Effect of Different Types of Toothpaste on the Frictional Resistance Between Orthodontic Stainless Steel Brackets and Wires

Objectives: the purpose of this study was to investigate the effect of different types of toothpaste on the frictional resistance between stainless steel brackets and archwires.materials and methods: ninety stainless steel orthodontic brackets with stainless steel wires were bonded to bovine teeth and were divided into 6 groups for application of the following toothpastes: colgate® total® advanced whitening, colgate® total® pro gum health, colgate® anticavity, ortho.kin®, and sunstar gum® ortho toothpastes. no toothpaste was applied in the control group. each group was brushed by a brushing machine with the use of the designated solution for 4.5 minutes. the frictional force was measured in a universal testing machine with a crosshead speed of 10 mm/minute over a 5-mm archwire. data were analyzed using one-way analysis of variance (anova) at the 0.05 significance level.results: the frictional resistance values of ortho.kin® and gum® ortho toothpastes and the control group were not significantly different (p>0.05). however, there were significant differences between the frictional resistance values of colgate® total® pro gum health and colgate® anticavity toothpastes with that of the control group (p<0.05). the highest and lowest frictional resistance values were related to colgate® total® pro gum health toothpaste and the control group, respectively.conclusions: among the evaluated toothpastes, the orthodontic toothpastes did not increase the frictional resistance between the orthodontic stainless steel brackets and wires.