SUMÁRIO TRANSCRITO DO TRABALHO COMPLETO
EM THE ANGLE ORTHODONTIST
VOL. 68 - NO 3 - 1998
|Childhood and adolescent changes os skeletal
Peter H. Buschang, PhD
This paper describes the development of anteroposterior
(AP) and vertical (VER) skeletal relationships. A mixedlongitudinal sample
of 49 females and 50 males was followed during childhood and adolescence.
Childhood growth changes were assessed from 6 to 10
years for females and 8 to 12 years for males. Adolescent changes were
evaluated from 9 to 13 years for females and 11 tot 5 years for males.
Anteroposterior relationships were described by the horizontal distance
between ANS and Pg. Vertical relationships were described by the vertical
distance between Pg and Go. Subsamples were defined based on overall changes
(AP and VER) that were either greater than or less than average. The results
showed that AP and VER relationships were not stable during growth. AP
relationships changed over time due to differential growth movements of
the mandible (as opposed to the maxilla). There was greater potential for
horizontal discrepancies to decrease during childhood than during adolescence.
The potential for AP discrepancies to increase was greater during adolescence.
The VER relationships increased in the majority of subjects. The subsample
whose vertical discrepancies increased most showed less inferior
movement of gonion and more inferior movement of pogonion. Inferior movements
of Pg and Go were greater during adolescence than childhood.
With a commentary by Robert J. Isaacson
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