OFFICIAL JOURNAL OF THE JAPANESE ASSOCIATION FOR ORAL BIOLOGY Editor-in-Chief: Vice Editor-in-Chief: Norio Amizuka (Sapporo, Japan) Hayato Ohshima (Niigata, Japan) Associate Editors: Osamu Amano (Sakado, Japan) Naoya Ohara (Okayama, Japan) Kazuyuki Ishihara (Chiba, Japan) Kentaro Ono (Kitakyushu, Japan) Naozumi Ishimaru (Tokushima, Japan) Yoshinori Sahara (Iwate, Japan) Akira Ishisaki (Morioka, Japan) Yasuyuki Sasano (Sendai, Japan) Satoshi Kubota (Okayama, Japan) Masamichi Takami (Tokyo, Japan) Kenji Mishima (Tokyo, Japan) Editorial Board: Roland Baron (Boston, MA, USA) Marc D. McKee (Montreal, Canada) Stuart Dashper (Parkville, Australia) Byung-Moo Min (Seoul, Republic of Korea) Jeffrey L. Ebersole (Lexington, KY, USA) Antonio Nanci (Montreal, Canada) Paul C. Edwards (Indianapolis, IN, USA) Takayuki Nemoto (Nagasaki, Japan) Hansel M. Fletcher (Loma Linda, CA, USA) Akira Nifuji (Yokohama, Japan) Satoshi Fukumoto (Sendai, Japan) Neil S. Norton (Omaha, NE, USA) George Hajishengallis (Philadelphia, PA, USA) Paul R. Odgren (Worcester, MA, USA) Hidemitsu Harada (Morioka, Japan) Bjorn R. Olsen (Boston, MA, USA) Kristiina Heikinheimo (Turku, Finland) Lakshman Samaranayake (Sharjah, UAE) Willy Hofstetter (Bern, Switzerland) Yoshihiko Sawa (Okayama, Japan) Kiyotoshi Inenaga (Kitakyushu, Japan) Barry J. Sessle (Toronto, Canada) Takashi Inoue (Chiba, Japan) Paul T. Sharpe (London, UK) Tomio Inoue (Tokyo, Japan) Ken-ichiro Shibata (Sapporo, Japan) Sebastian Joyce (Nashville, TN, USA) Shunichi Shibata (Tokyo, Japan) Han-Sung Jung (Seoul, Republic of Korea) Charles Shuler (Vancouver, Canada) Yosuke Kaifu (Tsukuba, Japan) Nobuhiro Takahashi (Sendai, Japan) Eun-Cheol Kim (Seoul, Republic of Korea) Kohsuke Takeda (Nagasaki, Japan) Hee-Jin Kim (Seoul, Republic of Korea) Masato Tamura (Sapporo, Japan) Tamotsu Kiyoshima (Fukuoka, Japan) Irma Thesleff (Helsinki, Finland) Hitoshi Komatsuzawa (Kagoshima, Japan) Grant Townsend (Adelaide, Australia) Toshihisa Komori (Nagasaki, Japan) Philip C. Trackman (Boston, MA, USA) Shintaro Kondo (Matsudo, Japan) Takashi Tsuji (Kobe, Japan) Sittichai Koontongkaew (Pathumtani, Thailand) Nobuyuki Udagawa (Shiojiri, Japan) Kayo Kuyama (Matsudo, Japan) Kensuke Yamamura (Niigata, Japan) Wen-Sen Lee (Taipei, Taiwan) Takashi Yamashiro (Suita, Japan) Janina P. Lewis (Virginia, VA, USA) Mitsuo Yamauchi (Chapel Hill, NC, USA) Advisory Board: Osamu Suzuki (Editor-in-Chief, Dental Materials Journal; Sendai, Japan).