@article{oai:shinshu.repo.nii.ac.jp:00040498,
 author = {日高, 敏郎 and 河瀨, 雄治 and 竹内, 賢 and 永澤, 栄 and 伊藤, 充雄 and HIDAKA, TOSHIRO and KAWASE, YUJI and TAKEUCHI, KEN and NAGASAWA, SAKAE and ITO, MICHIO},
 issue = {2},
 journal = {松本歯学, Journal of the Matsumoto Dental University Society},
 month = {Dec},
 note = {The objective of this study was to verify the stability of Y2O3 partially stabilized zirconia (zirconia) sintered at 1,350℃ and 1,450℃ in a simulated oral environment over a long period of time. After sintering, zirconia was immersed in physiological saline, 1% lactic acid solution, and 1% malic acid solution which can be produced in the oral cavity for 3 or 6 months. The bending strength and strain were measured. The following results were obtained. Before immersion, there was no difference in the bending strength of zirconia sintered at 1,350℃ and 1,450℃. For zirconia sintered at 1,350℃, there was no difference among solutions in the bending strength after exposure. However, for zirconia sintered at 1,450℃, the bending strength and strain were lower after exposure to 1% lactic acid solution for 3 months. There was no effect on the strain after exposure to any solutions for zirconia sintered at 1,350℃. For zirconia sintered at 1,350℃, fracture was not observed during exposure to any of the solutions. However, when sintered at 1,450℃, zirconia was fractured during exposure to 1% lactic acid solution and 1% malic acid solution for 6 months. It was clarified that zirconia sintered at 1,350℃ was more suitable than that sintered at 1,450℃ as an implant material., application/pdf},
 pages = {122--129},
 title = {イットリア部分安定化ジルコニアの焼成温度と曲げ強さの関係},
 volume = {41},
 year = {2015}
}