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Kaichi Watanabe
Depart. of Prosthetic Dentistry, Nippon Dental College
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Hiroaki Ohtake
Depart. of Prosthetic Dentistry, Nippon Dental College
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Yoshiaki Hata
Depart. of Prosthetic Dentistry, Nippon Dental College
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Yukio Kimura
Depart. of Prosthetic Dentistry, Nippon Dental College
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Kazuo Matsubara
Depart. of Prosthetic Dentistry, Nippon Dental College