@article{oai:mdu.repo.nii.ac.jp:00001059, author = {崔, 峻宇 and 鈴木, 和夫 and 鷹股, 哲也 and 福与, 碩夫}, issue = {2}, journal = {松本歯学}, month = {Aug}, note = {application/pdf, In-vitro testing methods using cell culture have become common in the evalution of the biologic effects of dental material. One of these tests is described in this paper. It is an in-vitro test using culture to determine the general cytotoxic effect of the urethane shape memory polymer. The Agar Overlay Test (AOT) was used for the cytotoxicity screening of the urethane shape memory polymer and heat-polymerized denture base polymers. A 24-hour culture of human Hela cells was used in this test. Finings of C.C.P. and Asb were used as controls in comparing interpreting the results. In conclusion about 20% of the cells were disintegrated by the heat-polymerized denture base polymer in the decolorized area. However, the urethane shape memory polymer produced no discoloration in areas surrounding or directry underneath it. There were also no disintegrated cells in these areas. When evaluated, these tests showed that the heat-polymerized denture base polymer has some effect on the culture cells. However the urethane shape memory polymer is valuable for dental materials.}, pages = {182--188}, title = {ウレタン系形状記憶ポリマーの生体親和性について 第1報 寒天重層法による毒性試験}, volume = {17}, year = {1991} }