An in vitro study to compare shear bond strength of aged composite to two single-shade composites

Multiple comparisons between the three groups demonstrated significantly higher mean repair bond strength when the same composite was used for repair and between the two single-shade composites, Omnichroma demonstrated significantly higher repair bond strength (P = 0.002). Within the limitation of this study, it was concluded that repair with the same composite resulted highest repair bond strength, while the single-shade composites provided acceptable repair bond strengths.