The quad-helix appliance in the primary dentition--orthodontic and orthopedic measurements.
Changes in the midpalatal suture and the alterations in intercanine and intermolar widths with the use of the quad-helix appliance were evaluated. Study casts and occlusal radiographs from 10 patients with a mean age of 4 years and 10 months (SD 11 months) were analyzed. A statistically significant palatal suture widening was observed in all cases. The proportion of dental tipping accomplished with the treatment was greater than opening of the suture.
Vizzotto
Mariana Boessio
MB
School of Dentistry, Federal University of Rio Grande do Sul, Brazil. mari_vizzotto@yahoo.com.br
de Araújo
Fernando Borba
FB
da Silveira
Heloísa Emília Dias
HE
Boza
Adriano Asmuz
AA
Closs
Luciane Quadrado
LQ
D000202:Activator Appliances; D002508:Cephalometry; D002648:Child; D002675:Child, Preschool; D005147:Facial Bones / Q000254:growth & development; D005500:Follow-Up Studies; D006801:Humans; D008310:Malocclusion / Q000628:therapy*; D009972:Orthodontics, Interceptive / Q000295:instrumentation* / Q000379:methods; D010155:Palatal Expansion Technique / Q000295:instrumentation*; D010159:Palate / Q000033:anatomy & histology; D014087:Tooth Movement Techniques / Q000295:instrumentation*; D014094:Tooth, Deciduous; D016896:Treatment Outcome