Authors
C.F. Liew
BDSc, MDSc, Specialist practice, Orthodontics, New South Wales, Australia
P. Brockhurst
PhD, MIMMA, MIE(Aust), CP(Eng), Mount Beauty, Victoria, Australia
T.J. Freer
BDSc, FDSRCS(Eng), DOrthRCS, PhD, FICD, Professor, Division of Orthodontics, The University of Queensland, Queensland, Australia