Clinical longevity of extensive direct resin composite restorations after amalgam replacement with a mean follow-up of 15 years.

Objectives: The aim of this retrospective clinical study was to determine the survival of extensive direct resin composite restorations after amalgam replacement on vital molars and premolars after a mean observation period of 15 years.

Methods: Between January 2007 and September 2013, a total of 117 extensive cusp replacing direct resin composite restorations were placed in 88 patients in a general dental practice. These were indicated for replacement of existing amalgam restorations.

Clinical longevity of extensive direct composite restorations in amalgam replacement: up to 3.5 years follow-up.

Objectives: This prospective clinical trial evaluated the longevity of direct resin composite (DRC) restorations made on stained dentin that is exposed upon removal of existing amalgam restorations in extensive cavities with severely reduced macro-mechanical retention for amalgam replacement.

Methods: Between January 2007 and September 2013, a total of 88 patients (57 women, 31 men; mean age: 51.6 years old) received extensive cusp replacing DRCs (n=118) in the posterior teeth.

Staining of dentin from amalgam corrosion is induced by demineralization.

Purpose: To evaluate the effect of artificial demineralization upon color change of dentin in contact with dental amalgam.

Methods: Sound human molars (n = 34) were embedded in resin and coronal enamel was removed. Dentin was exposed to artificial caries gel (pH 5.

Penetration of amalgam constituents into dentine.

Objectives: Amalgam restorations are replaced by adhesively placed composite resin restorations at an increasing rate. After the removal of amalgam dentine often shows marked dark discoloration that is attributed to the penetration of corrosion products from overlying amalgams. It is questioned whether penetration of metals into dentine affects the dentine as a substrate for adhesive procedures.

Clinical failure of class-II restorations of a highly viscous glass-ionomer material over a 6-year period: a retrospective study.

Objectives: The aim of this retrospective clinical study was to evaluate the performance of high-viscosity glass-ionomer cement (GIC) class-II restorations over 6 years of clinical service.

Methods: All class-II GIC restorations made in 1996 and 1997, in regular attending adult patients of a general dental practice were selected. Restorations made for temporary function were excluded, as were those restorations not made using the main study material: Fuji IX GP (GC).