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The integrated Herbst appliance--treatment effects in a group of adolescent males with Class II malocclusions compared with growth changes in an untreated control group.
Eur J Orthod. 2008 Apr; 30(2):120-7.EJ

Abstract

In this study, the effect of the integrated Herbst appliance (IHA) was examined in 30 Swedish males (mean age 14.2 +/- 0.96 years) with a Class II malocclusion. An evaluation of hand-wrist radiographs showed that the patients were in the maturation stages MP3-F, MP3-FG, or MP3-G at the start of treatment. The average treatment time with the Herbst mechanics was 0.7 years. Dentoskeletal and soft tissue parameters were analysed on lateral radiographic head films taken at the start and end of the IHA treatment. The pre- and post-Herbst values of a number of skeletal and dental variables in the treatment group were compared with the corresponding values in a group of untreated age-matched males with Class II malocclusions. Differences in the cephalometric measurements pre- and post-Herbst treatment were determined using paired t-tests. In general, the control group exhibited only minor or no changes during the period of observation, whereas treatment with the IHA resulted in statistically significant and favourable changes of the recorded variables. In the IHA patients, ANB angle was reduced on average by 2.1 degrees. However, a skeletal post-normality (ANB = 3.9 degrees) remained even though a Class I dental relationship had been obtained. In comparison with treatment effects achieved with other designs of Herbst appliances, some minor differences in the changes of the variables SNA and ML/NSL were noted in the present study. These differences could probably be attributed to the particular treatment protocol which was applied in the IHA treatments.

Authors+Show Affiliations

Department of Orthodontics, University of Umeå, Sweden.No affiliation info availableNo affiliation info available

Pub Type(s)

Controlled Clinical Trial
Journal Article

Language

eng

PubMed ID

18216374

Citation

Hägglund, Paul, et al. "The Integrated Herbst Appliance--treatment Effects in a Group of Adolescent Males With Class II Malocclusions Compared With Growth Changes in an Untreated Control Group." European Journal of Orthodontics, vol. 30, no. 2, 2008, pp. 120-7.
Hägglund P, Segerdal S, Forsberg CM. The integrated Herbst appliance--treatment effects in a group of adolescent males with Class II malocclusions compared with growth changes in an untreated control group. Eur J Orthod. 2008;30(2):120-7.
Hägglund, P., Segerdal, S., & Forsberg, C. M. (2008). The integrated Herbst appliance--treatment effects in a group of adolescent males with Class II malocclusions compared with growth changes in an untreated control group. European Journal of Orthodontics, 30(2), 120-7. https://doi.org/10.1093/ejo/cjm102
Hägglund P, Segerdal S, Forsberg CM. The Integrated Herbst Appliance--treatment Effects in a Group of Adolescent Males With Class II Malocclusions Compared With Growth Changes in an Untreated Control Group. Eur J Orthod. 2008;30(2):120-7. PubMed PMID: 18216374.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - The integrated Herbst appliance--treatment effects in a group of adolescent males with Class II malocclusions compared with growth changes in an untreated control group. AU - Hägglund,Paul, AU - Segerdal,Staffan, AU - Forsberg,Carl-Magnus, Y1 - 2008/01/23/ PY - 2008/1/25/pubmed PY - 2008/7/8/medline PY - 2008/1/25/entrez SP - 120 EP - 7 JF - European journal of orthodontics JO - Eur J Orthod VL - 30 IS - 2 N2 - In this study, the effect of the integrated Herbst appliance (IHA) was examined in 30 Swedish males (mean age 14.2 +/- 0.96 years) with a Class II malocclusion. An evaluation of hand-wrist radiographs showed that the patients were in the maturation stages MP3-F, MP3-FG, or MP3-G at the start of treatment. The average treatment time with the Herbst mechanics was 0.7 years. Dentoskeletal and soft tissue parameters were analysed on lateral radiographic head films taken at the start and end of the IHA treatment. The pre- and post-Herbst values of a number of skeletal and dental variables in the treatment group were compared with the corresponding values in a group of untreated age-matched males with Class II malocclusions. Differences in the cephalometric measurements pre- and post-Herbst treatment were determined using paired t-tests. In general, the control group exhibited only minor or no changes during the period of observation, whereas treatment with the IHA resulted in statistically significant and favourable changes of the recorded variables. In the IHA patients, ANB angle was reduced on average by 2.1 degrees. However, a skeletal post-normality (ANB = 3.9 degrees) remained even though a Class I dental relationship had been obtained. In comparison with treatment effects achieved with other designs of Herbst appliances, some minor differences in the changes of the variables SNA and ML/NSL were noted in the present study. These differences could probably be attributed to the particular treatment protocol which was applied in the IHA treatments. SN - 0141-5387 UR - https://www.unboundmedicine.com/medline/citation/18216374/The_integrated_Herbst_appliance__treatment_effects_in_a_group_of_adolescent_males_with_Class_II_malocclusions_compared_with_growth_changes_in_an_untreated_control_group_ L2 - https://academic.oup.com/ejo/article-lookup/doi/10.1093/ejo/cjm102 DB - PRIME DP - Unbound Medicine ER -