Data from: "Impact of autoclaving on the dimensional stability of 3D-printed surgical guides for aesthetic crown lengthening". Data includes root mean square and standard deviation representing trueness and precision from all surgical guides at each timepoint before and after sterilization compared to the reference model. Data also includes the discrepancy between the reference model and the actual models at T1 at a randomly selected arch for each surgical guide. Finally, data includes the area measured between the three reference landmarks for every surgical guide at T1.