Journal article
Treating Class II malocclusion in children. Vertical skeletal effects of high-pull or low-pull headgear during comprehensive orthodontic treatment and retention.
- Antonarakis GS Department of Orthodontics, Dental School, University of Geneva, Geneva, Switzerland.
- Kiliaridis S
- 2014-12-30
Published in:
- Orthodontics & craniofacial research. - 2015
angle Class II
cephalometry
extraoral traction appliances
malocclusion
Case-Control Studies
Cephalometry
Child
Extraoral Traction Appliances
Female
Humans
Incisor
Longitudinal Studies
Male
Malocclusion, Angle Class II
Mandible
Maxilla
Nasal Bone
Orthodontic Appliance Design
Orthodontic Retainers
Retrospective Studies
Sella Turcica
Stress, Mechanical
Treatment Outcome
Vertical Dimension
English
OBJECTIVES
To evaluate, in Class II malocclusion children, vertical skeletal changes occurring with high- and low-pull headgear during non-extraction comprehensive orthodontic treatment, and retention.
SETTING AND SAMPLE POPULATION
Two groups of thirty Class II malocclusion children (mean age 10.8 years) who had undergone non-extraction comprehensive orthodontic treatment with either high- or low-pull headgear and fixed appliances.
MATERIAL AND METHODS
Retrospective longitudinal study, where pre-treatment, post-treatment and at least 2 year post-retention lateral cephalometric radiographs were analyzed. Comparisons were made concerning changes during treatment and retention in high- or low-pull headgear-treated children. Correlation analyses were carried out investigating changes in vertical cephalometric parameters and pre-treatment vertical facial pattern or type of headgear used.
RESULTS
During treatment, sagittal relationships improved in all children and remained stable during retention. Vertically, in both high- and low-pull headgear groups, the intermaxillary angle as well as the maxillary and mandibular plane angles did not show statistically significant changes during treatment or retention, and large variation was seen between patients. When pooling the whole patient sample, change in the vertical facial pattern was independent of the pre-treatment vertical facial pattern or type of headgear used.
CONCLUSION
When treating Class II malocclusion children non-extraction with high- or low-pull headgear and fixed appliances, changes in vertical skeletal relationships demonstrate wide variation, both during treatment and retention. Dentoalveolar changes brought about by these appliances may not be able to make a predictable difference in vertical skeletal patterns of growing patients.
To evaluate, in Class II malocclusion children, vertical skeletal changes occurring with high- and low-pull headgear during non-extraction comprehensive orthodontic treatment, and retention.
SETTING AND SAMPLE POPULATION
Two groups of thirty Class II malocclusion children (mean age 10.8 years) who had undergone non-extraction comprehensive orthodontic treatment with either high- or low-pull headgear and fixed appliances.
MATERIAL AND METHODS
Retrospective longitudinal study, where pre-treatment, post-treatment and at least 2 year post-retention lateral cephalometric radiographs were analyzed. Comparisons were made concerning changes during treatment and retention in high- or low-pull headgear-treated children. Correlation analyses were carried out investigating changes in vertical cephalometric parameters and pre-treatment vertical facial pattern or type of headgear used.
RESULTS
During treatment, sagittal relationships improved in all children and remained stable during retention. Vertically, in both high- and low-pull headgear groups, the intermaxillary angle as well as the maxillary and mandibular plane angles did not show statistically significant changes during treatment or retention, and large variation was seen between patients. When pooling the whole patient sample, change in the vertical facial pattern was independent of the pre-treatment vertical facial pattern or type of headgear used.
CONCLUSION
When treating Class II malocclusion children non-extraction with high- or low-pull headgear and fixed appliances, changes in vertical skeletal relationships demonstrate wide variation, both during treatment and retention. Dentoalveolar changes brought about by these appliances may not be able to make a predictable difference in vertical skeletal patterns of growing patients.
- Language
-
- English
- Open access status
- closed
- Identifiers
-
- DOI 10.1111/ocr.12062
- PMID 25545335
- Persistent URL
- https://susi.usi.ch/global/documents/77826
Statistics
Document views: 26
File downloads: