Surface Roughness of Composite Filling Materials

Abstract

Seven commercial composite filling materials were studied as regards 1) differences in their ability to take a smooth polish as measured by an electronic roughness gauge and 2) their relative loss in smoothness due to toothbrushing. A series of test formulations indicated that polishability and ability to retain a good polish are interrelated and are functions of filler particle size and filler hardness. Optimization in the filler particles from the point of view of polishability also results in improved wear resistance to toothbrushing.

Data acquisition variability using profilometry to produce accurate mean total volumetric wear and mean maximum wear depth measurements for the OHSU oral wear simulator

“…Since the first in vitro resin-based composite (RBC) wear studies were published in 1975 [1,2], there has been considerable interest in the wear performance of RBCs in the dental literature. A pubmed enquiry using the identifiable Medical Subject Headings of 'dentistry AND wear AND resin composite' resulted in an average of 40 manuscripts published annually (from 2008 onwards) and herein lies the problem.…”

An approach to understanding tribological behaviour of dental composites through volumetric wear loss and wear mechanism determination; beyond material ranking

“…The assessment of the wear performance of dental resin-based composite (RBC) restoratives has been determined frequently in the dental literature since the first in-vitro studies were published [1][2]. Today using the identifiable Medical Subject Headings (MeSHs) of 'dentistry AND wear', almost 2000 manuscripts have been published in the dental literature in the last in the last 10 years.…”