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        <PersonNm>Marko Vujicic PHD</PersonNm>
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        <PersonNm>Michelle Reeder</PersonNm>
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        <PersonNm>Robert Quashie</PersonNm>
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        <PersonNm>Scott W Fowkes</PersonNm>
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        <PersonNm>Stephanie L Moritz</PersonNm>
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        <PersonNm>Anthony Frankos</PersonNm>
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        <PersonNm>Christa B Martin</PersonNm>
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        <PersonNm>Leslee M Williams</PersonNm>
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        <Desc>Tenant Security Deposits</Desc>
        <Amt>47958</Amt>
      </OtherLiabilitiesOrgGrp>
      <OtherLiabilitiesOrgGrp>
        <Desc>Post-Retirement Benefit</Desc>
        <Amt>10509038</Amt>
      </OtherLiabilitiesOrgGrp>
      <OtherLiabilitiesOrgGrp>
        <Desc>Federal Income Tax Payable</Desc>
      </OtherLiabilitiesOrgGrp>
      <TotalLiabilityAmt>19672931</TotalLiabilityAmt>
      <FootnoteTextInd>X</FootnoteTextInd>
      <OtherRevenueAmt>0</OtherRevenueAmt>
      <RevenueNotReportedAmt>0</RevenueNotReportedAmt>
      <RevenueSubtotalAmt>0</RevenueSubtotalAmt>
      <OtherRevenuesNotIncludedAmt>0</OtherRevenuesNotIncludedAmt>
      <RevenueNotReportedFinclStmtAmt>0</RevenueNotReportedFinclStmtAmt>
      <TotalRevenuePerForm990Amt>0</TotalRevenuePerForm990Amt>
      <OtherExpensesIncludedAmt>0</OtherExpensesIncludedAmt>
      <ExpensesNotReportedAmt>0</ExpensesNotReportedAmt>
      <ExpensesSubtotalAmt>0</ExpensesSubtotalAmt>
      <OtherExpensesNotIncludedAmt>0</OtherExpensesNotIncludedAmt>
      <ExpensesNotRptFinclStmtAmt>0</ExpensesNotRptFinclStmtAmt>
      <TotalExpensesPerForm990Amt>0</TotalExpensesPerForm990Amt>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>Schedule D, Part V, Line 4 Intended uses of endowment funds</FormAndLineReferenceDesc>
        <ExplanationTxt>The ADA's related organization, the American Dental Association Foundation, has endowment funds that support access to care and educational activities as well as charitable financial assistance. Net Assets related to the Foundation endowments are donor restricted funds, classified and reported based upon the donor-imposed restrictions or per court order.</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>Schedule D, Part X, Line 2 FIN 48 (ASC 740) footnote</FormAndLineReferenceDesc>
        <ExplanationTxt>Deferred taxes are established for temporary differences between the financial reporting basis and the tax basis of assets and liabilities. Deferred taxes are based upon enacted tax rates, which would apply during the period which taxes become payable or recoverable, and the adjustment of cumulative deferred taxes for any changes in the tax rate. The Association accounts for uncertain tax positions in accordance with ASC Topic 740, Income Taxes. ASC Topic 740 addresses the determination of how tax benefits claimed or expected to be claimed on a tax return should be recorded in the consolidated financial statements. Under ASC Topic 740, the Association must recognize the tax benefit from an uncertain tax position only if it is more likely than not that the tax position will be sustained on examination by the taxing authorities, based on the technical merits of the position. The tax benefits recognized in the consolidated financial statements from such a position are measured based on the largest benefit that has a greater than 50% likelihood of being realized upon ultimate settlement. ASC Topic 740 also provides guidance on derecognition, classification, interest, and penalties on income taxes and accounting in interim periods and accounting in interim periods and requires increased disclosures. As of December 31, 2024, there was no liability related to uncertain tax positions for federal and state income taxes.</ExplanationTxt>
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      <AccountActivitiesOutsideUSGrp>
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        <TypeOfActivitiesConductedTxt>Program Services</TypeOfActivitiesConductedTxt>
        <SpecificServicesProvidedTxt>membership, licensing, software</SpecificServicesProvidedTxt>
        <RegionTotalExpendituresAmt>751008</RegionTotalExpendituresAmt>
      </AccountActivitiesOutsideUSGrp>
      <AccountActivitiesOutsideUSGrp>
        <RegionTxt>North America (Canada &amp; Mexico only)</RegionTxt>
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        <EmployeeCnt>0</EmployeeCnt>
        <TypeOfActivitiesConductedTxt>Program Services</TypeOfActivitiesConductedTxt>
        <SpecificServicesProvidedTxt>consulting, software</SpecificServicesProvidedTxt>
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      </AccountActivitiesOutsideUSGrp>
      <AccountActivitiesOutsideUSGrp>
        <RegionTxt>Central America and the Caribbean</RegionTxt>
        <TypeOfActivitiesConductedTxt>Investments</TypeOfActivitiesConductedTxt>
        <RegionTotalExpendituresAmt>9609070</RegionTotalExpendituresAmt>
      </AccountActivitiesOutsideUSGrp>
      <SubtotalOfficesCnt>0</SubtotalOfficesCnt>
      <SubtotalEmployeesCnt>0</SubtotalEmployeesCnt>
      <ContinuationTotalOfficeCnt>0</ContinuationTotalOfficeCnt>
      <ContinuationTotalEmployeeCnt>0</ContinuationTotalEmployeeCnt>
      <TotalOfficeCnt>0</TotalOfficeCnt>
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      <ContinuationSpentAmt>0</ContinuationSpentAmt>
      <TotalSpentAmt>10430116</TotalSpentAmt>
      <TransferToForeignCorpInd>false</TransferToForeignCorpInd>
      <InterestInForeignTrustInd>false</InterestInForeignTrustInd>
      <ForeignCorpOwnershipInd>false</ForeignCorpOwnershipInd>
      <PassiveForeignInvestmestCoInd>false</PassiveForeignInvestmestCoInd>
      <ForeignPartnershipInd>true</ForeignPartnershipInd>
      <BoycottCountriesInd>false</BoycottCountriesInd>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>Schedule F, Part I, Line 3 Method used to account for expenditures on org's financial statements</FormAndLineReferenceDesc>
        <ExplanationTxt>EUROPE (INCLUDING ICELAND AND GREENLAND)-Accrual; NORTH AMERICA (CANADA &amp; MEXICO ONLY)-Accrual</ExplanationTxt>
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    </IRS990ScheduleF>
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        </RecipientBusinessName>
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          <BusinessNameLine1Txt>Arizona Dental Association</BusinessNameLine1Txt>
        </RecipientBusinessName>
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          <CityNm>SCOTTSDALE</CityNm>
          <StateAbbreviationCd>AZ</StateAbbreviationCd>
          <ZIPCd>85251</ZIPCd>
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        </RecipientBusinessName>
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        </RecipientBusinessName>
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        </RecipientBusinessName>
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          <ZIPCd>80111</ZIPCd>
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      <RecipientTable>
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        </RecipientBusinessName>
        <ForeignAddress>
          <AddressLine1Txt>200 Calle Manual Domench</AddressLine1Txt>
          <CityNm>San Juan</CityNm>
          <ProvinceOrStateNm>PR</ProvinceOrStateNm>
          <CountryCd>RQ</CountryCd>
          <ForeignPostalCd>009183537</ForeignPostalCd>
        </ForeignAddress>
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        </RecipientBusinessName>
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          <AddressLine1Txt>835 WEST QUEEN STREET</AddressLine1Txt>
          <CityNm>SOUTHINGTON</CityNm>
          <StateAbbreviationCd>CT</StateAbbreviationCd>
          <ZIPCd>06489</ZIPCd>
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        </RecipientBusinessName>
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          <AddressLine1Txt>200 CONTINENTAL DRIVE</AddressLine1Txt>
          <CityNm>NEWARK</CityNm>
          <StateAbbreviationCd>DE</StateAbbreviationCd>
          <ZIPCd>19713</ZIPCd>
        </USAddress>
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        <CashGrantAmt>72000</CashGrantAmt>
        <PurposeOfGrantTxt>public support</PurposeOfGrantTxt>
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      <RecipientTable>
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          <BusinessNameLine1Txt>DENTAL LIFELINE NETWORK</BusinessNameLine1Txt>
        </RecipientBusinessName>
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          <CityNm>Denver</CityNm>
          <StateAbbreviationCd>CO</StateAbbreviationCd>
          <ZIPCd>80202</ZIPCd>
        </USAddress>
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        <IRCSectionDesc>501(c)(3)</IRCSectionDesc>
        <CashGrantAmt>50000</CashGrantAmt>
        <PurposeOfGrantTxt>public support</PurposeOfGrantTxt>
      </RecipientTable>
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          <BusinessNameLine1Txt>Florida Dental Association</BusinessNameLine1Txt>
        </RecipientBusinessName>
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          <CityNm>Tallahassee</CityNm>
          <StateAbbreviationCd>FL</StateAbbreviationCd>
          <ZIPCd>32303</ZIPCd>
        </USAddress>
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        </RecipientBusinessName>
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          <CityNm>ATLANTA</CityNm>
          <StateAbbreviationCd>GA</StateAbbreviationCd>
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      <RecipientTable>
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          <BusinessNameLine1Txt>Harbor Dental Society</BusinessNameLine1Txt>
        </RecipientBusinessName>
        <USAddress>
          <AddressLine1Txt>4010 Watson Plaza Dr</AddressLine1Txt>
          <CityNm>Lakewood</CityNm>
          <StateAbbreviationCd>CA</StateAbbreviationCd>
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        </RecipientBusinessName>
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          <CityNm>HONOLULU</CityNm>
          <StateAbbreviationCd>HI</StateAbbreviationCd>
          <ZIPCd>96814</ZIPCd>
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      <RecipientTable>
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          <BusinessNameLine1Txt>HEALTH VOLUNTEERS OVERSEAS</BusinessNameLine1Txt>
        </RecipientBusinessName>
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          <CityNm>Washington</CityNm>
          <StateAbbreviationCd>DC</StateAbbreviationCd>
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          <CityNm>BOISE</CityNm>
          <StateAbbreviationCd>ID</StateAbbreviationCd>
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        </RecipientBusinessName>
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          <CityNm>Louisville</CityNm>
          <StateAbbreviationCd>KY</StateAbbreviationCd>
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          <CityNm>Baton Rouge</CityNm>
          <StateAbbreviationCd>LA</StateAbbreviationCd>
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          <CityNm>Flowood</CityNm>
          <StateAbbreviationCd>MS</StateAbbreviationCd>
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        <PersonNm>Scott W Fowkes</PersonNm>
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        <PersonNm>Pamela Von Lehmden</PersonNm>
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        <PersonNm>Leslee M Williams</PersonNm>
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      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>Schedule J, Part I, Line 1a Travel for companions</FormAndLineReferenceDesc>
        <ExplanationTxt>Companion travel is considered a taxable benefit and subject to tax. The tax associated with this benefit is also included in the individual's 1099 or Form W-2. Executive Director; Former ADA President ; 2 Officers; 16 Trustees.</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>Schedule J, Part I, Line 1a Tax indemnification and gross-up payments</FormAndLineReferenceDesc>
        <ExplanationTxt>Companion travel is considered a taxable benefit and subject to tax. The tax associated with this benefit is also included in the individuals' 1099 or Form W-2. The individuals receive gross up payments to cover their added tax burden for companion travel. Executive Director; Former ADA President; 2 Officers; 16 Trustees.</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>Schedule J, Part I, Line 1a Health or social club dues or initiation fees</FormAndLineReferenceDesc>
        <ExplanationTxt>As part of the Executive Director's employment contract, the Executive Director was reimbursed for membership in an athletic club. The tax associated with this benefit is also included in the individual's Form W-2.</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>Schedule J, Part I, Line 4a Severance or change-of-control payment</FormAndLineReferenceDesc>
        <ExplanationTxt>James Goodman received severance of $486,701 for the 2024 fiscal year.</ExplanationTxt>
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    </IRS990ScheduleJ>
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      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>Form 990, Part VI, Line 6 Classes of members or stockholders</FormAndLineReferenceDesc>
        <ExplanationTxt>All ADA members have the right to vote and elect representatives to the ADA House of Delegates ("HOD") through their local and/or state dental association in a national tripartite governance structure. The United States and its territories are divided into 17 districts. Each district elects a trustee to the board who serves a 4 year term. The ADA HOD is the primary legislative body of the ADA which meets annually and elects the officers of the Board of Trustees.</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>Form 990, Part VI, Line 7a Members or stockholders electing members of governing body</FormAndLineReferenceDesc>
        <ExplanationTxt>The nature of the voting rights of members is described above from Part VI, Line 6. Elections are held on an annual basis for each level of governance.</ExplanationTxt>
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      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>Form 990, Part VI, Line 7b Decisions requiring approval by members or stockholders</FormAndLineReferenceDesc>
        <ExplanationTxt>The "House of Delegates" is separate from the governing Board of Directors and must approve both the budget and any changes to the organization's BYlaws.</ExplanationTxt>
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      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>Form 990, Part VI, Line 8b Documentation of meetings held by committees of governing body</FormAndLineReferenceDesc>
        <ExplanationTxt>There is no committee with broad authority to act on behalf of the governing body.</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>Form 990, Part VI, Line 11b Review of form 990 by governing body</FormAndLineReferenceDesc>
        <ExplanationTxt>The Form 990 was reviewed by management prior to filing. Financial Information was compared to the organization's books and records. Responses to questions and additional information was reviewed for appropriateness. Additionally, the Form 990 was provided to the Audit Committee of the Board of Trustees as well as all members of the Board of Trustees prior to filing.</ExplanationTxt>
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      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>Form 990, Part VI, Line 12c Conflict of interest policy</FormAndLineReferenceDesc>
        <ExplanationTxt>There is an annual review of the conflict of interest policy. Board members and employees at the director level and above are required to sign the conflict of interest disclosure from each year. In-house legal counsel collects and reviews responses and determines necessary action, if any. Individuals who have a disclosed conflict recuse themselves from discussion, and do not vote if there is a direct conflict.</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>Form 990, Part VI, Line 15a Process to establish compensation of top management official</FormAndLineReferenceDesc>
        <ExplanationTxt>The human resources division obtains comparability data on executive director annual salary increases every 3 to 5 years and monitors a comprehensive compensation program. This process was last undertaken in 2024 for the executive director.</ExplanationTxt>
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      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>Form 990, Part VI, Line 15b Process to establish compensation of other employees</FormAndLineReferenceDesc>
        <ExplanationTxt>On an annual basis, the compensation committee of the board of trustees determines and reviews the compensation of the officers and members of the board of trustees while the executive director determines and reviews the compensation of key employees. Employees' salaries are made available to the board of trustees for examination upon request and any deliberations or decisions based on the review is documented in the board minutes. The human resources department reviews comparability data on annual salary increases every 3 to 5 years and monitors a comprehensive compensation program.</ExplanationTxt>
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      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>Form 990, Part VI, Line 19 Required documents available to the public</FormAndLineReferenceDesc>
        <ExplanationTxt>The American Dental Association makes its governing documents, conflict of interest policy, or financial statements available upon request.</ExplanationTxt>
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      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>Form 990, Part VIII, Line 5 Royalties</FormAndLineReferenceDesc>
        <ExplanationTxt>ADA entered into a journal publishing agreement to publish, promote, and distribute The Journal of the American Dental Association (JADA). The amount that the Publisher pays to ADA is primarily related to advertising revenue from the publication.</ExplanationTxt>
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      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>Form 990, Part VIII, Line 11d Other Miscellaneous Revenue</FormAndLineReferenceDesc>
        <ExplanationTxt>Other - Total Revenue: 834750, Related or Exempt Function Revenue: , Unrelated Business Revenue: , Revenue Excluded from Tax Under Sections 512, 513, or 514: 834750; Advertising - Total Revenue: 118120, Related or Exempt Function Revenue: , Unrelated Business Revenue: 118120, Revenue Excluded from Tax Under Sections 512, 513, or 514: ; ADA Practice Transitions - Total Revenue: 68182, Related or Exempt Function Revenue: 68182, Unrelated Business Revenue: , Revenue Excluded from Tax Under Sections 512, 513, or 514: ; Speaker Fees - Total Revenue: 1671, Related or Exempt Function Revenue: , Unrelated Business Revenue: , Revenue Excluded from Tax Under Sections 512, 513, or 514: 1671;</ExplanationTxt>
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        <FormAndLineReferenceDesc>Form 990, Part XI, Line 9 Other changes in net assets or fund balances</FormAndLineReferenceDesc>
        <ExplanationTxt>Investment in Sub - 1212755; Pension Related Changes other than Net Periodic Costs - 6854571; Total - 8067326;</ExplanationTxt>
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      <ReimbursementPaidToOtherOrgInd>true</ReimbursementPaidToOtherOrgInd>
      <ReimbursementPaidByOtherOrgInd>true</ReimbursementPaidByOtherOrgInd>
      <TransferToOtherOrgInd>true</TransferToOtherOrgInd>
      <TransferFromOtherOrgInd>true</TransferFromOtherOrgInd>
      <TransactionsRelatedOrgGrp>
        <OtherOrganizationName>
          <BusinessNameLine1Txt>ADA Business Enterprises Inc</BusinessNameLine1Txt>
        </OtherOrganizationName>
        <TransactionTypeTxt>A</TransactionTypeTxt>
        <InvolvedAmt>51913</InvolvedAmt>
        <MethodOfAmountDeterminationTxt>Lease terms</MethodOfAmountDeterminationTxt>
      </TransactionsRelatedOrgGrp>
      <TransactionsRelatedOrgGrp>
        <OtherOrganizationName>
          <BusinessNameLine1Txt>ADA Business Enterprises Inc</BusinessNameLine1Txt>
        </OtherOrganizationName>
        <TransactionTypeTxt>Q</TransactionTypeTxt>
        <InvolvedAmt>164569</InvolvedAmt>
        <MethodOfAmountDeterminationTxt>Indirect Cost calculation</MethodOfAmountDeterminationTxt>
      </TransactionsRelatedOrgGrp>
      <TransactionsRelatedOrgGrp>
        <OtherOrganizationName>
          <BusinessNameLine1Txt>ADA Business Enterprises Inc</BusinessNameLine1Txt>
        </OtherOrganizationName>
        <TransactionTypeTxt>L</TransactionTypeTxt>
        <InvolvedAmt>52650</InvolvedAmt>
        <MethodOfAmountDeterminationTxt>Cash Value</MethodOfAmountDeterminationTxt>
      </TransactionsRelatedOrgGrp>
      <TransactionsRelatedOrgGrp>
        <OtherOrganizationName>
          <BusinessNameLine1Txt>ADA Forsyth Institute</BusinessNameLine1Txt>
        </OtherOrganizationName>
        <TransactionTypeTxt>B</TransactionTypeTxt>
        <InvolvedAmt>14099473</InvolvedAmt>
        <MethodOfAmountDeterminationTxt>Cash Value</MethodOfAmountDeterminationTxt>
      </TransactionsRelatedOrgGrp>
    </IRS990ScheduleR>
  </ReturnData>
</Return>