Short-term clinical evaluation of inlay and onlay restorations made with aceromer

Purpose: This prospective clinical trial evaluated the clinical acceptabili ty of a new material, ceromer, used for inlay and onlay restorations in sin gle- or multisurface cavities of posterior teeth. Materials and methods: Fo rty-three Targis inlay and onlay restorations were placed in 25 patients an d evaluated using the United States Public Health Service criteria. The lab oratory work was conducted by three dental technicians according to the man ufacturer's recommendations. Twenty-five restorations were luted with Synta c bonding system and Variolink II and 18 were luted with Scotchbond Multi P urpose and Opal Luting Composite. The recalls were done at 6, 12, and 18 mo nths. Restorations were evaluated for six parameters and scored as ideal (A ), clinically acceptable (B), or clinically unacceptable (C). Results: Indi rect restorations received, after 18 months, scores of A at the following r ates: color match 77%; marginal discoloration 93%; secondary caries 100%; a natomic form 93%; and marginal integrity 95%. For these parameters, statist ical analysis indicated no significant differences at baseline and after 18 months. Postoperative hypersensitivity was reported by seven patients at b aseline, but it decreased and there was no hypersensitivity at 12- and 18-m onth follow-ups. Conclusion: Over an 18-month period the Targis restoration system yielded good clinical service.