An evaluation of finishing instruments for an anterior and a posterior composite.
The same finishing instruments and techniques revealed no significant differences in the surface roughness of the anterior and posterior composites. The smoothest surface was achieved with Mylar strips; the smoothest instrumented surface was achieved with a series of abrasive disks, but a fine diamond bur with 25 micron particles produced the roughest surface. However, an x-fine diamond with 15 micron particles produced a surface smoothness superior to that produced with a white stone and similar to the smoothness produced with a carbide bur and rubber point. Diamond finishing with slow speed produced a somewhat smoother finish than with high speed. SEM analysis revealed qualitative differences in surface texture even though the average roughness was not shown to differ.
Pratten
D H
DH
Department of Restorative Dentistry, Medical College of Virginia, School of Dentistry, Richmond.
Johnson
G H
GH
D017438:Bisphenol A-Glycidyl Methacrylate; D003188:Composite Resins; D003775:Dental Polishing / Q000295:instrumentation*; D005069:Evaluation Studies as Topic; D005898:Glass; D008689:Methacrylates; D008855:Microscopy, Electron, Scanning; D012822:Silicon Dioxide; D013324:Strontium; D013499:Surface Properties
D003188:Composite Resins; D008689:Methacrylates; D017438:Bisphenol A-Glycidyl Methacrylate; D012822:Silicon Dioxide; D013324:Strontium