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Paper
Title

A Creative Spring Design to Force Erupt Labially Impacted Maxillary Canine Using Single Mini Implant

دوفصلنامه ارتودنسی ایران، دوره: 9، شماره: 3
Year: 1393
COI: JR_ORTHO-9-3_008
Language: EnglishView: 41
نسخه کامل این Paper ارائه نشده است و در دسترس نمی باشد

Authors

Nasrin Farhadian - Department of Orthodontic, Faculty of Dentistry, Hamadan University of Medical Sciences, Hamadan, IR Iran
Amirfarhang Miresmaeili - Department of Orthodontic, Hamadan Dental Research Center, Hamadan University of Medical Sciences, Hamadan, IR Iran
Vahid Mollabashi - Department of Orthodontic, Faculty of Dentistry, Hamadan University of Medical Sciences, Hamadan, IR Iran

Abstract:

Introduction: Complications to force eruption of impacted teeth may arise from several reasons including ankylosis, dilaceration, and/or some barriers in the eruption pathway. Treatment time prolongation without obvious clinical progress gradually decreases the patient compliance. In this paper we present a non-conventional method to forced eruption of an impacted maxillary canine. Case Presentation: A-۲۱-year old girl presented with missing of teeth No ۱۷, ۱۲, ۲۲, ۲۷, ۳۸, ۳۷, ۴۷, ۴۸ and labially impaction of both maxillary canine was prepared for treatment through apically position flap for exposure of the both canines. Using standard edgewise ۰.۱۸ appliance and conventional elastic traction the right maxillary canine erupted to its normal position after about ۱۸ months but the other tooth had not responded favorably to this technique. There was no signs of ankylosis, a titanium bone screw was placed in the labial cortical bone and mesial of the malposed canine. A spring is made of ۰.۰۱۷” × ۰.۰۲۵” SS wire with two helixes that delivered about ۱۰۰ g force and ۴۰۰ gr.mm activation moment to labial bracket on malposed canine crown. The force exerted on mini implant will be balanced with a force and moment on malposed tooth very similar to type IV Burston classification. After about ۵ months the tooth had reached to its final occlusal position. Conclusions: The appliance used for this patient brought the impacted canine into the arch without any more force on the neighbor teeth. Two point contact of the spring arm by bending the wire over the head of the mini implant made it possible to apply buccolingual crown torque.

Keywords:

Paper COI Code

This Paper COI Code is JR_ORTHO-9-3_008. Also You can use the following address to link to this article. This link is permanent and is used as an article registration confirmation in the Civilica reference:

https://civilica.com/doc/1303239/

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Farhadian, Nasrin and Miresmaeili, Amirfarhang and Mollabashi, Vahid,1393,A Creative Spring Design to Force Erupt Labially Impacted Maxillary Canine Using Single Mini Implant,https://civilica.com/doc/1303239

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Type of center: علوم پزشکی
Paper count: 3,158
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