Name the parts of the implant assembly
1 - fixture, 2 –  abutment, 3 - abutment screw, 4 - crown
1 - crown, 2 – abutment screw, 3 - abutment. 4 - fixture
1 - crown, 2 - healing cap, 3 - abutment. 4 - root form  implant
1 - crown, 2 - healing cap, 3 - cover screw, 4 - fixture