Related Experiment Video
Updated: Jul 11, 2026
Measuring Maxillary Posterior Tooth Movement: A Model Assessment using Palatal and Dental Superimposition
Published on: February 23, 2024
A long-term follow-up study of Class II malocclusion correction after treatment with Class II elastics or fixed
Birgitta Nelson1, Urban Hägg, Ken Hansen
1Department of Orthodontics, Public Dental Health Service, Malmo, Sweden.
Introduction:
The aim of this study was to compare dentofacial morphology and long-term follow-up changes in growing males with skeletal Class II malocclusions treated without extractions and with either Begg or Herbst appliances.
Methods:
Lateral cephalograms were obtained at the start of treatment, after active treatment, and after long-term follow-up.
Results:
Treatment effects differed between the groups, with usually more favorable effects in the Herbst group. However, during the follow-up period, many of the changes were reversed. During the total observation period, maxillary prognathism and lower anterior facial height increased more in the Begg group than in the Herbst group.
Conclusions:
Although there were initial marked differences in the treatment outcomes, most of these differences were not sustained over the longer term.