engleski

A 3-year Multicentre Clinical Trial in Split-mouth: Glass Hybrid System vs. Resin Composite

Aim: The objective of this study was to compare the clinical performance of a glass hybrid restorative system, EQUIA Forte, with a nano-hybrid resin com- posite, Tetric EvoCeram, in moderate to large class II cavities after 3-year follow up. Materials and Methods: A total of 360 two-surface restorations were placed in four dental schools: Zagreb, Croatia ; Milan, Italy ; Izmir, Turkey, and Belgrade, Serbia. Patients (n=180) in need of 2 restorations in the molar region of the same jaw received one glass hybrid restoration (EQUIA Forte, GC) and one resin composite restoration (Tetric EvoCeram, Ivoclar Vivadent). After the cavity preparation, restorations were placed in bulk for the glass hybrid material and in 2-mm incremental layers for the resin composite with a two-step self-adhesive system. Clinical performances were assessed by two independent evaluators in each center according to the FDI-2 criteria for aesthetic, functional and biological properties at the baseline, after one, two and three years. To test the performance of the restorative materials, equality of survival curves was tested using a stratified test for matched pairs and the FDI-2 criteria were compared using a sign test. Results: No significant differences in survival rates between EQUIA Forte (90.8%) and Tetric EvoCeram (93.1%) were ob- served at the 3-year recall (p>0.05). No statistical differences could be detected between the properties of glass hybrid restor- ative system and the nano-hybrid resin composite except for one of the functional properties- fracture of the material and retention, with resin composite showing slightly better clinical scores (p<0.05). Conclusion: After 3-year clinical evaluation, both the glass hybrid restor- ative system and the nano-hybrid resin composite showed good clinical performance in moderate to large two-surface restorations in the molar region.

glass hybrid system, multicenter, resin composite, split mouth, clinical trial

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