Affiliation: | 1. Department of Oral and Maxillofacial Prosthodontics, Institute of Health Biosciences, The University of Tokushima Graduate School, , Tokushima, Japan;2. Department of Oral Microbiology, Institute of Health Biosciences, The University of Tokushima Graduate School, , Tokushima, Japan;3. Department of Conservative Dentistry, Institute of Health Biosciences, The University of Tokushima Graduate School, , Tokushima, Japan |