M FUKUCHI, H TAKANO, S SUZUKI, S SHIMODA, K SUZUKI, H IGARASHI, M YAMAZAKI, M FUKUDA (Division of Dentistry and Oral surgery, Akita University School of Medicine)

Y SEKITO¹, H MORI¹, Y TANAKA¹, T IKEDA^1,2 (1.Kanto-Koshinetsu Branch, 2.Clinical implant society of Japan)

M SADAMURA¹, T TOMOYOSE², K FUNAKI³, K TAKESITA^3,4, T TAKAHASI⁵ (1.IIRD, 2.Kyushu Branch, 3.Kanto-Koshinetsu Branch, 4.Division of Oral and Maxillofacial Surgery Tohoku University Graduate School of Dentistry, 5.Division of Oral and Maxillofacial Surgery Tohoku University Graduate School of Dentistry)

A HIKIMA, S KURIYAMA, N OKUMORI, T YONEYAMA, I OHASHI, E KATAOKA, A TAKESHIMA, T YANASE (Japan Institute for Advanced Dentistry)

A KOJIMA^1,2, J SATO^1,2, M KATO^1,2, J KAWAHARA^1,2 (1.Kanto-Koshinetsu Branch, 2.Yokohama Research Institute for Oral implamtology)