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Stuck/demaged cover screw

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DRVelich's picture
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Joined: 5 Feb 2015

Hi everyone,
I need help regarding a patient with a stucked in cover screw whith a broken screwdriver tip in the screw head. I would appriciate any ideas how I could either remove the cover screw or use the implant for it's purpose. Implant type: AlphaBio SPI (3.3/13). Site: Lower rirgth 2.
Many thanks

Norbert Velich MD, DMD, PhD, FEBOMFS

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Norbert Velich MD, DMD, PhD, FEBOMFS

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Stuck/demaged cover screw

If nothing else works maybe could remove the implant with a trephine. Then decide whether to put a new implant immediately or wait for the wound to heal and then place new implant.

If you post some images that would help.

Regards,

Dr. Veerendra Darakh

 

 

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praxisclinicinfo@gmail.com's picture
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Stuck/demaged cover screw

Hi Dr Norbert ,

There are 2 ways to go about it , and you'll need magnification for both of them.
1. Under a microscope , use an ultrasonic handpiece with an endodontic file removal tip. Tips are available from Acteon ET 25 in their endo kit , or from Dentsply as well. Use the tip to gradually ultrasonic the #ed screw head . Once out , the screw channel will be free to engage again.

2. If the 1st step does not work, then create a straight channel with a round or cylindrical bur on the cover screw , pretty much similar to how its on a regular hardware screw. Bend the end of a wax carver and flatten the tip with a bit to engage the above created channel and rotate the cover screw out. You will need magnification to do this and a lot of patience as well., but it will work.

Regards

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DRVelich's picture
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Stuck/demaged cover screw

Dear Dr.Varun Malhotra,

Many thanks for your advice!

Norbert Velich

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Norbert Velich MD, DMD, PhD, FEBOMFS

Norbert Velich MD, DMD, PhD, FEBOMFS