The Journal of Contemporary Dental Practice

Register      Login

SEARCH WITHIN CONTENT

FIND ARTICLE

Volume / Issue

Online First

Archive
Related articles

VOLUME 12 , ISSUE 1 ( January-February, 2011 ) > List of Articles

RESEARCH ARTICLE

A Retrospective Cephalometric Evaluation of Dental Changes with Activator and Activator Headgear Combination in the Treatment of Skeletal Class II Malocclusion

G Anil Kumar, Amit Maheshwari

Citation Information : Kumar GA, Maheshwari A. A Retrospective Cephalometric Evaluation of Dental Changes with Activator and Activator Headgear Combination in the Treatment of Skeletal Class II Malocclusion. J Contemp Dent Pract 2011; 12 (1):14-18.

DOI: 10.5005/jp-journals-10024-1003

Published Online: 01-12-2011

Copyright Statement:  Copyright © 2011; The Author(s).


Abstract

Aim

The aims of this study were to evaluate the dental changes brought about by activator and activator headgear combination (ACHG) and to determine whether we can achieve control over the lower incisor proclination which is a side effect of using functional appliances; or not, while treating cases of skeletal class II malocclusions.

Methods

Lateral cephalograms of 45 skeletal class II division 1 patients were selected for the study. Fifteen of them were successfully treated with an Andresen activator and the other 15 with an activator headgear combination. Fifteen class II subjects who had declined treatment served as the control group. Cephalometric landmarks were marked by one author to avoid interobserver variability.

Results

The results revealed that both the activator and the activator headgear combination significantly (p < 0.001) affected dental variables measured. The mandibular incisor proclination was effectively controlled in the activator headgear combination group.

Conclusion

An activator headgear combination would offer itself as a better option compared with activator alone in the treatment of skeletal class II malocclusions especially in cases with proclined mandibular incisors.

Clinical significance

When one of the treatment goals is to achieve a greater control over mandibular incisor proclination in the treatment of Skeletal Class II malocclusions, employing a combination of activator and headgear may substantially improve clinical outcomes.

How to cite this article

Lall R, Kumar GA, Maheshwari A Kumar M. A Retrospective Cephalometric Evaluation of Dental Changes with Activator and Activator Headgear Combination in the Treatment of Skeletal Class II Malocclusion. J Contemp Dent Pract 2011;12(1):14-18.


PDF Share
  1. Combination headgear activator. JCO 1984;18(3): 185-89.
  2. Cephalometric changes from activator headgear treatment of class II, division 1 malocclusion. JCO 1987; 21(7):466-69.
  3. Treatment of class II malocclusion with a headgear-activator combination. JCO 1989; 26(6):430-33.
  4. Effects of activator treatment on class II, division 1 malocclusion. JCO 1989;23(8):560-63.
  5. Treatment effects produced by the bionator appliance. Comparison with an untreated class II sample. Eur J Orthod 2004;26:65-72.
  6. Evaluation of facial profile changes in individuals with skeletal class II anomaly treated with activator and activator + occipital headgear. Turk Orthodonti Dergisi 1989;2:299-306.
  7. Effects of activator and activator + anterior high-pull headgear on the growth direction of class 2 cases. Turk Orthodonti Dergisi 1989;2:92-102.
  8. Class II: A comparison of activator and activator headgear combination appliances. European Journal of Orthodontics 1994;16:149-57.
  9. Orthodontic and orthopedic effects of activator, activator-HG combination, and bass appliances: A comparative study. American J of Orthod and Dentofa Orthoped 1996;110:36-45.
  10. Initial effects of treatment of class II malocclusion with the herren activator, activator headgear combination and Jasper Jumper. Ame J of Orthod and Dentof Orthoped 1997;112:19-27.
  11. The initial effects of the treatment of class II, division 1 malocclusions with the van Beek activator compared with the effects of the Herren activator and an activator-headgear combination. European J of Orthodon 1998;20:389-97.
  12. Vertical control with a headgear-activator combination. JCO 1990;24(10):618-24.
  13. Activator versus cervical headgear: Superimpositional cephalometric comparison. Am J Orthod 2003;123(3):296-305.
  14. Growth and treatment changes in patients treated with a headgear-activator appliance. Am J Orthod 2002;121(4):376-84.
  15. Skeletal and dentoalveolar changes as a result of headgear activator therapy related to different vertical growth patterns. European Journal of Orthodontics 1992;14:140-46.
  16. Treatment of class II, division 1 malocclusion with the activator and with the Begg technique. Schweizer Monatsschrift fur Zahnmedizin 1992;102:1037-45.
  17. The effects of activator treatment on the craniofacial structures of class II division 1 patients. European J of Orthod 2003;25: 87-93.
PDF Share
PDF Share

© Jaypee Brothers Medical Publishers (P) LTD.