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Removal of a fractured implant screw

A 42 year old male patient referred to the clinic had a broken screw inside the implant. This case shows a removal of fractured screw using Neobiotech Screw Remover(SR) Kit-II ver.1.


SITUATION

A 42-year-old male patient was referred to the clinic with a fractured implant screw.


Preoperative view of screw removal


 

Hex 2.7 External guide, M2.0 claw drill A claw drill was placed right on top of the fractured screw. Drilling direction should be in reverse.

A Ø1.2mm Perfect guide connected to a PG driver.

A Ø1.2mm perfect guide was tightened to 15Ncm in the screw hole.

A perfect guide positions a drill the dead center of the screw and prevents it from damaging the threads of the implant.

A Ø1.0mm reverse drill was used at 2,000rpm with copious water irrigation.

Drilling direction should be in reverse.

A Ø1.0mm screw remover matching to the reverse drill was being connected to a shank driver. The fractured screw was being removed by rotating the screw in counterclockwise direction.

The fractured screw came out of the screw hole.

Postoperative view of screw removal

Healing abutment was connected after the fractured screw removal.



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