Conclusions A fractured abutment screw of a crown supported by an endosseous implant is an unhappy complication. The fragment retained in the fixture can be retrieved with a festooned #557 latch slow-speed burr set in reverse torque. Once the fragment is loosened and advanced coronally, a clockwise-turning #33 1/3 burr is touched to the fragment side to completely remove it. Care is taken n...

Discussion A common complication of implant prosthetics is with components. The abutment screw connects the abutment to the fixture and can fracture under occlusal functional load. In preparation for treatment of a patient presenting with an abutment screw fracture, a radiograph should be taken to ensure osseous support quality of the supporting implant. The fixture screw hole should be flush...