title: Influence of bio-lubricants on the orthodontic friction.
abstract: The Friction force of Stainless Steel (SS) and Nickel-Titanium (Ni-Ti) rectangular archwires against stainless steel brackets was investigated. Two types of brackets were used namely: Self-ligating brackets (SLB) and conventional brackets (CB). The friction tests were conducted on an adequate developed device under dry and lubricated conditions. Human saliva, olive oil, Aloe Vera oil, sesame oil and sunflower oil were used as bio-lubricants. The friction force was examined as a function of the ligation method and oil temperature. It is found that under oil lubrication, the friction behavior in the archwire/bracket assembly were the best. The SLB ligation was better than the conventional ligation system. The enhancement of the frictional behavior with natural oils was linked to their main components: fatty acids.
authors.affiliation: Laboratoire de Génie Mécanique (LGM), ENIM, Monastir University, Rue Ibn Eljazzar, 5019, Tunisia.
authors.forename: A
authors.initials: A
authors.lastname: Dridi
authors.affiliation: Laboratoire de Génie des Matériaux et Environnement (LGME), ENIS, Sfax University, B.P.W. 1173-3038, Tunisia. Electronic address: walidbensalah@gmail.com.
authors.forename: W
authors.initials: W
authors.lastname: Bensalah
authors.affiliation: Laboratoire de Génie Mécanique (LGM), ENIM, Monastir University, Rue Ibn Eljazzar, 5019, Tunisia.
authors.forename: S
authors.initials: S
authors.lastname: Mezlini
authors.affiliation: Département d'orthodontie, Faculté de Médecine Dentaire de Monastir, Monastir University, Avenue Avicenne, 5019, Tunisia.
authors.forename: S
authors.initials: S
authors.lastname: Tobji
authors.affiliation: Laboratoire de Génie Mécanique (LGM), ENIM, Monastir University, Rue Ibn Eljazzar, 5019, Tunisia.
authors.forename: M
authors.initials: M
authors.lastname: Zidi
mesh_terms: D003722:Dental Alloys; D003799:Dental Stress Analysis; D006801:Humans; D054327:Lubricants / Q000737:chemistry*; D008422:Materials Testing; D009532:Nickel; D016382:Orthodontic Appliance Design; D016910:Orthodontic Brackets; D000070297:Orthodontic Friction; D009969:Orthodontic Wires; D010938:Plant Oils / Q000737:chemistry; D012463:Saliva / Q000737:chemistry; D013193:Stainless Steel; D014025:Titanium
chemical_list: D003722:Dental Alloys; D054327:Lubricants; D010938:Plant Oils; D013193:Stainless Steel; D009532:Nickel; D014025:Titanium
keywords: Archwire/bracket; Friction force; Natural oils; Orthodontic