Affiliation: | 1. Department of Periodontology, Division of Oral Rehabilitation, Faculty of Dental Science, Kyushu University, Fukuoka, Japan;2. Dental and Oral Medical Centre, Kurume University School of Medicine, Fukuoka, Japan;3. Department of Endodontology and Operative Dentistry, Division of Oral Rehabilitation, Faculty of Dental Science, Kyushu University, Fukuoka, Japan |