A prospective comparison clinical study was designed to
evaluate the effectiveness of the open bite bionator and the
upper posterior bite plane with a crib in the early treatment of
skeletal anterior open bite .
The bite plane /C sample (G1) incl
uded 20 subjects, 11
girls and 9 boys. The average age was 8.6 Years . The OBB
sample (G2) contained 20 subjects, 8 girls and 12 boys. The
average age was 8.8 years . Lateral cephalograms were
analyzed at T1 and T2 (T2 : after one year of treatment ) to
study the changes of the hard and soft tissues by using a special
program known as ADOrthoA.
