[1] Kaohsiung Med Univ, Dept Anat, Coll Med, Kaohsiung, Taiwan
[2] Kaohsiung Med Univ, Sch Dent, Coll Dent Med, 100 Shih Chuan 1st Rd, Kaohsiung 80708, Taiwan
[3] Kaohsiung Med Univ, Grad Program Dent Sci, Coll Dent Med, 100 Shih Chuan 1st Rd, Kaohsiung 80708, Taiwan
[4] Kaohsiung Municipal Hsiaokang Hosp, Dept Dent, Kaohsiung, Taiwan