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Journal of Orofacial Orthopedics / Fortschritte der Kieferorthopädie

Published in:

01-05-2014 | Original article

Zygomatic mini-implant for Class II correction in growing patients

Authors: M.M. El-Dawlatly, A.M. Abou-EL-Ezz, F.A. El-Sharaby, Y.A. Mostafa, B.D.S., FDSRCS (Ed), M.Sc., Ph.D.

Published in: Journal of Orofacial Orthopedics / Fortschritte der Kieferorthopädie | Issue 3/2014

Abstract

Objective

The correction of some Angle Class II malocclusions requires distalization of the upper first molars via an induced orthopedic effect. In the present study, we tested the potential of using a mini-implant to achieve a modified zygomatic anchorage system for Class II correction.

Materials and methods

Our study comprised 10 treated and 10 control Class II growing female subjects aged 10–12 years. Orthodontic mini-implants were placed in the zygomatic buttress to act as anchorage for the distalization. The follow-up period was 6 months; treatment changes were assessed by cone beam CT scans.

Results

Compared to the control group, the treatment group showed significant retrusion of point A, anti-clockwise rotation of the maxillary plane, and a mean molar distalization of 2.92 ± 0.69 mm with no extrusion, no tipping or buccal rolling. There was significant upper incisor intrusion (1.89 ± 0.84 mm) with no changes in incisor inclination. No change in the mandibular plane angle was detected.

Conclusion

Use of this technique allowed Class II correction with concomitant reduction in the visible gingiva in the treated subjects without the adverse effects experienced with other appliances.

American Association of Orthodontists Bulletin (1982) Preliminary results of headgear survey. Bulletin 1:2

Arat ZM, Tuerkkahraman H, English JD et al (2010) Longitudinal growth changes of the cranial base from puberty to adulthood. Angle Orthod 80:725–732CrossRef

Arbuckle GR, Nelson CL, Roberts WE (1991) Osseointegrated implants and orthodontics. Oral Maxillofac Surg Clin North Am 3:903–919

Atac AT, Erdem D (2007) Effects of three-dimentional biometric maxillary distalizing arches and cervical headgear on dentofacial structures. Eur J Orthod 29:52–59CrossRef

Chatzigianni A, Halazonetis DJ (2009) Geometric morphometric evaluation of cervical vertebrae shape and its relationship to skeletal maturation. Am J Orthod Dentofacial Orthop 136:481.e1–481.e9PubMedCrossRef

Deguchi T, Murakami T, Kuroda S et al (2008) Comparison of the intrusion effects on the maxillary incisors between implant anchorage and J-hook headgear. Am J Orthod Dentofacial Orthop 133:654–660PubMedCrossRef

Egolf RJ, Begole EA, Upshaw HS (1990) Factors associated with orthodontic patient compliance with intraoral elastic and headgear wear. Am J Orthod Dentofacial Orthop 97:336–348PubMedCrossRef

Erverdi N, Acar A (2005) Zygomatic Anchorage for en masse retraction in the treatment of severe class II division 1. Angle Orthod 75:483–490PubMed

Erverdi N, Usumez S, Solak A, Koldas T (2007) Noncompliance open-bite treatment with zygomatic anchorage. Angle Orthod 77:986–990PubMedCrossRef

10.

Freitas MR, Lima DV, Freitas KM et al (2008) Cephalometric evaluation of Class II malocclusion treatment with cervical headgear and mandibular fixed appliances. Eur J Orthod 30:477–482PubMedCrossRef

11.

Gandini LG, Gandini MR, Martins JC, Del-Santo M (2001) Effects of cervical headgear and edgewise appliances on growing patients. Am J Orthod Dentofacial Orthop 119:531–539PubMedCrossRef

12.

Gelgor IE, Buyukyilmaz T, Karaman AI et al (2004) Intraosseous screw—supported upper molar distalization. Angle Orthod 74:838–850PubMed

13.

Grauer D, Cevidanes LS, Proffit WR (2009) Working with DICOM craniofacial images. Am J Orthod Dentofacial Orthop 136:460–470PubMedCentralPubMedCrossRef

14.

Holberg C, Holberg N, Rudzki-Janson I (2008) Sutural strain in orthopedic headgear therapy. Am J Orthod Dentofacial Orthop 134:53–59PubMedCrossRef

15.

Jung BA, Yildizhan F, Wehrbein H (2008) Bone-to-implant contact of orthodontic implants in humans—a histomorphometric investigation. Eur J Orthod 30:552–557PubMedCrossRef

16.

Kaya B, Arman A, Uckan S, Yazici AC (2009) Comparison of the zygoma anchorage system with cervical headgear in buccal segment distalization. Eur J Orthod 31:417–424PubMedCrossRef

17.

Keles A, Erverdi N, Sezen S (2003) Bodily distalization of molars with absolute anchorage. Angle Orthod 73:471–482PubMed

18.

Kim S, Lee S, Cho I et al (2009) Rotational resistance of surface-treated mini-implants. Angle Orthod 79:899–907PubMedCrossRef

19.

Kircelli BH, Pektas Z, Kircelli C (2006) Maxillary molar distalization with a bone-anchored pendulum appliance. Angle Orthod 76:650–659PubMed

20.

Lim S, Ki-Hong R (2008) Distal movement of maxillary molars using a lever-arm and mini-implant system. Angle Orthod 78:167–175PubMedCrossRef

21.

Liou E, Chen P, Wang Y, Lin JC (2007) A computed tomographic image study on the thickness of the infrazygomatic crest of the maxilla and its clinical implications for miniscrew insertion. Am J Orthod Dentofacial Orthop 131:352–356PubMedCrossRef

22.

Ludlow JB, Ivanovic M (2008) Comparative dosimetry of dental CBCT devices and 64-slice CT for oral and maxillofacial radiology. Oral Surg Oral Med Oral Pathol Oral Radiol Endod 106(1):106–114PubMedCrossRef

23.

Mauricio BR, Camilli JA, Francischone CR et al (2005) Zygomatic bone: anatomic bases for osseointegrated implant anchorage. Int J Oral Maxillofac Implants 20:441–447

24.

Nur M, Bayram M, Pampu A (2010) Zygoma-gear appliance for intraoral upper molar distalization. Korean J Orthod 40:195–206CrossRef

25.

Taner T, Yukay F, Pehlivanoglu M, Caki-rer B (2003) A comparative analysis of maxillary tooth movement produced by cervical headgear and Pend-X appliance. Angle Orthod 73:686–691PubMed

26.

Terajima M, Yanagita N, Ozeki K et al (2008) Three dimensional analysis system for orthognathic surgery patients with jaw deformities. Am J Orthod Dentofacial Orthop 134:100–111PubMedCrossRef

27.

Trakyali G, Sayinsu K, Muezzinoglu A, Arun T (2008) Conscious hypnosis as a method for patient motivation in cervical headgear wear—a pilot study. Eur J Orthod 30:147–152PubMedCrossRef

28.

Umemori M, Sugawara J, Mitani H et al (1999) Skeletal anchorage system for open-bite correction. Am J Orthod Dentofacial Orthop 115:166–174PubMedCrossRef

29.

Veziroglu F, Uckan S, Ozden U, Arman A (2008) Stability of zygomatic plate-screw orthodontic anchorage system A finite element analysis. Angle Orthod 78:902–907PubMedCrossRef

30.

Zentner A, Sergl H, Filippidis G (1996) A holographic study of the variation in bone deformations resulting from different headgear forces in a macerated human skull. Angle Orthod 66:463–472PubMed

Title: Zygomatic mini-implant for Class II correction in growing patients
Authors: M.M. El-Dawlatly
A.M. Abou-EL-Ezz
F.A. El-Sharaby
Y.A. Mostafa, B.D.S., FDSRCS (Ed), M.Sc., Ph.D.
Publication date: 01-05-2014
Publisher: Springer Berlin Heidelberg
Published in: Journal of Orofacial Orthopedics / Fortschritte der Kieferorthopädie / Issue 3/2014
Print ISSN: 1434-5293
Electronic ISSN: 1615-6714
DOI: https://doi.org/10.1007/s00056-014-0214-z

At a glance: The STEP trials

Springer Medicine

Zygomatic mini-implant for Class II correction in growing patients

Abstract

Objective

Materials and methods

Results

Conclusion

At a glance: The STEP trials

Springer Medicine

Abstract

Objective

Materials and methods

Results

Conclusion

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