United States securities and exchange commission logo July 20, 2022 Michael Sullivan Chief Financial Officer Oragenics, Inc. 4902 Eisenhower Blvd, Suite 125 Tampa, Florida 33634 Re: Oragenics, Inc. Form 10-K for the Fiscal Year Ended December 31, 2021 Filed March 24, 2022 File No. 001-32188 Dear Mr. Sullivan: We have limited our review of your filing to the financial statements and related disclosures and have the following comments. In some of our comments, we may ask you to provide us with information so we may better understand your disclosure. Please respond to these comments within ten business days by providing the requested information or advise us as soon as possible when you will respond. If you do not believe our comments apply to your facts and circumstances, please tell us why in your response. After reviewing your response to these comments, we may have additional comments. Form 10-K for the Fiscal Year Ended December 31, 2021 Item 7. Management's Discussion and Analysis of Financial Condition and Results of Operations Research and Development, page 81 1. We note on page 4 that you have multiple license agreements and product candidates in varying stages of development and clinical testing. Please revise future filings to provide more details about your research and development expenses for each period presented, including but not limited to by product/program as well as by the nature of the expenses. To the extent that you do not track expenses by product candidate, please disclose as such. In addition, disclose the specific reasons for significant changes in research and development expenses each period. Michael Sullivan Oragenics, Inc. July 20, 2022 Page 2 Exhibits 32.1 and 32.2, page 111 2. Please amend your filing to revise the Section 906 certifications to include the correct year of your Form 10-K, for the period ended December 31, 2021. In closing, 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. You may contact Christie Wong, Staff Accountant, at (202) 551-3684 or Brian Cascio, Accounting Branch Chief, at (202) 551-3676 with any questions. FirstName LastNameMichael Sullivan Sincerely, Comapany NameOragenics, Inc. Division of Corporation Finance July 20, 2022 Page 2 Office of Life Sciences FirstName LastName