[1] Seoul Natl Univ, Sch Dent, Dept Oral Biochem, Seoul 110749, South Korea
[2] Seoul Natl Univ, Sch Dent, Program Craniomaxillofacial Reconstruct Sci, Dent Res Inst, Seoul 110749, South Korea
[3] Seoul Natl Univ, Sch Dent, BK21 CLS, Seoul 110749, South Korea
[4] Chungnam Natl Univ, Dept Adv Organ Mat & Text Syst Engn, Taejon 305764, South Korea
[5] Chungnam Natl Univ, BK21 FTIT, Taejon 305764, South Korea
[6] Seoul Natl Univ, Bundang Hosp, Sect Dent, Gyeonggi Do, South Korea