a, b, c
Department of Preventive Dentistry and Public Health, School of Dental Medicine, Tsurumi
University,Japan, Department of Oral Health, National Institute of Public Health,
Japan, Department of Operative Dentistry, School of Dentistry, Aichi Gakuin University,Japan.
,
Yoshiaki Nomura
a, b
Department of Preventive Dentistry and Public Health, School of Dental Medicine, Tsurumi
University,Japan, Department of Oral Health, National Institute of Public Health,
Japan
,
Susumu Imai
b
Department of Oral Health, National Institute of Public Health, Japan.
,
Akira Senda
c
Department of Operative Dentistry, School of Dentistry, Aichi Gakuin University,Japan.
,
Nobuhiro Hanada
b
Department of Oral Health, National Institute of Public Health, Japan.