Comparative study of the clinical effects of three different functional appliances on the treatment of skeletal class II malocclusion / 华西口腔医学杂志
West China Journal of Stomatology
; (6): 406-408, 2008.
Article
en Zh
| WPRIM
| ID: wpr-264404
Biblioteca responsable:
WPRO
ABSTRACT
<p><b>OBJECTIVE</b>To evaluate whether there was any difference on the clinical effects of Twin-block, Activator and Herbst appliances on the clinical effects of growing children with skeletal Class II malocclusion.</p><p><b>METHODS</b>60 patients with skeletal Angle Class II malocclusion were divided into three groups (Twin-block group, Activator group, Herbst group), 20 in each group. The patients of three groups were respectively treated by Twin-block, Activator and Herbst appliances. The patients were 10-13 years old(mean 11.6) before treatment, and were mainly with mandibular retrognathia. Data of pre- and post-treatment were measured and analyzed.</p><p><b>RESULTS</b>There was statistically significance of ANB, SNB, Go-Gn, Co-Gn, L1-MP in sagittal changes, and N-Me, ANS-Me, S-Go, SN-MP, Co-Go in vertical changes after treatment of three groups. Herbst group was more effective than Twin-block group and Activator group in the increase of L1-MP, but the effects on maxilla were not significant among them. There was no statistical significance of Ptm-A, OB, N-Me, ANS-Me, S-Go and Co-Go between 3 groups.</p><p><b>CONCLUSION</b>Treatment effects of three different functional appliances (Twin-block, Activator and Herbst) are similar in the early treatment of skeletal Class II malocclusion. Compared with Twin-block and Activator, Herbst has more effects on orthopedic of mandibular and lower anterior teeth.</p>
Texto completo:
1
Base de datos:
WPRIM
Asunto principal:
Cefalometría
/
Aparatos Ortodóncicos Funcionales
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Maloclusión Clase II de Angle
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Mandíbula
/
Maxilar
Límite:
Adolescent
/
Child
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Female
/
Humans
/
Male
Idioma:
Zh
Revista:
West China Journal of Stomatology
Año:
2008
Tipo del documento:
Article