24 Months Evaluation Of Class V Restorations With Different Composites

Objectives: Study's aim was to test the clinical and esthetic performance of a composite flow resin system in comparison with a microhybrid composite resin system in the treatment of class V lesions in vital teeth Methods: Sixty (60) restorations have been carried out in thirty (30) patients respecting the inclusion-exclusion criteria and randomisation criteria for selection of technique and teeth. In each patient one restoration was made with micro-layering technique using Swiss Master Light (EMS) curing light (800 mW/cm2 for 20 s). The following test groups were randomly assigned to the class V cavites with two different composite materials and the same adhesive system Gluma Comfort Bond (Heraeus): A) Venus Diamond (Heraeus) B) Venus Diamond Flow (Heraeus). Three clinicians took part to this clinical study, one expert clinic operator and two independent evaluators with more than 80 % of clinical agreement using a loop visual (4.5x). Two year controls have been executed with USPHS evaluating system. Results: None of the restorations received a Charlie rating. Some restoration was lost: 5% (Venus-Diamond) and 7 % (Venus-Diamond Flow). The restorations received 92% (Venus-Diamond) and 100% (Venus-Diamond Flow) Alpha ratings for surface texture. The defects/gaps in marginal adaptation score was recorded as Alpha ratings 86% (Venus-Diamond) and 86% (Venus-Diamond Flow). We noticed a 23% in (Venus-Diamond) and 14 % (Venus-Diamond Flow) in (B) rated Bravo for color matching ability. No restoration showed post-operative sensitivity or adverse events were reported. The total absence of post-operative sensibility has to be pointed out. Conclusions: Within the limits of this clinical trial, to be continued with three year controls, the resin composite flow behave better if compared with microhybrid resin composite. We appreciate that color match, margin adapatation and surface texture obtained better scores in class V restorations, confirming a clinical “feeling” appreciated in 1 year results.