[1] Seoul Natl Univ Dent Hosp, Dept Oral Med, 101 Daehak Ro, Seoul 03080, South Korea
[2] Catholic Univ Daegu, Sch Med, Dept Dent & Oral Med, 33,Duryugongwon Ro 17 Gil, Daegu 42472, South Korea
[3] Seoul Natl Univ, Dept Oral Med, Gwanak Dent Hosp, 1 Gwanak Ro, Seoul 08826, South Korea
[4] Seoul Natl Univ, Sch Dent, Dept Oral Med & Oral Diag, 101 Daehak Ro, Seoul 03080, South Korea
[5] Seoul Natl Univ, Dent Res Inst, 101 Daehak Ro, Seoul 03080, South Korea