MDI O-Ball Prosthetic Head MOB-10 is an O-ball prosthetic head that measures 10 mm and utilizes the LAOB MDI Collared O-Ball Head Analog. The Collared MDI Implant MAX Thread design features a 2.5 mm polished collar. This implant is ideal for patients who Suggested Applications Ideal for patients who have gingival tissue thicker than 2 mm with D2 or D3 bone. Designed for use with prosthetic parts and components. Used for implant and prosthetic placement.