Materials and methods: patients were selected each receiving at least one and no more than two restorations. A total of 40 restorations were made. Adhesive procedures were performed following manufacturers' instructions. Before applying the adhesive material, a pain measurement was performed utilizing a simple pain scale based on the response method. Response was determined to a one-second application of air from a dental unit syringe (at 40-65 p.s.i. at approximately 20 C°), directed perpendicularly to the root surface at a distance of 2 cm and by tactile stimuli with a sharp #5 explorer. The restorations were placed by the same operator, whilst the clinical evaluations at recall visits was made by a second operator in double blind. The restorations were evaluated for post-op sensitivity, marginal discoloration, marginal integrity, secondary caries, maintenance of interproximal contact and fracture at baseline, and at days 1 and 7, then after 1 and 12 month. The other evaluated clinical parameters were: marginal discoloration and integrity, secondary caries, fracture, vitality test, retention and interproximal contacts.
Results: three cavities showed moderate sensitivity at baseline before placing restorations. Post-op sensitivity progressively reduced until at 1 year recall sensitivity completely disappeared. Only two restorations showed marginal discoloration, of alpha and beta degree, after 1 year. Conclusion: No post-op sensitivity was noted after 1 year. The combination of G-Bond and Kalore is promising. Three and five year recalls will clarify longevity of these types of restorations.