Minimally invasive removal of a periodontally compromised implant
Pre-operative Observation
- #35: Bone loss of 3mm
- #36: Floating with no bone development & gingival inflammation
- #37: Bone loss of 5mm
Failed implants #36 and #37 were easily removed with a crown remover.
The buccal view following removal of #36 and #37.
A fixture remover screw was screwed into the implant fixture #35 with 70Ncm of wrench torque (less than 80Ncm is recommended).
A fixture remover screw must be inserted to the yellow line marked on a 3D image to prevent them from getting fractured. Bottom threads are in the opposite direction to upper threads.
A fixture remover that fits to the coronal part of the implant was screwed on the removal screw in counterclockwise direction. 300Ncm counter-torque was applied with copious water, but failed to unthread the implant.
With 1mm of crestal bone prep, the implant started to come out at 200Ncm counter-torque.
As the favorable bony conditions of threads are preserved, implant may be inserted again with good prognosis
The surgical site was simply sutured.
Postoperative radiographic view.
The surgical site following a month of tissue healing.
Click on the image to see clinical video.