[PAR index of adolescents with congenital missing teeth pre- and post-orthodontic treatment].
OBJECTIVE
To assess the outcome of orthodontic treatment for adolescents with congenital missing teeth using the PAR (Peer Assessment Ration) index.


METHODS
The PAR index was adopted to evaluate and compare the teeth arrangement, molar occlusion, overjet, overbite and centerline condition of 20 adolescents with congenital missing teeth before and after orthodontic treatments.


RESULTS
The initial PAR scores and weighted PAR total scores decreased significantly after Orthodontic treatments (P < 0.01), except for the centerline. The PAR total scores decreased by 14.25 +/- 7.91 (80.90% +/- 11.09%). The weighted PAR total scores decreased by 15.45 +/- 8.16 (75.34% +/- 18.41%).


CONCLUSIONS
PAR index can well reflect the improvement of occlusion characters by orthodontic treatment for adolescents with congenital missing teeth. But further improvement is needed for clinical application.
Zhang
Xiao-Ge
XG
Department of Orthodontics, West China Stomatological Hospital, Sichuan University, Chengdu 610041, China.
Huang
Ning
N
Chen
Yang-Xi
YX
He
Quan-Cheng
QC
D000293:Adolescent; D002648:Child; D003766:Dental Occlusion; D005260:Female; D006801:Humans; D008297:Male; D008310:Malocclusion / Q000628:therapy*; D009971:Orthodontics, Corrective / Q000592:standards*; D017063:Outcome Assessment, Health Care / Q000379:methods* / Q000706:statistics & numerical data; D018024:Peer Review, Health Care / Q000379:methods; D016388:Tooth Loss / Q000628:therapy*; D016896:Treatment Outcome