On 3D printing of dental crowns with direct metal laser sintering for canine

DMLS is one of the established metal powder-based 3D printing technologies commercially used for customized DC and implants for human dentistry applications. But hitherto, little has been reported on 3D printing of DC for ST of canine using DMLS. In this study, DC of different geometrical features (V/A ratio) were printed (for ST of dog) on DMLS (with input process parameters: LP, SV, IP, HD, MC, and V/A ratio). The output parameters were HV, PL, Ra, and Δd. The result suggested that DMLS process parameters have an insignificant effect on mechanical and surface properties of DC (within selected range), whereas the V/A ratio significantly impacts PL and Δd. For HV, the MC is the only significant parameter. The results are in-line with photomicrographs, porosity analysis, and grain size of 3D metal printed DC.