title: Measurement of composite resin filler particles by using scanning electron microscopy and digital imaging.
abstract: Composite resins are routinely classified on the basis of filler particle size for purposes of research, clinical applications, and communications. The size and characterizations of filler particles have also been considered a significant factor in the rate of wear of composites. Making valid correlations between the filler particles within a composite and wear requires accuracy of filler particle size and characterization. This study was initiated to examine two methods that would (1) qualify the filler particle content of a composite resin and (2) quantify the number, size, and the area occupied by the filler particles in composite resins. Three composite resins, BIS-FIL I, Visio-Fil, and Ful-Fil, were selected as the materials to be examined, on the basis of their published composite classification type as fine particle. The findings demonstrated that scientific methods are available to examine qualitatively and measure quantitatively the composite resin filler particles in terms of their numbers, sizes, and area occupied by use of a scanning electron microscope and digital imaging. Significant differences in the filler particle numbers, sizes, and the area occupied were found for the three composite resins in this study that were classified as fine particle.
authors: Department of Prosthodontics, University of Michigan, School of Dentistry, Ann Arbor.
authors: M J
authors: MJ
authors: Jaarda
authors: B R
authors: BR
authors: Lang
authors: R F
authors: RF
authors: Wang
authors: C A
authors: CA
authors: Edwards
mesh_terms: D000096:Acetone; D017438:Bisphenol A-Glycidyl Methacrylate; D055598:Chemical Phenomena; D002627:Chemistry, Physical; D002725:Chloroform; D003188:Composite Resins / Q000737:chemistry*; D017220:Dentin-Bonding Agents / Q000737:chemistry; D000431:Ethanol; D007091:Image Processing, Computer-Assisted; D008855:Microscopy, Electron, Scanning; D010316:Particle Size; D011109:Polymethacrylic Acids / Q000737:chemistry; D011140:Polyurethanes / Q000737:chemistry; D019279:Resin Cements; D012815:Signal Processing, Computer-Assisted; D013499:Surface Properties
chemical_list: D003188:Composite Resins; D017220:Dentin-Bonding Agents; D011109:Polymethacrylic Acids; D011140:Polyurethanes; D019279:Resin Cements; C078905:Bisfil; D000096:Acetone; D000431:Ethanol; D017438:Bisphenol A-Glycidyl Methacrylate; D002725:Chloroform; C069717:Viso-Fil; C046503:formula F 70