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Treatment and posttreatment effects of mandibular cervical headgear followed by fixed appliances in Class III malocclusion.
Am J Orthod Dentofacial Orthop. 2008 Mar; 133(3):371-8; quiz 476.e1.AJ

Abstract

INTRODUCTION

In this cephalometric investigation, we compared the treatment and posttreatment effects on patients undergoing an initial phase of mandibular cervical headgear (MCH) therapy followed later by comprehensive edgewise therapy with untreated Class III controls.

METHODS

The treated sample consisted of 21 patients treated consecutively with MCH before the pubertal growth spurt (average age, 10 years 2 months at the beginning of treatment). At the final observation period (average age, 15 years 3 months), all patients were in decelerative growth phases as determined by the cervical vertebral maturation method. Active treatment and posttreatment effects were evaluated in the treated group with nonparametric statistical analysis for paired samples. The treated sample was compared with a nonparametric statistical test for independent samples with 20 untreated Class III subjects who were matched for malocclusion, sex, and stage of cervical vertebral maturation to the treatment group.

RESULTS AND CONCLUSIONS

MCH therapy followed by fixed appliances was shown to be an effective treatment for the correction of skeletal Class III malocclusion at postpubertal observation. The favorable skeletal effects consisted mainly of smaller increases in mandibular length and advancement with respect to the controls, with the final outcome of significant improvements in the sagittal skeletal (+4 mm for the Wits appraisal) and dental (+2.7 mm for overjet, -4.4 mm for molar relationship) parameters. This treatment protocol also induced significant downward rotation of the mandible (2.8 degrees).

Authors+Show Affiliations

Department of Orthodontics, Institute of Health Sciences, CES University, Medellin, Colombia.No affiliation info availableNo affiliation info availableNo affiliation info available

Pub Type(s)

Controlled Clinical Trial
Journal Article

Language

eng

PubMed ID

18331935

Citation

Rey, Diego, et al. "Treatment and Posttreatment Effects of Mandibular Cervical Headgear Followed By Fixed Appliances in Class III Malocclusion." American Journal of Orthodontics and Dentofacial Orthopedics : Official Publication of the American Association of Orthodontists, Its Constituent Societies, and the American Board of Orthodontics, vol. 133, no. 3, 2008, pp. 371-8; quiz 476.e1.
Rey D, Angel D, Oberti G, et al. Treatment and posttreatment effects of mandibular cervical headgear followed by fixed appliances in Class III malocclusion. Am J Orthod Dentofacial Orthop. 2008;133(3):371-8; quiz 476.e1.
Rey, D., Angel, D., Oberti, G., & Baccetti, T. (2008). Treatment and posttreatment effects of mandibular cervical headgear followed by fixed appliances in Class III malocclusion. American Journal of Orthodontics and Dentofacial Orthopedics : Official Publication of the American Association of Orthodontists, Its Constituent Societies, and the American Board of Orthodontics, 133(3), 371-8; quiz e1. https://doi.org/10.1016/j.ajodo.2006.04.043
Rey D, et al. Treatment and Posttreatment Effects of Mandibular Cervical Headgear Followed By Fixed Appliances in Class III Malocclusion. Am J Orthod Dentofacial Orthop. 2008;133(3):371-8; quiz 476.e1. PubMed PMID: 18331935.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Treatment and posttreatment effects of mandibular cervical headgear followed by fixed appliances in Class III malocclusion. AU - Rey,Diego, AU - Angel,David, AU - Oberti,Giovanni, AU - Baccetti,Tiziano, PY - 2006/01/16/received PY - 2006/03/19/revised PY - 2006/04/11/accepted PY - 2008/3/12/pubmed PY - 2008/3/26/medline PY - 2008/3/12/entrez SP - 371-8; quiz 476.e1 JF - American journal of orthodontics and dentofacial orthopedics : official publication of the American Association of Orthodontists, its constituent societies, and the American Board of Orthodontics JO - Am J Orthod Dentofacial Orthop VL - 133 IS - 3 N2 - INTRODUCTION: In this cephalometric investigation, we compared the treatment and posttreatment effects on patients undergoing an initial phase of mandibular cervical headgear (MCH) therapy followed later by comprehensive edgewise therapy with untreated Class III controls. METHODS: The treated sample consisted of 21 patients treated consecutively with MCH before the pubertal growth spurt (average age, 10 years 2 months at the beginning of treatment). At the final observation period (average age, 15 years 3 months), all patients were in decelerative growth phases as determined by the cervical vertebral maturation method. Active treatment and posttreatment effects were evaluated in the treated group with nonparametric statistical analysis for paired samples. The treated sample was compared with a nonparametric statistical test for independent samples with 20 untreated Class III subjects who were matched for malocclusion, sex, and stage of cervical vertebral maturation to the treatment group. RESULTS AND CONCLUSIONS: MCH therapy followed by fixed appliances was shown to be an effective treatment for the correction of skeletal Class III malocclusion at postpubertal observation. The favorable skeletal effects consisted mainly of smaller increases in mandibular length and advancement with respect to the controls, with the final outcome of significant improvements in the sagittal skeletal (+4 mm for the Wits appraisal) and dental (+2.7 mm for overjet, -4.4 mm for molar relationship) parameters. This treatment protocol also induced significant downward rotation of the mandible (2.8 degrees). SN - 1097-6752 UR - https://www.unboundmedicine.com/medline/citation/18331935/Treatment_and_posttreatment_effects_of_mandibular_cervical_headgear_followed_by_fixed_appliances_in_Class_III_malocclusion_ L2 - https://linkinghub.elsevier.com/retrieve/pii/S0889-5406(07)01186-9 DB - PRIME DP - Unbound Medicine ER -