Nomura, Ryota
Kokomoto, Kazuma
Ohara, Takahiro
Nakatani, Satoshi
Ooshima, Takashi
Nakano, Kazuhiko
Article History
Received: 29 May 2017
Accepted: 27 December 2017
First Online: 12 February 2018
Compliance with ethical standards
:
: The authors declare that they have no conflict of interest.
: The study protocol was approved by the Ethics Committee of Osaka University Graduate School of Dentistry (Approval No.: H28-E23).