A large number of hard dental tissue lesions, including non-cavitated and cavitated carious lesions, non-carious lesions and non-aesthetic changes of hard dental tissue, including surface discoloration, can be restored by aesthetic and restorative procedures. Non-carious lesions of dental hard tissues are abrasion, attrition, erosion and abfraction, which is very important to distinguish for further treatment. Basic natural tooth colour can be impaired by insufficient mineralization, or accumulation of certain types of mass of pigments which may be on the surface or inside of tooth. Therefore, we differentiate between internal and external staining. Treatment of dental hard tissue lesions depending on the etiology, can be carried out by bleaching (''At-home bleaching'', ''In-office bleaching''), microabrasion, making minimally invasive preparation (tunnel, mini box or slot preparation), producing composite veneers or conducting non-invasive procedures. Non-invasive procedures include treatment of dental caries by ozone, laser or remineralization, which is imperative in the treatment of initial carious lesions. The development of technology and materials, primarily adhesive systems and composites has made contemporary aesthetic restorative procedures possible. They are becoming more common because they enable the preservation of hard dental tissues, at the same time take care of aesthetics and, not less important, functionality.