[1] Univ Pittsburgh, Sch Dent Med, Dept Oral Biol, Pittsburgh, PA 15260 USA
[2] CEMIC Ctr Med Educ & Clin Res, ECLAMC Latin Amer Collaborat Study Congenital Mal, Buenos Aires, DF, Argentina
[3] Hosp Area El Bolson, ECLAMC, El Bolson, RN, Argentina
[4] Univ Sao Paulo, Bauru Sch Dent, Bauru, SP, Brazil
[5] Medipol Istanbul Univ, Dept Pedodont, Istanbul, Turkey
[6] Istanbul Univ, Dept Pedodont, Istanbul, Turkey
[7] Yeditepe Univ, Dept Pediat Dent, Fac Dent, Istanbul, Turkey
[8] Univ Fed Fluminense, Sch Dent, Clin Res Unit, Niteroi, RJ, Brazil
[9] Univ Fed Fluminense, Inst Biol, Niteroi, RJ, Brazil
[10] Univ Pittsburgh, Sch Dent Med, Dept Endodont, Pittsburgh, PA USA
[11] Marmara Univ, Dept Pediat Dent, Fac Dent, Istanbul, Turkey
[12] Natl Inst Metrol INMETRO, Niteroi, RJ, Brazil
[13] Fundacao Oswaldo Cruz, Natl Inst Populat Med Genet, Dept Genet, ECLAMC,INAGEMP,CNPq, Rio De Janeiro, Brazil
[14] Univ Fed Rio de Janeiro, Natl Inst Populat Med Genet, Dept Genet, ECLAMC,INAGEMP,CNPq Inst Biol,Ctr Hlth Sci, Rio De Janeiro, Brazil