Occlusal changes of Class II malocclusion treatment between Fränkel and the eruption guidance appliances.
The objective of this study was to compare the occlusal changes of Class II malocclusion treatment provided by two different types of appliances. Group 1 comprised 25 patients treated with the Fränkel appliance and group 2 comprised 30 patients treated with the eruption guidance appliance. Evaluations were performed on the initial and final study models of the patients using the peer assessment rating (PAR) index. The final mean PAR index, the mean PAR change, and the percent PAR reduction of each group were compared using the Student's t-test. Results demonstrated that there were no statistically significant differences between the final PAR index, the PAR changes, and the percent PAR reduction of the two groups. Therefore, it was concluded that the occlusal changes provided by the two appliances are similar, as evaluated by the PAR index.
Janson
Guilherme
G
Department of Orthodontics, Bauru Dental School, Bauru, Brazil. jansong@travelnet.com.br
de Souza
José Eduardo Prado
JE
de Freitas
Marcos Roberto
MR
Henriques
José Fernando Castanha
JF
Cavalcanti
Celso Tinôco
CT
D002648:Child; D005260:Female; D006801:Humans; D008297:Male; D008312:Malocclusion, Angle Class II / Q000628:therapy*; D015588:Observer Variation; D017289:Orthodontic Appliances, Functional; D014087:Tooth Movement Techniques / Q000295:instrumentation*