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Dentofacial effects of bone-anchored maxillary protraction: a controlled study of consecutively treated Class III patients.
Am J Orthod Dentofacial Orthop. 2010 Nov; 138(5):577-81.AJ

Abstract

INTRODUCTION

In this cephalometric investigation, we analyzed the treatment effects of bone-anchored maxillary protraction (BAMP) with miniplates in the maxilla and mandible connected by Class III elastics in patients with Class III malocclusion.

METHODS

The treated sample consisted of 21 Class III patients consecutively treated with the BAMP protocol before the pubertal growth spurt (mean age, 11.10 ± 1.8 years) and reevaluated after BAMP therapy, about 1 year later. The treated group was compared with a matched control group of 18 untreated Class III subjects. Significant differences between the treated and control groups were assessed with independent-sample t tests (P <0.05).

RESULTS

Sagittal measurements of the maxilla showed highly significant improvements during active treatment (about 4 mm more than the untreated controls), with significant protraction effects at orbitale and pterygomaxillare. Significant improvements of overjet and molar relationship were recorded, as well as in the mandibular skeletal measures at Point B and pogonion. Vertical skeletal changes and modifications in incisor inclination were negligible, except for a significant proclination of the mandibular incisors in the treated group. Significant soft-tissue changes reflected the underlying skeletal modifications.

CONCLUSIONS

Compared with growth of the untreated Class III subjects, the BAMP protocol induced an average increment on skeletal and soft-tissue advancement of maxillary structures of about 4 mm, and favorable mandibular changes exceeded 2 mm.

Authors+Show Affiliations

Department of Orthodontics, School of Dentistry, University of North Carolina, Chapel Hill, NC, USA. hugo.declerck@skynet.beNo affiliation info availableNo affiliation info available

Pub Type(s)

Comparative Study
Controlled Clinical Trial
Journal Article

Language

eng

PubMed ID

21055597

Citation

De Clerck, Hugo, et al. "Dentofacial Effects of Bone-anchored Maxillary Protraction: a Controlled Study of Consecutively Treated Class III Patients." 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. 138, no. 5, 2010, pp. 577-81.
De Clerck H, Cevidanes L, Baccetti T. Dentofacial effects of bone-anchored maxillary protraction: a controlled study of consecutively treated Class III patients. Am J Orthod Dentofacial Orthop. 2010;138(5):577-81.
De Clerck, H., Cevidanes, L., & Baccetti, T. (2010). Dentofacial effects of bone-anchored maxillary protraction: a controlled study of consecutively treated Class III patients. American Journal of Orthodontics and Dentofacial Orthopedics : Official Publication of the American Association of Orthodontists, Its Constituent Societies, and the American Board of Orthodontics, 138(5), 577-81. https://doi.org/10.1016/j.ajodo.2009.10.037
De Clerck H, Cevidanes L, Baccetti T. Dentofacial Effects of Bone-anchored Maxillary Protraction: a Controlled Study of Consecutively Treated Class III Patients. Am J Orthod Dentofacial Orthop. 2010;138(5):577-81. PubMed PMID: 21055597.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Dentofacial effects of bone-anchored maxillary protraction: a controlled study of consecutively treated Class III patients. AU - De Clerck,Hugo, AU - Cevidanes,Lucia, AU - Baccetti,Tiziano, PY - 2009/07/01/received PY - 2009/10/01/revised PY - 2009/10/01/accepted PY - 2010/11/9/entrez PY - 2010/11/9/pubmed PY - 2010/12/14/medline SP - 577 EP - 81 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 - 138 IS - 5 N2 - INTRODUCTION: In this cephalometric investigation, we analyzed the treatment effects of bone-anchored maxillary protraction (BAMP) with miniplates in the maxilla and mandible connected by Class III elastics in patients with Class III malocclusion. METHODS: The treated sample consisted of 21 Class III patients consecutively treated with the BAMP protocol before the pubertal growth spurt (mean age, 11.10 ± 1.8 years) and reevaluated after BAMP therapy, about 1 year later. The treated group was compared with a matched control group of 18 untreated Class III subjects. Significant differences between the treated and control groups were assessed with independent-sample t tests (P <0.05). RESULTS: Sagittal measurements of the maxilla showed highly significant improvements during active treatment (about 4 mm more than the untreated controls), with significant protraction effects at orbitale and pterygomaxillare. Significant improvements of overjet and molar relationship were recorded, as well as in the mandibular skeletal measures at Point B and pogonion. Vertical skeletal changes and modifications in incisor inclination were negligible, except for a significant proclination of the mandibular incisors in the treated group. Significant soft-tissue changes reflected the underlying skeletal modifications. CONCLUSIONS: Compared with growth of the untreated Class III subjects, the BAMP protocol induced an average increment on skeletal and soft-tissue advancement of maxillary structures of about 4 mm, and favorable mandibular changes exceeded 2 mm. SN - 1097-6752 UR - https://www.unboundmedicine.com/medline/citation/21055597/Dentofacial_effects_of_bone_anchored_maxillary_protraction:_a_controlled_study_of_consecutively_treated_Class_III_patients_ L2 - https://linkinghub.elsevier.com/retrieve/pii/S0889-5406(10)00568-8 DB - PRIME DP - Unbound Medicine ER -