Evaluation of Dentoskeletal and Profile Changes with Distal Jet in Moderate Skeletal Class II Patients: Dentoskeletal and Profile Changes with Distal Jet

Asia  Khalid; Zubair  Hassan Awaisi

doi:10.54393/pjhs.v4i06.741

Authors

Asia Khalid Department of Orthodontics, Nishtar Institute of Dentistry, Multan, Pakistan
Zubair Hassan Awaisi Department of Orthodontics, Nishtar Institute of Dentistry, Multan, Pakistan

DOI:

https://doi.org/10.54393/pjhs.v4i06.741

Keywords:

Malocclusion, Angle’s Class II, Distalization, Cephalometry, Distal Jet

Abstract

In an orthodontic treatment, upper molar distalization is mandatory to gain space in upper arch. Objective: To evaluate the nature of molar distalization & its effects on soft tissue profile, dentoalveolar structures & skeletal structures. Methods: This was a retrospective study design. 20 subjects were found to be eligible for the distalization with average age of 19.4 yrs. Only Distal jet was used for distalization and one operator was there for all the subjects. Pre and post treatment cephalograms were taken to analyze dentoalveolar & soft tissue changes. Paired sample T test was used. Results: Notable amount of molar distalization and increased lower face height was achieved. Conclusions: This study verified definite distalization of maxillary first molars using distal jet showing a better bodily movement with less tipping movement, with certain unwanted & reactionary effects on incisor position & limited effects on facial soft tissues.

References

Karad A and Chhajed S. Evaluation of treatment changes associated with maxillary molar distalization with the distal jet appliance. APOS Trends in Orthodontics. 2014 Jan; 4(1): 9-15 doi: 10.4103/2321-1407.125743. DOI: https://doi.org/10.4103/2321-1407.125743

Gianelly AA, Vaitaa AS, Thomas WM. The use of magnets to move molars distally. American Journal of Orthodontics and Dentofacial Orthopedics. 1989 Aug; 96(2): 161-7. doi: 10.1016/0889-5406(89)90257-6. DOI: https://doi.org/10.1016/0889-5406(89)90257-6

Locatelli R. Molar distalization with superelastic Ni-Ti wire. Journal of Clinical Orthodontics. 1992 May; 26(5): 277-9.

Al-Thomali Y, Basha S, Mohamed RN. Pendulum and modified pendulum appliances for maxillary molar distalization in Class II malocclusion–a systematic review. Acta Odontologica Scandinavica. 2017 Aug; 75(6): 394-401. doi: 10.1080/00016357.2017.1324636. DOI: https://doi.org/10.1080/00016357.2017.1324636

Carano A. The distal jet for upper molar distalization. Journal of Clinical Orthodontics. 1996 Jul; 30(7): 374-80.

Jones RD and White JM. Rapid Class II molar correction with an open-coil jig. Journal of Clinical Orthodontics: JCO. 1992 Oct; 26(10): 661-4.

Fortini A, Lupoli M, Giuntoli F, Franchi L. Dentoskeletal effects induced by rapid molar distalization with the first class appliance. American Journal of Orthodontics and Dentofacial Orthopedics. 2004 Jun; 125(6): 697-704. doi: 10.1016/j.ajodo.2003.06.006. DOI: https://doi.org/10.1016/j.ajodo.2003.06.006

Cassetta M, Brandetti G, Altieri F. Miniscrew-supported distal jet versus conventional distal jet appliance: A pilot study. Journal of Clinical and Experimental Dentistry. 2019 Jul; 11(7): e650. doi: 10.4317/jced.55780. DOI: https://doi.org/10.4317/jced.55780

Kinzinger GS, Gross U, Fritz UB, Diedrich PR. Anchorage quality of deciduous molars versus premolars for molar distalization with a pendulum appliance. American Journal of Orthodontics and Dentofacial Orthopedics. 2005 Mar; 127(3): 314-23. doi: 10.1016/j.ajodo.2004.09.014. DOI: https://doi.org/10.1016/j.ajodo.2004.09.014

Bolla E, Muratore F, Carano A, Bowman SJ. Evaluation of maxillary molar distalization with the distal jet: a comparison with other contemporary methods. The Angle Orthodontist. 2002 Oct; 72(5): 481-94.

Chiu PP, McNamara Jr JA, Franchi L. A comparison of two intraoral molar distalization appliances: distal jet versus pendulum. American Journal of Orthodontics and Dentofacial Orthopedics. 2005 Sep; 128(3): 353-65. doi: 10.1016/j.ajodo.2004.04.031. DOI: https://doi.org/10.1016/j.ajodo.2004.04.031

Yamada K, Kuroda S, Deguchi T, Takano-Yamamoto T, Yamashiro T. Distal movement of maxillary molars using miniscrew anchorage in the buccal interradicular region. The Angle Orthodontist. 2009 Jan; 79(1): 78-84. doi: 10.2319/020408-68.1. DOI: https://doi.org/10.2319/020408-68.1

Kilkis D, Bayram M, Celikoglu M, Nur M. Unilateral maxillary molar distalization with zygoma-gear appliance. American Journal of Orthodontics and Dentofacial Orthopedics. 2012 Aug; 142(2): e1-7. doi: 10.1016/j.ajodo.2012.02.026. DOI: https://doi.org/10.1016/j.ajodo.2012.02.026

Nalcaci R, Kocoglu-Altan AB, Bicakci AA, Ozturk F, Babacan H. A reliable method for evaluating upper molar distalization: Superimposition of three-dimensional digital models. The Korean Journal of Orthodontics. 2015 Mar; 45(2): 82-8. doi: 10.4041/kjod.2015.45.2.82. DOI: https://doi.org/10.4041/kjod.2015.45.2.82

Vilanova L, Henriques JF, Janson G, Patel MP, Reis RS, Aliaga-Del Castillo A. Class II malocclusion treatment effects with Jones Jig and Distal Jet followed by fixed appliances. The Angle Orthodontist. 2018 Jan; 88(1): 10-9. doi: 10.2319/022517-142.1. DOI: https://doi.org/10.2319/022517-142.1

Gianelly AA. Distal movement of the maxillary molars. American Journal of Orthodontics and Dentofacial Orthopedics. 1998 Jul; 114(1): 66-72. doi: 10.1016/S0889-5406(98)70240-9. DOI: https://doi.org/10.1016/S0889-5406(98)70240-9

Ngantung V, Nanda RS, Bowman SJ. Posttreatment evaluation of the distal jet appliance. American Journal of Orthodontics and Dentofacial Orthopedics. 2001 Aug; 120(2): 178-85. doi: 10.1067/mod.2001.114645. DOI: https://doi.org/10.1067/mod.2001.114645

Sugawara J, Kanzaki R, Takahashi I, Nagasaka H, Nanda R. Distal movement of maxillary molars in nongrowing patients with the skeletal anchorage system. American Journal of Orthodontics and Dentofacial Orthopedics. 2006 Jun; 129(6): 723-33. doi: 10.1016/j.ajodo.2005.08.036. DOI: https://doi.org/10.1016/j.ajodo.2005.08.036

Mah SJ, Kim JE, Ahn EJ, Nam JH, Kim JY, Kang YG. Analysis of midpalatal miniscrew-assisted maxillary molar distalization patterns with simultaneous use of fixed appliances: A preliminary study. The Korean Journal of Orthodontics. 2016 Jan; 46(1): 55-61. doi: 10.4041/kjod.2016.46.1.55. DOI: https://doi.org/10.4041/kjod.2016.46.1.55

Graber TM. Extraoral force—facts and fallacies. American Journal of Orthodontics. 1955 Jul; 41(7): 490-505. doi: 10.1016/0002-9416(55)90143-3. DOI: https://doi.org/10.1016/0002-9416(55)90143-3