1 - Intra-oral digital photography of the NCCL restoration; 2- Post-operative sensitivity evaluation by applying air for 10 seconds from a dental syringe placed 2 cm from the tooth surface (4); 3 - Direct evaluation by 3 calibrated examiners according to FDI (6, 7) and USPHS (8); 4- Data register Study variable definition - Clinical/direct observation and performance evaluation acceptance by means of FDI (FDI World Dental Federation - clinical criteria for the evaluation of direct restorations) (6, 7) and USPHS (8).