Lubricants to assist in fractured abutment or prosthetic screws?

Any recommendations for lubricants to assist in fractured abutment or prosthetic screws? I have seen the use of tartar and stain remover on You Tube. However the active ingredient has a very low pH and is know to irritate skin and mucosa. Petroleum based lubricants are obviously not to be tried. Any thoughts on bleach and/soap?

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