@article{oai:mdu.repo.nii.ac.jp:00000598,
 author = {張, 志勇 and 楊, 冬茹 and 師, 偉策 and 吉田, 貴光 and 寺島, 伸佳 and 矢ケ﨑, 裕 and 永澤, 栄 and 伊藤, 充雄},
 issue = {1},
 journal = {松本歯学},
 month = {Apr},
 note = {application/pdf, Possible changes in material's characteristics of six types of commercially available composite resins have been investigated in an intraoral enviroment. After samples were subjected to the thermocycling treatment for 1000, 3000 and 10,000 cycles between 4℃ and 60℃, the bend strength and fracture strain were measured. At the same time, same mechanical properties of tested samples were evaluated after they were immersed in 37℃ distilled water for equivalent time to the above mentioned thermocylcing duration. Fractographic observations were also conducted on fractured surface of bend strength tests. Main conclusions are as follows; 1. Thermocycled samples showed lower values of bend strength and fracture strain, as compared to control samples. 2. Bend strengths of sample groups SD and UN which were immersed in 37℃ distilled water exhibited higher values than those of control group. Other sample groups showed an increase or decrease in bend strengths. 3. Strain amount of sample group CF which was immersed into distilled water increased. Other sample groups exhibited either an increase or decrease. 4. It was clearly observed that mechanical properties of composite resins are influenced by the intraoral temperature. 5. Among tested sample groups, it was found that SD sample group was the least sensitive to thermal effect in its mechanical characteristics; while CF sample group exhibited the most sensitivity to external thermal effects.},
 pages = {32--43},
 title = {コンポジットレジンの曲げ強さにおけるサーマルサイクルの影響},
 volume = {29},
 year = {2003}
}