Introduction
carious lesions, fracture
Dental resin composites have gradually replaced amalgam as the standard restorative material for permanent teeth in following the principles of minimally invasive dentistry and the treaty of the Minamata Convention on Mercury in 2013 that encourages phase down of amalgam (Celik et al. Recently, an alkasite-based tooth-coloured material, Cention NIn-vitro studies conducted in the recent past with alkasite resin composite show that alkasite has better or similar mechanical and biological properties such as microleakage, microhardness, fracture resistance and bond strength, to those of other resin composites (George and Bhandary Therefore, the aim of the current study was to evaluate the clinical effectiveness of an alkasite with nanofilled resin composite in the restoration of occlusal carious lesions in permanent molar teeth of children. The null hypothesis was that there is no difference between the clinical effectiveness of alkasite resin composite and nanofilled resin composite as a permanent restorative material for occlusal carious lesions in permanent molar teeth of children.