This is a multicentre, controlled clinical study conducted in Croatia, Italy, Turkey and Serbia. Eligible participants are all adults aged 18 or over with indication of restorative treatment on vital teeth in posterior molar region, limited to two surface in a healthy subjects. Exclusion criteria are presence of full dentures or crowns and bridges in occlusal contact with teeth indicated for restorative treatment, severe bruxing and unstable physiological or medical health, pregnancy and lactation, radiation therapy or using drugs. Each patient is receiving two restorative treatment (GIC-EQUIA Forte and composite resin material Tetric EvoCeram) each of which will be localized on molar teeth on either side of the mouth. Two independent examiners will evaluate the restorations at each site one week after placement and at one, two, three, four and five years according to the FDI criteria. After, three and five years recall, impressions of both restorations is taken and the casts is analysed by a 3D laser scanner.