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Comparison of the zygoma anchorage system with cervical headgear in buccal segment distalization.
Eur J Orthod. 2009 Aug; 31(4):417-24.EJ

Abstract

This prospective study aimed to evaluate the effects of the zygoma anchorage system (ZAS) in buccal segment distalization in comparison with cervical headgear (CH). Thirty patients with Class II dental malocclusions were included in the study and were divided into two equal groups: the first group (10 females and 5 males, mean age 14.74 years at T1) received buccal segment distalization with ZAS and the second group (8 females and 7 males, mean age 15.26 years at T1) with CH. The skeletal, dental, and soft tissue changes were measured on cephalograms obtained before (T1) and after (T2) distalization, and these changes were statistically evaluated using a repeated measures analysis of variance, Mann-Whitney U-test, and Wilcoxon test. The Class II buccal segment relationship was corrected to a Class I in an average period of 9.03 +/- 0.62 months in the ZAS group and 9.00 +/- 0.76 months in the CH group. Significant distalization was observed for the posterior teeth in both groups (P < 0.001). Distal tipping of all posterior teeth occurred in the CH group (P < 0.001), but only for the molars in the ZAS group (P < 0.001). The upper incisors retroclined, overjet decreased, and the upper and lower lips retruded in both groups. The ZAS provided absolute anchorage for distalization of the maxillary posterior teeth and can be used as an aesthetic and non-compliant alternative to extraoral traction in the treatment of Class II malocclusions.

Authors+Show Affiliations

Department of Orthodontics, Başkent University, Ankara, Turkey. burcak_kaya@hotmail.comNo affiliation info availableNo affiliation info availableNo affiliation info available

Pub Type(s)

Comparative Study
Journal Article
Research Support, Non-U.S. Gov't

Language

eng

PubMed ID

19509344

Citation

Kaya, Burçak, et al. "Comparison of the Zygoma Anchorage System With Cervical Headgear in Buccal Segment Distalization." European Journal of Orthodontics, vol. 31, no. 4, 2009, pp. 417-24.
Kaya B, Arman A, Uçkan S, et al. Comparison of the zygoma anchorage system with cervical headgear in buccal segment distalization. Eur J Orthod. 2009;31(4):417-24.
Kaya, B., Arman, A., Uçkan, S., & Yazici, A. C. (2009). Comparison of the zygoma anchorage system with cervical headgear in buccal segment distalization. European Journal of Orthodontics, 31(4), 417-24. https://doi.org/10.1093/ejo/cjp016
Kaya B, et al. Comparison of the Zygoma Anchorage System With Cervical Headgear in Buccal Segment Distalization. Eur J Orthod. 2009;31(4):417-24. PubMed PMID: 19509344.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Comparison of the zygoma anchorage system with cervical headgear in buccal segment distalization. AU - Kaya,Burçak, AU - Arman,Ayça, AU - Uçkan,Sina, AU - Yazici,Ayşe Canan, Y1 - 2009/06/09/ PY - 2009/6/11/entrez PY - 2009/6/11/pubmed PY - 2009/10/30/medline SP - 417 EP - 24 JF - European journal of orthodontics JO - Eur J Orthod VL - 31 IS - 4 N2 - This prospective study aimed to evaluate the effects of the zygoma anchorage system (ZAS) in buccal segment distalization in comparison with cervical headgear (CH). Thirty patients with Class II dental malocclusions were included in the study and were divided into two equal groups: the first group (10 females and 5 males, mean age 14.74 years at T1) received buccal segment distalization with ZAS and the second group (8 females and 7 males, mean age 15.26 years at T1) with CH. The skeletal, dental, and soft tissue changes were measured on cephalograms obtained before (T1) and after (T2) distalization, and these changes were statistically evaluated using a repeated measures analysis of variance, Mann-Whitney U-test, and Wilcoxon test. The Class II buccal segment relationship was corrected to a Class I in an average period of 9.03 +/- 0.62 months in the ZAS group and 9.00 +/- 0.76 months in the CH group. Significant distalization was observed for the posterior teeth in both groups (P < 0.001). Distal tipping of all posterior teeth occurred in the CH group (P < 0.001), but only for the molars in the ZAS group (P < 0.001). The upper incisors retroclined, overjet decreased, and the upper and lower lips retruded in both groups. The ZAS provided absolute anchorage for distalization of the maxillary posterior teeth and can be used as an aesthetic and non-compliant alternative to extraoral traction in the treatment of Class II malocclusions. SN - 1460-2210 UR - https://www.unboundmedicine.com/medline/citation/19509344/Comparison_of_the_zygoma_anchorage_system_with_cervical_headgear_in_buccal_segment_distalization_ L2 - https://academic.oup.com/ejo/article-lookup/doi/10.1093/ejo/cjp016 DB - PRIME DP - Unbound Medicine ER -