[1
]
Clinical Research Assistant Professor, Department of Prosthodontics, College of Dentistry,
Yonsei University, Seoul, Republic of Korea.
[2
]
Graduate student, Department of Prosthodontics, College of Dentistry, Yonsei University,
Seoul, Republic of Korea.
[3
]
Clinical Assistant Professor, Department of Conservative Dentistry, College of Dentistry,
Yonsei University, Seoul, Republic of Korea.
[4
]
Professor, Department of Prosthodontics, College of Dentistry, Yonsei University,
Seoul, Republic of Korea. Electronic address: jfshim@yuhs.ac.