DMLS
Dental technology is undergoing advancements at a fast pace and technology is being imported from various other fields. One such imported technology is direct metal laser sintering technology(DMLS) for casting metal crowns.
MLS crowns and bridges are made of a particle size of 3–14 μm. This combined with very fine point laser (0.1 mm) results in a density of 99.9 %, resulting in stronger copings. The densely sintered crowns have practically no voids. The process results in highly accurate, well detailed restorations. Marginal discrepancy is clinically acceptable with the restoration possessing consistent quality and strength [7–9]. DLMS is a clean alternative to casting. Messy tasks of de-flasking, cleaning molds, elaborate steps can be dispensed with. The use of automated scanning and CAD software results in full control over the framework design. Coping thickness, pontic design and cement thickness can all be standardized with this method. Laser sintering is a computer-controlled, precise process that ensures consistent work quality. The possibilities of inclusions or defects that are commonly introduced in the manual casting methods are dispensed with. Multiple unit framework usually suffers from distortion in the conventional technique, DMLS is more predictable with improved marginal fit
