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Long-term outcomes of Class III treatment with mandibular cervical headgear followed by fixed appliances.
Angle Orthod. 2009 Sep; 79(5):828-34.AO

Abstract

OBJECTIVE

To evaluate the stability of the outcomes of mandibular cervical headgear (MCH) and fixed appliance-treated Class III patients at a long-term posttreatment (5 years) observation, compared with well-matched untreated Class III controls, following a previous report on the short-term outcomes of this protocol.

MATERIALS AND METHODS

The treated group consisted of 20 patients with dentoskeletal Class III malocclusions treated with a two-phase protocol consisting of MCH and fixed appliances, while the control group comprised 18 untreated subjects with similar dentoskeletal Class III malocclusion. Lateral cephalograms of both patients and controls were analyzed at two time points: posttreatment (PT), after two-phase treatment; and long term (LT). All patients were at a postpubertal stage of skeletal maturity at PT, and they showed CS6 at LT, thus revealing completion of pubertal craniofacial growth.

RESULTS

In the long term, the treatment group showed significantly smaller values for mandibular length (Co-Gn), SNB angle, maxillomandibular differential, and molar relation. When compared with the controls, the treated patients exhibited also greater values for ANB angle, Wits appraisal, and overjet at LT. No significant difference between the two groups was found for the changes occurring from PT to LT.

CONCLUSIONS

Favorable dentoskeletal outcomes induced by MCH and fixed appliances remained stable in the long term; untreated Class III malocclusion did not show any tendency toward self-improvement during the postpubertal interval.

Authors+Show Affiliations

Department of Orthodontics, University of Florence, Florence, Italy. t.baccetti@odonto.unifi.itNo affiliation info availableNo affiliation info availableNo affiliation info availableNo affiliation info available

Pub Type(s)

Controlled Clinical Trial
Journal Article

Language

eng

PubMed ID

19705951

Citation

Baccetti, Tiziano, et al. "Long-term Outcomes of Class III Treatment With Mandibular Cervical Headgear Followed By Fixed Appliances." The Angle Orthodontist, vol. 79, no. 5, 2009, pp. 828-34.
Baccetti T, Rey D, Oberti G, et al. Long-term outcomes of Class III treatment with mandibular cervical headgear followed by fixed appliances. Angle Orthod. 2009;79(5):828-34.
Baccetti, T., Rey, D., Oberti, G., Stahl, F., & McNamara, J. A. (2009). Long-term outcomes of Class III treatment with mandibular cervical headgear followed by fixed appliances. The Angle Orthodontist, 79(5), 828-34. https://doi.org/10.2319/111408-580.1
Baccetti T, et al. Long-term Outcomes of Class III Treatment With Mandibular Cervical Headgear Followed By Fixed Appliances. Angle Orthod. 2009;79(5):828-34. PubMed PMID: 19705951.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Long-term outcomes of Class III treatment with mandibular cervical headgear followed by fixed appliances. AU - Baccetti,Tiziano, AU - Rey,Diego, AU - Oberti,Giovanni, AU - Stahl,Franka, AU - McNamara,James A,Jr PY - 2008/11/01/received PY - 2008/12/01/accepted PY - 2009/8/27/entrez PY - 2009/8/27/pubmed PY - 2009/12/16/medline SP - 828 EP - 34 JF - The Angle orthodontist JO - Angle Orthod VL - 79 IS - 5 N2 - OBJECTIVE: To evaluate the stability of the outcomes of mandibular cervical headgear (MCH) and fixed appliance-treated Class III patients at a long-term posttreatment (5 years) observation, compared with well-matched untreated Class III controls, following a previous report on the short-term outcomes of this protocol. MATERIALS AND METHODS: The treated group consisted of 20 patients with dentoskeletal Class III malocclusions treated with a two-phase protocol consisting of MCH and fixed appliances, while the control group comprised 18 untreated subjects with similar dentoskeletal Class III malocclusion. Lateral cephalograms of both patients and controls were analyzed at two time points: posttreatment (PT), after two-phase treatment; and long term (LT). All patients were at a postpubertal stage of skeletal maturity at PT, and they showed CS6 at LT, thus revealing completion of pubertal craniofacial growth. RESULTS: In the long term, the treatment group showed significantly smaller values for mandibular length (Co-Gn), SNB angle, maxillomandibular differential, and molar relation. When compared with the controls, the treated patients exhibited also greater values for ANB angle, Wits appraisal, and overjet at LT. No significant difference between the two groups was found for the changes occurring from PT to LT. CONCLUSIONS: Favorable dentoskeletal outcomes induced by MCH and fixed appliances remained stable in the long term; untreated Class III malocclusion did not show any tendency toward self-improvement during the postpubertal interval. SN - 0003-3219 UR - https://www.unboundmedicine.com/medline/citation/19705951/Long_term_outcomes_of_Class_III_treatment_with_mandibular_cervical_headgear_followed_by_fixed_appliances_ L2 - https://meridian.allenpress.com/angle-orthodontist/article-lookup/doi/10.2319/111408-580.1 DB - PRIME DP - Unbound Medicine ER -