Effects of traction arch combined with protraction on dentofacial changes of anterior crossbite in mixed dentition / 实用口腔医学杂志
Journal of Practical Stomatology
; (6)1996.
Article
en Zh
| WPRIM
| ID: wpr-540966
Biblioteca responsable:
WPRO
ABSTRACT
Objective:To evaluate effects of traction arch combined with protraction on dental and skeletal changes in patients with Angel Ⅲ malocclusion in mixed dentition.Methods:Seventeen patients with Angle Ⅲ malocclusion were selected and treated with traction arch combined with protraction. Cephalometric radiographs were taken 6 months before the initiation of treatment, at the initiation of treatment and 6 months after treatment.Cephalometric analysis was used to examine the dental and skeletal changes.Results:Significant changes of maxillary anterior displacement and mandibular downward and backward rotation were observed in the seventeen patients:SNA increased 2.6?,A point moved forward 3.1 mm. The overjet correction of anterior teeth was 5.2 mm, 63% of the overjet correction was due to skeletal changes and 37% due to dental changes. Conclusion:Traction arch combined with protraction is a simple and effective apparatus in the treatment of Angle Ⅲ malocclusion.
Texto completo:
1
Base de datos:
WPRIM
Idioma:
Zh
Revista:
Journal of Practical Stomatology
Año:
1996
Tipo del documento:
Article