| Budget Amount *help |
¥3,900,000 (Direct Cost: ¥3,000,000、Indirect Cost: ¥900,000)
Fiscal Year 2017: ¥1,300,000 (Direct Cost: ¥1,000,000、Indirect Cost: ¥300,000)
Fiscal Year 2016: ¥2,600,000 (Direct Cost: ¥2,000,000、Indirect Cost: ¥600,000)
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| Outline of Final Research Achievements |
It prepared trial self-adhesive flowable composite resins (trial resin), and compared trial resin with glassionomer cements by the adhesive strength test to human enamel and dentin. For adhesive strength test, some specimens were left in humidity 99% air at 37℃ for 24 hours, and the others underwent 50 thermal cycles of repetitive immersion in distilled water 4℃ and 60℃ for one minute. The mean adhesive strength test to enamel, trial resin was 4.4±2.5MPa（mean±SD), FX ultra was 3.0±1.7MPa, Fuji IX GP extra was 3.9±2.0MPa, after thermal cycles, trial resin was 5.3±3.7MPa, FX ultra was 3.1±1.5MPa, Fuji IX GP extra was 3.8±2.0MPa. The mean adhesive strength test to dentin of trial resin was 5.3±2.7MPa, FX ultra was 2.5±1.4MPa, Fuji IX GP extra was 3.2±1.7MPa, after thermal cycles of all specimens was very low (2.4MPa or low). It is suggested that the adhesive strength of trial resins prepared was sufficient for clinical application as a glassionomer cements．
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