title: A modified uprighting spring for use in edgewise system.
abstract: One of the most powerful mechanics for 2nd order correction is uprighting spring. Unfortunately, the vertical tube for inserting the uprighting spring is not included in the majority of commercially available edgewise bracket systems. This article presents a simple method for inserting the uprighting spring in the horizontal slot of the bracket.
authors.affiliation: Department of Orthodontics/Dental Research Center, Tehran University of Medical Sciences, Tehran, Iran.
authors.forename: Hosseinzadeh Nik
authors.initials: HN
authors.lastname: Tahereh
authors.forename: Seyed Amir Reza Fatahi
authors.initials: SA
authors.lastname: Meybodi
mesh_terms: D003722:Dental Alloys / Q000737:chemistry; D006801:Humans; D016382:Orthodontic Appliance Design; D016910:Orthodontic Brackets; D009969:Orthodontic Wires; D013193:Stainless Steel / Q000737:chemistry; D013314:Stress, Mechanical; D013499:Surface Properties; D014087:Tooth Movement Techniques / Q000295:instrumentation*
chemical_list: D003722:Dental Alloys; D013193:Stainless Steel