Edama, M. http://orcid.org/0000-0002-2784-6466
Takabayashi, T.
Inai, T.
Hirabayashi, R.
Ikezu, M.
Kaneko, F.
Matsuzawa, K.
Kageyama, I.
Article History
Received: 21 September 2019
Accepted: 17 October 2019
First Online: 1 November 2019
Compliance with ethical standards
:
: The authors declare that they have no conflict of interest.
: The methods were carried out in accordance with the 1964 Declaration of Helsinki, and the cadavers were legally donated for the research by the Nippon Dental University of Life Dentistry at Niigata in Japan.
: Informed consent was obtained from the families of the donated cadavers.