Table 1.

Screw retrieval techniques for fracture at or above the platform of the implant

Mild approach with low risk
Author and year	Study design and title	Location in arch	Abutment material/type	Restoration material	Technique andretrieval methodology
Barbosa et al., 2014[7]	DescriptiveThe cotton driver: An alternative technique for removing fractured screw fragments	Not available	Titanium abutment	Not available	Modified cotton swabPressing the cotton swab into the implant head and twist the fractured abutment screw slowly counter clockwise
Yang and Wu 2019[8]	DescriptiveA technique to retrieve a fractured implant abutment screw by using a screwdriver fashioned from a needle	Not available	Prefabricated Titanium abutment	Not available	Modified hypodermic needleAppropriate sized needle is bending to form screwdriver. After engaging the fractured end, turned counter clockwise for removal