Incremental placement is the method of choice to offset the shrinkage stress developed by conventional composite materials. Excessive stress may lead to debonding of the restoration especially at the margins and the floor of the cavity. The resulting problems include discolouration, recurrent caries and postoperative sensitivity.
For this reason, the material-specific parameters of polymerisation shrinkage and shrinkage stress and their control are critically important to the use of restoratives in the bulk-filling technique. With the development of the Beautifil-Bulk system clinicians can place increments up to 4 mm in thickness, SHOFU has even gone one step further. This system features not only low shrinkage stress, but also effective optical diffusion processes for superior shade matching and aesthetics. Moreover, acid-neutralisation and anti-plaque properties contribute to caries prevention.