United States securities and exchange commission logo February 3, 2023 B. Sonny Ball Chief Executive Officer and President Sintx Technologies, Inc. 1885 West 2100 South Salt Lake City, UT, 84119 Re: Sintx Technologies, Inc. Registration Statement on Form S-1 Filed January 31, 2023 File No. 333-269475 Dear B. Sonny Ball: This is to advise you that we have not reviewed and will not review your registration statement. Please refer to Rules 460 and 461 regarding requests for acceleration. We remind you that the company and its management are responsible for the accuracy and adequacy of their disclosures, notwithstanding any review, comments, action or absence of action by the staff. Please contact Jessica Ansart at 202-551-4511 with any questions. Sincerely, Division of Corporation Finance Office of Industrial Applications and Services cc: David Marx