| Budget Amount *help |
¥4,030,000 (Direct Cost: ¥3,100,000、Indirect Cost: ¥930,000)
Fiscal Year 2015: ¥1,040,000 (Direct Cost: ¥800,000、Indirect Cost: ¥240,000)
Fiscal Year 2014: ¥1,690,000 (Direct Cost: ¥1,300,000、Indirect Cost: ¥390,000)
Fiscal Year 2013: ¥1,300,000 (Direct Cost: ¥1,000,000、Indirect Cost: ¥300,000)
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| Outline of Final Research Achievements |
PALATE RESIN SOF(PRS, GC) is a heat-polymerized soft acrylic resin for denture bases and lining materials. PRS, Acron (PMMA, GC) and GC RELINE Soft (Silicone, GC) were prepared as test plates by the manufacturers’ instructions. For bending strength test, two types of PRS, hard type and soft type were used, and for the other tests, moderate type of PRS were used. Bending strength, surface roughness and water contact angle of the test plates were measured by three-point bending, with non-contact measurement and water drop method respectively. The latter two values were measured before and after salivary treatment, in which test plates were coated with human stimulated saliva. These results indicate that PRS was more elastic than PMMA and silicone, depending on the powder/liquid ratio, while the surface roughness and contact angle of PRS had a similar behavior to PMMA by saliva treatment.
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