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PubMed1979

[Comparative study on the abrasion behavior of composite filling materials].

Twenty-two commercially available composites, a new resin without inorganic filler and two amalgams have been investigated to compare their abrasive behaviour. In laboratory tests, an abrasion model of tooth against filling has been simulated. The results indicate a dependence of the abrasive behaviour on the type of filler in the different composites. Composites with quartz as filler have the greatest resistance to abrasion, whereas those with lithium-aluminium-silicate show the strongest abrasion. Mean abrasion values are obtained for the composites with barium-glass or a mixture of barium-glass and quartz as filler. The resin and the two amalgams have abrasion values comparable to the abrasive resistant composites.

Composite Resins↗
PubMedDate not supplied

Effect of toothbrush variables on wear of dentin produced by four abrasives.

A study was conducted to explore the effect of brush brand, brush hardness, and the concentration of abrasive on the wear of human dentin by four dentifrice abrasives. The two hard brushes produced similar and high levels of abrasion, whereas the two medium brushes of the same brands gave dissimilar and lower levels of abrasion. Dilution changed the ranking of two of the four abrasives.

Aluminum↗
PubMed1997

[Tooth wear. Classification and terminology].

Tooth wear rarely occurs as a result of one factor alone. Non-carious loss of tooth tissue can be subdivided into attrition, demastication, abrasion, fractionation, and erosion. Clinically, the tooth tissue loss may result from any combination of these types of wear. The first essential principle in the management of tooth wear is, as far as possible, to remove the cause. Secondly, restoration may be indicated.

Adult↗
PubMed1986

Dentifrice abrasivity. The use of laser light for determination of the abrasive properties of different silicas. An in vitro study.

The abrasive properties of five different silicon dioxides were investigated using laser reflexion. The substances were milled, amorphous silica gels of which four were commercially available dentifrice ingredients (Syloblanc) and one an experimental product. The abrasion process was carried out on acrylic plates in a brushing machine using two series of slurries of the substances, with and without sodium lauryl sulphate. Significant differences in abrasivity of the substances were observed. When sodium lauryl sulphate was included, the rate of abrasion decreased for the Syloblanc substances but increased for the experimental substance. The contrast was primarily explained by the capability of the different substances to form stable foams owing to their thickening properties. The investigation confirmed that silicon dioxides exhibit a wide range of abrasivity and proved that sodium lauryl sulphate influenced the abrasion process.

Dentifrices↗