Affiliation: | 1. Department of Pediatric Dentistry and Institute of Transitional Dental Sciences, School of Dentistry, Pusan National University & Dental Research Institute of Pusan National University Dental Hospital, Yangsan, Republic of Korea;2. Department of Conservative Dentistry and Institute of Transitional Dental Sciences, School of Dentistry, Pusan National University & Dental Research Institute of Pusan National University Dental Hospital, Yangsan, Republic of Korea |