Author,Title,Journal,ISSN,Publisher,Date,Volume,Number,Page,URL,URL(DOI) HATA YOSHIAKI and ODACHI HIKARI and SASAKI HACHIRO and MATSUDA KOICHI and NAKAYA TOSHIO,The Wear and Fracture Mechanism of Ultrasonic File,Journal of Japan Endodontic Association,0389-5238,Japan Endodontic Association,1990,11,1,23-38,https://cir.nii.ac.jp/crid/1390283659853737600,https://doi.org/10.20817/jjea.11.1_23