@article{oai:kanazawa-u.repo.nii.ac.jp:00008093, author = {Furumoto, Tatsuaki and Ueda, Takashi and Hosokawa, Akira and Tachiya, Hiroshi and 古本, 達明 and 上田, 隆司 and 青木, 慎太郎 and 葛西, 惇士 and 細川, 晃 and 立矢, 宏}, issue = {758}, journal = {Nihon Kikai Gakkai Ronbunshu, C Hen/Transactions of the Japan Society of Mechanical Engineers, Part C}, month = {Jan}, note = {In this paper, a measurement of the impulse stress induced by a laser irradiation on the extracted human enamel was proposed. The dynamic load induced in the specimen by using elastic wave propagation in the long bar made of aluminum alloy was measured. The human enamel was grinded with the grain of # 600, and fixed on the edge of the long bar. The titanium dioxide powder whose average diameter is 1 urn was applied to the enamel surface so as to absorb the irradiation laser beam effectively. The laser induced stress intensity was evaluated from the dynamic strain measured by small semiconductor strain gauges attached on the long bar. As a result, the impulse stress induced on the human enamel increased with increasing the laser energy, and related to the volume of the prepared cavity. The laser induced stress for the removal of the unit volume of human enamel was 0.03 Pa/mm3., 金沢大学理工研究域機械工学系}, pages = {2810--2815}, title = {長棒を用いたレーザ誘起衝撃応力の測定 : 歯質の窩洞形成時に生じる衝撃応力}, volume = {75}, year = {2009} }