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J Oral Implantol. 2013 Aug;39(4):475-8. doi: 10.1563/AAID-JOI-D-11-00126. Epub 2011 Sep 9.

Ultrasonic oscillations for conservative retrieval of a rare fracture of implant healing abutment.

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  • 1Post Graduate Institute of Medical Education and Research, Chandigarh, India.


Dental implants can be rendered useless because of complications related to implant components such as the fracture of abutment screw and prosthetic retaining screw. Removal of such fractured fragments is therefore deemed necessary for the sake of prosthetic restoration. This case report presents a rare incident of healing abutment fracture and details the stepwise and probably the most conservative clinical technique using ultrasonic oscillations for retrieval of fractured screw fragment without affecting the internal surface of the implant. The management was based on the fact that the screw, being an inclined plane, will unthread when subjected to continuous vibrations.

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