title: Influences of archwire size and ligation method on the force magnitude delivered by nickel-titanium alloy archwires in a simulation of mandibular right lateral incisor linguoversion.
abstract: The present study investigated the influence of archwire size and ligation method on the force magnitude delivered by nickel-titanium alloy archwires to 4 incisor brackets (42, 41, 31, and 32) in a simulation of mandibular right lateral incisor linguoversion. The force delivered by 0.014 and 0.016 inch nickel-titanium alloy archwires was measured using a newly developed multi-sensor measuring system and the mean force magnitudes were compared between different archwire sizes when using conventional ligation (CL) with elastic modules or self-ligating (SL) brackets by three-way ANOVA and post-hoc Bonferroni's tests. The mean force magnitudes for the brackets were significantly decreased in the order of 42, 41, 31, and 32 (p<0.01). The force magnitude was significantly larger in CL than SL at 42, 31, and 32 (p<0.05). In conclusion, the ligation method affected the force magnitude at 4 incisor brackets. Despite the ligation method, archwire size affected the force magnitude from 42 to 31.
authors.affiliation: Department of Orthodontics, The Nippon Dental University School of Life Dentistry at Tokyo.
authors.forename: Keisuke
authors.initials: K
authors.lastname: Tochigi
authors.forename: Souichiro
authors.initials: S
authors.lastname: Oda
authors.forename: Kazuhito
authors.initials: K
authors.lastname: Arai
mesh_terms: D003799:Dental Stress Analysis; D055119:Elastic Modulus; D006801:Humans; D066298:In Vitro Techniques; D007180:Incisor; D008334:Mandible; D008422:Materials Testing; D009532:Nickel; D016382:Orthodontic Appliance Design; D016910:Orthodontic Brackets; D009969:Orthodontic Wires; D013499:Surface Properties; D014025:Titanium
chemical_list: C040654:titanium nickelide; D009532:Nickel; D014025:Titanium