K. Bjerklin et al., LONG-TERM TREATMENT EFFECTS IN CHILDREN WITH ECTOPIC ERUPTION OF THE MAXILLARY FIRST PERMANENT MOLARS, European journal of orthodontics, 17(4), 1995, pp. 293-304
Forty-five out of forty-six children with irreversible ectopic eruptio
n of at least one of the maxillary first permanent molars and treated
with cervical headgear could be reached for a 10-year follow-up. The m
ean age at the start of treatment was 8.3 years (range 6.5-9.9 years).
Forty-six individuals served as controls. Two forms of discriminant a
nalysis were used to evaluate treatment effects. The main results are
illustrated by pretreatment and 10-year follow-up scatter plots. The l
atter showed the patients and controls were intermingled, indicating a
uniformity of the cases after treatment. All negative side-effects of
the treatment were eliminated at the follow-up. Cervical traction tre
atment is a good choice for correcting ectopically erupted upper first
molars in suitable cases.