1. Department of Oral Biochemistry, Institute of Oral Bioscience, School of Dentistry, Chonbuk National University, Jeonju, Korea
2. Department of Conservative Dentistry, Institute of Oral Bioscience, School of Dentistry, Chonbuk National University, Jeonju, Korea
3. Department of Oral Pathology, Institute of Oral Bioscience, School of Dentistry, Chonbuk National University, Jeonju, Korea
4. Department of Preventive Dentistry, Institute of Oral Bioscience, School of Dentistry, Chonbuk National University, Jeonju, Korea