Hiromi Kominato and Kohei Takeda contributed equally to this study.;2. Department of Periodontology, Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University (TMDU), Bunkyo-ku, Tokyo, Japan;3. Oral Diagnosis and General Dentistry, Dental Hospital, Tokyo Medical and Dental University, Bunkyo-ku, Tokyo, Japan;4. Department of Conservative Dentistry and Prosthodontics, Faculty of Dentistry, Srinakharinwirot University, Bangkok, Thailand;5. Division of Advanced Clinical Education, Department of Integrated Dental Education, School of Dentistry, Health Sciences University of Hokkaido, Ishikari-gun, Hokkaido, Japan