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.
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.
Authors: Robert Y Wei; Arjun Atresh; Antonio Ruellas; Lucia H S Cevidanes; Tung Nguyen; Brent E Larson; Jonathan E Mangum; David J Manton; Paul M Schneider Journal: Am J Orthod Dentofacial Orthop Date: 2020-08-20 Impact factor: 2.650