| Popis: |
Since 1930, partial denture frameworks have been made from metallic alloys like cobalt-chromium [Co-Cr] and resin polymers such as Polymethylmethacrylate [PMMA]. However, the main limitation of these materials over the last 15 years has been related to aesthetics. The show of a metallic clasp has not been widely accepted. The objectives of this study are:- 1) To find a material for removable partial dentures that has aesthetic clasps and 2) To compare the strength and functionality of the aesthetic clasps with Cobalt - chromium or other metallic clasps. Being a review paper, the methodology involved referring to related articles. Removable dentures made with PEEK, Valplast, Zirconia framework and transparent dentures were compared. The aim of this study was to find an aesthetic solution to the metallic show of the removable partial dentures. PEEK and Zirconia framework dentures give aesthetics along with a sound framework whereas Valplast and transparent flexible dentures are high on the aesthetic quotient but are functionally less stable. Cast partial dentures are stronger but aesthetically compromised. With newer technologies like PEEK, Zirconia in distal extension and Valplast and transparent dentures in tooth-bound cases, an amalgamation of aesthetics, stability and functionality was found. |
