Author : Lori Lynn Tima
Publisher :
ISBN 13 :
Total Pages : 52 pages
Book Rating : 4.:/5 (911 download)
Book Synopsis Intraoral Corrosion of Self-ligating Metallic Brackets and Archwires and the Effect on Friction by : Lori Lynn Tima
Download or read book Intraoral Corrosion of Self-ligating Metallic Brackets and Archwires and the Effect on Friction written by Lori Lynn Tima and published by . This book was released on 2014 with total page 52 pages. Available in PDF, EPUB and Kindle. Book excerpt: The purpose of this study was to investigate how the frictional coefficient was affected due to intraoral use. A secondary aim of this study was to determine whether or not there was a relationship between corrosion of orthodontic alloys and friction via scanning electron microscopic qualitative analysis. Orthodontic brackets and 0.019 x 0.025 inch stainless steel archwires were collected and divided into three groups of n=10: used bracket and used wires (UBUW), used brackets and new wires (UBNW), and new brackets and new wires (NBNW). 'New' materials were as-received from the manufacturer, and 'used' materials were clinically used bracket and wires collected from patients following orthodontic treatment. Archwires were pulled through bracket slots at a rate of 0.5mm/min while friction forces were measured. Following a cleaning process, the surface topography of the bracket slots was examined under a scanning electron microscope (SEM). Based on a 1-factor MANOVA, there was no significant group effect (all p>0.05) on frictional forces. Partial eta squared values indicated that intraoral exposure had only a small effect on frictional forces (