs and relines. Natural dentition in combination with acrylic causes the denture to be very brittle. Despite this fact, with proper care, many clients continue to wear the appliance for many years. They are considered to be aesthetically pleasing.
Cast Partial Denture
Removable Partial Dentures with cast metal framework offers numerous advantages over the treatment partial described above. The cast framework is designed to be seated on the teeth as well as being attached to them; they are extremely stable and retentive. At times, teeth have to be altered slightly beforehand in order that the partial denture can rest upon them without interfering with the way the patient bites the teeth together. The framework is casted from an extremely strong alloy called chrome cobalt which can be cast very thin and are much less likely to break.
The Flexible Partial Denture
This form of partial denture is designed for those who either have an allergy to metal or those who want more natural look without the metal appearance. However this type of denture is also very flexible which makes it nearly unbreakable. It is designed to mimic the color of your gums which makes them unrecognizable. This type of partial denture is extremely stable and retentive, and the elasticity of the flexible plastic clasps keeps them that way indefinitely.