Cephalometric evaluation of skeletal alterations induced by Herbst appliance during mixed dentition
Dental press j. orthod. (Impr.)
; 17(2): 140-150, Mar.-Apr. 2012. ilus, tab
Article
em En
| LILACS
| ID: lil-626381
Biblioteca responsável:
BR1.1
ABSTRACT
OBJECTIVE:
The present prospective clinical study was designed in order to evaluate horizontal and vertical skeletal alterations induced by the use of Herbst appliance in individuals with Class II, division 1 malocclusion during mixed dentition stage.METHODS:
The sampling consisted of 15 pre-pubertal individuals (12 boys and 3 girls; initial age 9 years and 6 months), who were treated with Herbst appliance for a period of 7 months. The effects of the treatment were compared to a group of 15 individuals with Class II, division 1 malocclusion (8 boys and 7 girls, initial age averaged 9 years and 1 month), orthodontically untreated, who were followed up for a period of 12 months. Statistical analysis was performed with Student's t-test with significance level at 5%.RESULTS:
It was showed that the treatment with Herbst appliance in mixed dentition stage has restricted maxilla growth. Mandibular and palatal planes have not undergone significant alteration; however, anterior and posterior facial heights have increased significantly. Facial convexity and maxillomandibular relationship were altered positively. Mandible has positioned significantly forward and its effective length increased 2.5 times more than the increase observed in control group.CONCLUSION:
It was possible to conclude that Herbst appliance was able to provide satisfactory results in individuals during mixed dentition stage.
Texto completo:
1
Coleções:
01-internacional
Base de dados:
LILACS
Idioma:
En
Revista:
Dent. press j. orthod. (Online)
/
Dental Press J Orthod
/
Dental press j. orthod. (Impr.)
/
Dental press journal of orthodontics (Impresso)
Assunto da revista:
ORTODONTIA
Ano de publicação:
2012
Tipo de documento:
Article
País de afiliação:
Brasil
País de publicação:
Brasil