Please use this identifier to cite or link to this item: https://ir.swu.ac.th/jspui/handle/123456789/14705
ชื่อเรื่อง: Determination of surface and subsurface fatigue damage in dental composites
ผู้แต่ง: Padipatvuthikul P.
Jarad F.D.
Mair L.
Keywords: Composites
Cyclic compression
Dental filling
Fatigue
Filler particles
Filling materials
Image analysis software
Microhardness tests
Resin-based composite
Silver nitrates
Sub-surface damage
Surface deformation
Surface microhardness
Vickers
Deformation
Dental composites
Dental prostheses
Dentistry
Filling
Image analysis
Microhardness
Resins
Silver
Silver alloys
Surfaces
Fatigue damage
วันที่เผยแพร่: 2010
บทคัดย่อ: Dental filling materials are subjected to cyclic compression in the mouth. Nine resin-based composite filling materials were subjected to 2000 compression cycles between either 0 and 12 kg, or 0 and 40 kg. Surface deformation was measured as the diameter of the compression scar and surface microhardness determined by a Vickers' microhardness test at 4 sites around the scar. Subsurface damage was stained with silver nitrate and the area of stain determined by image analysis software. Subsurface microhardness was measured at 4 sites around the stained zone. Surface deformation at 12 kg was inversely proportional to the surface microhardness at 12 kg. At both loads subsurface damage was directly proportional to the subsurface microhardness. Samples with small filler particles experienced less subsurface damage than those with larger particles. Silver nitrate staining was found to be a useful method for identifying subsurface damage. © 2010 Elsevier B.V. All rights reserved.
URI: https://ir.swu.ac.th/jspui/handle/123456789/14705
https://www.scopus.com/inward/record.uri?eid=2-s2.0-77951128635&doi=10.1016%2fj.wear.2010.02.025&partnerID=40&md5=0c6fdb32a523caf89c97c995e25e9399
ISSN: 431648
Appears in Collections:Scopus 1983-2021

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