Abstract
In any repair of a tooth with permanent restorative materials,
the interface is always a sensitive region. The appearance of adhesive
materials was a great step forward in dealing with the problems of
this region and improving the overall performance of the restorations.
However, contemporary adhesive materials do have a major
disadvantage, namely that their durability is limited, a limitation
which often arises due to their inadequate marginal adaptation.
Restorative materials in the new era aim to be “bio-active” and long lasting.
As part of our continuous interest in developing the novel bioactive
containing restorative materials, we evaluated the effect of the
additional bio-actives (such as chitosan, β-carotene, guar gum resin
and the combination of the materials) to the commercially available
flowable restorative materials such as Premise on the volumetric
shrinkage, flexural strength, compressive strength, the surface
hardness of the “bio-active” containing composite