The use of magnets to move molars distally

Gianelly, Anthony A.; Vaitaa, Algirdas S.; Thomas, William

doi:10.1016/0889-5406(89)90257-6

Cited by 150 publications

(100 citation statements)

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“…1,3,31 The role of second molars in distalization of the first molars was evaluated by many researchers and generally has been considered as a barrier in traditional means of distalization. Bondemark et al, 32 Worms et al, 33 Gianelly et al, 34 Gianelly, 35 Ten Hoeve, 36 Jeckel and Rakosi, 37 concluded that the duration of treatment would be longer, greater forces would have to be applied and more anchorage would be lost if patients had second molars. In another study, Kinzinger et al 18 investigated the role of both second and third molar eruption stages on bodily molar distalization using biomechanical analysis and concluded that a tooth bud acts on the mesial neighboring tooth like a fulcrum and that tipping of the first molars in patients in whom the second molar was still at the budding stage was thus greater.…”

Section: Discussionmentioning

confidence: 99%

Noncompliance screw supported maxillary molar distalization in a parallel manner

Nalçacı

Bıçakçı

Özan³

2010

Korean J Orthod

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Objective: Intraoral noncompliance upper molar distalization techniques have gained in popularity and have subsequently found to be successful in Class II correction. The aim of the present study was to introduce a screw supported intraoral distalization appliance and investigate its efficiency. Methods: Twenty-one subjects (11 females, 10 males; average age of 14.9 years) with Angle Class II malocclusion participated in this study. Two screws were inserted behind the incisive foramen and immediately loaded to distalize the upper first molars. An intraoral screw supported distalization appliance was used to distalize the upper molars in order to achieve a Class I molar relationship. Skeletal and dental changes were evaluated using cephalometric and three-dimensional (3D) model analysis. Results: Upper molars were distalized 3.95 mm on average and a Class I molar relationship was achieved without any anchorage loss. The upper molars were tipped only 1.

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Section: Discussionmentioning

confidence: 99%

Noncompliance screw supported maxillary molar distalization in a parallel manner

Nalçacı

Bıçakçı

Özan³

2010

Korean J Orthod

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“…[6][7][8][9][10][11][12][13][14][15][16] All these appliances do, however, also lead to anterior displacement on the anchor units and increase in overjet if not combined with skeletal anchorage. The displacement of the molars alone could not explain the marked improvement of the molar relationship seen with the lip bumper combination.…”

Section: Discussionmentioning

confidence: 99%

“…Corresponding author: Dr Marcel Korn, 328 Newbury Street, Boston, MA 02115. include molar distalization by means of different types of headgear, [2][3][4] Class II elastics, [5][6][7] and an increasing number of noncompliance appliances such as Pendulum appliances, 8,9 Jones Jig, 10 distal jets, [11][12][13] magnets, [14][15][16] and various types of Herbst appliances, 17,18 to mention only a few. As absolute anchorage cannot be obtained by any of these anchorage systems.…”

Section: Introductionmentioning

confidence: 99%

Early Treatment with a Maxillary Lip Bumper-Bite Plateau Combination

Korn

Melsen

2008

The Angle Orthodontist

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Objective: To evaluate the intra-arch displacements of the molars and the change in molar relationship following the use of a maxillary lip bumper combined with a bite plate. Materials and Methods: The material comprised study casts taken before and after the treatment of 40 consecutive patients with mixed dentition. The sagittal and transversal displacements were evaluated by a three-dimensional digitizer using the palatal rugae as an indirect fixed reference. The displacements were expressed as translation mesiodistally and buccolingually and rotation around the long axis and tipping mesiodistally. The change in molar relationship was measured to the nearest millimeter at the level of the occlusal plane. Results: The tooth movements were predominantly of distal rotation (mean, 9.7Њ; range, 6.5Њ to 26Њ) and distal tipping (mean, 5Њ; range, 5.8Њ to 18Њ). The distal displacement was a modest mean (mean, 0.3 mm; SD, 1.6 mm) and more pronounced to the buccal (mean 1.6 mm; SD, 1.5 mm). The molar relationship improved in all but four sites, and a full Class I was obtained in 65 of 80 sites. Conclusions:The early treatment with the lip bumper and bite plate can be recommended from a cost-benefit point of view.

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“…These include the repelling magnet, [1][2][3][4][5] coil springs on a continuous arch wire, 6,7 superelastic nickel-titanium arch wires, 8 coil springs on a sectional arch wire (Jones jig, [9][10][11][12][13] distal jet, [14][15][16] Keles slider 17,18 ), and springs in beta titanium alloy (pendulum, [19][20][21][22][23][24][25] K-loop, 26 intraoral bodily molar distalizer 27 ). Intraoral distal force appliances are designed to apply continuous reciprocal forces on maxillary molars, which also cause mesial reactive forces on the anterior anchoring teeth.…”

Section: Introductionmentioning

confidence: 99%

Distal Movement of Maxillary Molars Using a Lever-arm and Mini-implant System

Lim¹,

Hong²

2008

The Angle Orthodontist

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Recently, many studies have been reported on distal molar movement using temporary anchorage devices. However, the side effects of distal movement, such as distal tipping, rotation, or extrusion, are still unsolved. This article describes the use of the lever-arm and mini-implant system for controlled distal movement of maxillary molars and two clinical cases in which patients were treated with this system. Mini implants are needed to control the point of force application in the posterior area with no anchorage loss. When the length of the lever arm and the position of the mini implant are adjusted, the desired line of action of the distal force is determined with respect to the center of resistance of maxillary molars. The lever-arm and mini-implant system is useful not only for absolute anchorage, but also for three-dimensional control during distal movement of the upper molars.

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The use of magnets to move molars distally

Cited by 150 publications

References 0 publications

Noncompliance screw supported maxillary molar distalization in a parallel manner

Noncompliance screw supported maxillary molar distalization in a parallel manner

Early Treatment with a Maxillary Lip Bumper-Bite Plateau Combination

Distal Movement of Maxillary Molars Using a Lever-arm and Mini-implant System

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