Stereolithography (SLA) is an industrial process used to create concept models and prototypes rapidly. SLA 3D printing works by curing layers of photopolymer resin with a laser beam. The laser beam traces the cross-section of every part layer by layer and hardens the resin. Dentistry is one of the most promising applications for 3D printing. With SLA, it is possible to create highly realistic dental prosthetics with intricate geometries. In Dentistry SLA is mostly used to produce dental prosthetics like Invisalign aligners, dentures, and crowns quickly and affordably.