3-year clinical evaluation of a compomer, a resin-modified glass ionomer and a resin composite in Class III restorations.

PURPOSE

To evaluate and compare intra-individually a polyacid-modified resin composite, commonly called compomer (Dyract), a resin-modified glass ionomer cement (RM GIC)(Fuji II LC) and a resin composite (Pekafill) in Class III cavities.

MATERIALS AND METHODS

In 50 patients, 154 Class III restorations were placed. Most patients received one of each of the experimental materials. At baseline, 6 months, 1, 2 and 3 years the restorations were evaluated by slightly modified USPHS criteria.

RESULTS

At 3 years, 152 restorations were evaluated. Two restorations were replaced, one due to fracture and one due to secondary caries. The resin composite showed significantly better color match. A slight but still acceptable color shift and increased surface roughness was seen for the RM GIC. The compomer and the resin composite performed significantly better than the RM GIC. No postoperative sensitivity was reported and no loss of vitality was seen after use of the three different total etch techniques.