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Efficiency of a skeletonized distal jet appliance supported by miniscrew anchorage for noncompliance maxillary molar distalization.
Am J Orthod Dentofacial Orthop. 2009 Oct; 136(4):578-86.AJ

Abstract

INTRODUCTION

Conventional anchorage appliances rely exclusively on intraoral anchorage for noncompliance molar distalization. The partial coverage of the palate, in particular, often results in compromised oral hygiene. An innovative alternative combines a skeletonized distal jet appliance with 2 paramedian miniscrews for additional anchorage. The objectives of this study were to investigate the suitability of the skeletonized distal jet for translatory molar distalization and to check the quality of the supporting anchorage setup.

METHODS

Two paramedian miniscrews (length, 8-9 mm; diameter, 1.6 mm) were placed into the anterior area of the palate in 10 patients. Skeletonized distal jet appliances fitted with composite to the first premolars and the collars of the miniscrews were used for bilateral molar distalization, and the coil springs were activated with a distalization force of 200 cN on each side.

RESULTS

The study confirmed the suitability of the appliance for translatory molar distalization (3.92 +/- 0.53 mm) with slight mesial inward rotation (on average, 8.35 degrees +/- 7.66 degrees and 7.88 degrees +/- 5.50 degrees). The forces acting reciprocally on the anchorage setup were largely absorbed by the anchorage unit involving 2 anchorage teeth and 2 miniscrews. Significant anchorage loss, in the form of first premolar mesialization of 0.72 +/- 0.78 mm, was found.

CONCLUSIONS

The skeletonized distal jet appliance supported by additional miniscrew anchorage allows translatory molar distalization. Although the anchorage design combining 2 miniscrews at a paramedian location and the periodontium of 2 anchorage teeth does not offer the quality of stationary anchorage, it achieves greater molar distalization in total sagittal movement than conventional anchorage designs with an acrylic button.

Authors+Show Affiliations

Department of Orthodontics, University of Saarland, Homburg/Saar, Germany. Kinzinger@kfo-homburg.deNo affiliation info availableNo affiliation info availableNo affiliation info available

Pub Type(s)

Comparative Study
Journal Article

Language

eng

PubMed ID

19815162

Citation

Kinzinger, Gero S M., et al. "Efficiency of a Skeletonized Distal Jet Appliance Supported By Miniscrew Anchorage for Noncompliance Maxillary Molar Distalization." 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. 136, no. 4, 2009, pp. 578-86.
Kinzinger GS, Gülden N, Yildizhan F, et al. Efficiency of a skeletonized distal jet appliance supported by miniscrew anchorage for noncompliance maxillary molar distalization. Am J Orthod Dentofacial Orthop. 2009;136(4):578-86.
Kinzinger, G. S., Gülden, N., Yildizhan, F., & Diedrich, P. R. (2009). Efficiency of a skeletonized distal jet appliance supported by miniscrew anchorage for noncompliance maxillary molar distalization. American Journal of Orthodontics and Dentofacial Orthopedics : Official Publication of the American Association of Orthodontists, Its Constituent Societies, and the American Board of Orthodontics, 136(4), 578-86. https://doi.org/10.1016/j.ajodo.2007.10.049
Kinzinger GS, et al. Efficiency of a Skeletonized Distal Jet Appliance Supported By Miniscrew Anchorage for Noncompliance Maxillary Molar Distalization. Am J Orthod Dentofacial Orthop. 2009;136(4):578-86. PubMed PMID: 19815162.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Efficiency of a skeletonized distal jet appliance supported by miniscrew anchorage for noncompliance maxillary molar distalization. AU - Kinzinger,Gero S M, AU - Gülden,Norbert, AU - Yildizhan,Faruk, AU - Diedrich,Peter R, PY - 2007/06/01/received PY - 2007/10/01/revised PY - 2007/10/01/accepted PY - 2009/10/10/entrez PY - 2009/10/10/pubmed PY - 2009/10/30/medline SP - 578 EP - 86 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 - 136 IS - 4 N2 - INTRODUCTION: Conventional anchorage appliances rely exclusively on intraoral anchorage for noncompliance molar distalization. The partial coverage of the palate, in particular, often results in compromised oral hygiene. An innovative alternative combines a skeletonized distal jet appliance with 2 paramedian miniscrews for additional anchorage. The objectives of this study were to investigate the suitability of the skeletonized distal jet for translatory molar distalization and to check the quality of the supporting anchorage setup. METHODS: Two paramedian miniscrews (length, 8-9 mm; diameter, 1.6 mm) were placed into the anterior area of the palate in 10 patients. Skeletonized distal jet appliances fitted with composite to the first premolars and the collars of the miniscrews were used for bilateral molar distalization, and the coil springs were activated with a distalization force of 200 cN on each side. RESULTS: The study confirmed the suitability of the appliance for translatory molar distalization (3.92 +/- 0.53 mm) with slight mesial inward rotation (on average, 8.35 degrees +/- 7.66 degrees and 7.88 degrees +/- 5.50 degrees). The forces acting reciprocally on the anchorage setup were largely absorbed by the anchorage unit involving 2 anchorage teeth and 2 miniscrews. Significant anchorage loss, in the form of first premolar mesialization of 0.72 +/- 0.78 mm, was found. CONCLUSIONS: The skeletonized distal jet appliance supported by additional miniscrew anchorage allows translatory molar distalization. Although the anchorage design combining 2 miniscrews at a paramedian location and the periodontium of 2 anchorage teeth does not offer the quality of stationary anchorage, it achieves greater molar distalization in total sagittal movement than conventional anchorage designs with an acrylic button. SN - 1097-6752 UR - https://www.unboundmedicine.com/medline/citation/19815162/Efficiency_of_a_skeletonized_distal_jet_appliance_supported_by_miniscrew_anchorage_for_noncompliance_maxillary_molar_distalization_ L2 - https://linkinghub.elsevier.com/retrieve/pii/S0889-5406(09)00463-6 DB - PRIME DP - Unbound Medicine ER -