Please use this identifier to cite or link to this item: https://doi.org/10.1016/j.wear.2006.03.035
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dc.titleIn vitro frictional behavior and wear patterns between contemporary and aesthetic composite orthodontic brackets and archwires
dc.contributor.authorSadique, S.E.
dc.contributor.authorRamakrishna, S.
dc.contributor.authorBatchelor, A.W.
dc.contributor.authorBing, C.H.
dc.date.accessioned2014-06-17T06:24:05Z
dc.date.available2014-06-17T06:24:05Z
dc.date.issued2006-11-30
dc.identifier.citationSadique, S.E., Ramakrishna, S., Batchelor, A.W., Bing, C.H. (2006-11-30). In vitro frictional behavior and wear patterns between contemporary and aesthetic composite orthodontic brackets and archwires. Wear 261 (10) : 1121-1139. ScholarBank@NUS Repository. https://doi.org/10.1016/j.wear.2006.03.035
dc.identifier.issn00431648
dc.identifier.urihttp://scholarbank.nus.edu.sg/handle/10635/60512
dc.description.abstractThis study evaluates the effects of surface roughness, saliva and bracket materials on in vitro frictional resistance of contemporary and aesthetic orthodontic brackets during the sliding of archwires against elastomeric ligature. Eight various brackets were investigated together with stainless steel (SS) archwires of several shapes. The sliding force involved in a ligated bracket-archwire combination was measured in an Instron by a self-designed jig. The interfaces were also examined using scanning electron microscope (SEM) to simulate sliding mechanics and abrasive/adhesive wear of the bottom surfaces of the bracket slots, which were observed under dry condition. Round SS archwires (SRO-OR) demonstrated the lower frictional force compared to coated round SS archwire (SRO-AW) and the flat SS archwire (rectangular and square) surfaces for most of the brackets. Braided composite bracket without a metal slot had the least resistance when sliding with SRO-OR archwire whilst the composite bracket (Spirit MB) with a metal slot demonstrated the lower resistance. Ceramic bracket (Inspire) without a metal slot, which also reflected severe wear patterns produced a significantly larger frictional force for SRO-AW. The presence of saliva had a consistent effect in increasing the friction, which counters the inconsistency reported in the literature. The soft-coated surface of SRO-AW archwire confirms sliding difficulty in sliding on the hard surface of bracket slot. A smoother surface correlates with a lower frictional force according to the surface roughness values. © 2006 Elsevier B.V. All rights reserved.
dc.description.urihttp://libproxy1.nus.edu.sg/login?url=http://dx.doi.org/10.1016/j.wear.2006.03.035
dc.sourceScopus
dc.subjectAbrasive wear
dc.subjectAesthetic
dc.subjectBraided composite bracket
dc.subjectCoated archwire
dc.subjectSaliva
dc.subjectSurface roughness
dc.typeArticle
dc.contributor.departmentMECHANICAL ENGINEERING
dc.description.doi10.1016/j.wear.2006.03.035
dc.description.sourcetitleWear
dc.description.volume261
dc.description.issue10
dc.description.page1121-1139
dc.description.codenWEARA
dc.identifier.isiut000242632600009
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