Cephalometric assessment of vertical control in the treatment of class II malocclusion with a combined maxillary splint
Braz. oral res
;
24(1): 34-39, Jan.-Mar. 2010. ilus, tab
Artigo
em Inglês
| LILACS
| ID: lil-541510
ABSTRACT
Vertical control is one of the primary objectives sought by orthodontists when treating malocclusions in hyperdivergent individuals. This investigation aimed at assessing vertical control, by cephalometric measurements, during the treatment of Angle Class II Division 1 malocclusion. Thirty cases, selected from the files of the São Leopoldo Mandic Dental Research Center, Brazil, of subjects with Angle Class II Division 1 malocclusion and facial hyperdivergence, were used in this study. The patients were treated using a combined extraoral appliance during a mean treatment time of 1.1 years. Pre- and posttreatment cephalometric measurements were compared to assess vertical control. The results were submitted to ANOVA (p = 5 percent). The ANOVA test revealed no statistically significant difference between the pretreatment and posttreatment values of OP (Occlusal plane angle) and SN.MP. While there was a decrease in Y-axis, FMA, and PP.MP, there was an increase in SN.PP, Co-Go, AFH, PFH, and FHI. It was concluded that the divergence in the facial lower third of the patients did not increase, suggesting that the combined extraoral appliance with the line of force application directed to the resistance center of the maxilla was effective in treating Angle Class II malocclusion in hyperdivergent subjects.
Texto completo:
DisponíveL
Índice:
LILACS (Américas)
Assunto principal:
Ortodontia Corretiva
/
Cefalometria
/
Aparelhos de Tração Extrabucal
/
Má Oclusão Classe II de Angle
Tipo de estudo:
Estudo observacional
Limite:
Feminino
/
Humanos
/
Masculino
Idioma:
Inglês
Revista:
Braz. oral res
Assunto da revista:
Odontologia
Ano de publicação:
2010
Tipo de documento:
Artigo
País de afiliação:
Brasil
Instituição/País de afiliação:
São Leopoldo Mandic Dental Research Center/BR
/
University of Campinas/BR
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