The Multi unit abutments (MUA) provides a solution for screw-retained prostheses even on complicated-to-restore implants. The Multi unit abutments comprises a several sizes and variety of heights for both the upper and lower jaws. Also with a wide range of complementary products. Straight multi unit abutment with castable sleeve is the product that technician use daily. They will adapt and modify the castable sleeve which will be the base of the future restoration. In technical process the plastic will be replaced with metal alloy.