<?xml version="1.0" encoding="utf-8"?>
<Return xmlns="http://www.irs.gov/efile" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://www.irs.gov/efile" returnVersion="2022v5.0">
  <ReturnHeader binaryAttachmentCnt="0">
    <ReturnTs>2023-06-23T07:13:39-05:00</ReturnTs>
    <TaxPeriodEndDt>2022-12-31</TaxPeriodEndDt>
    <PreparerFirmGrp>
      <PreparerFirmEIN>362787513</PreparerFirmEIN>
      <PreparerFirmName>
        <BusinessNameLine1Txt>CTM CPAS &amp; BUSINESS ADVISORS</BusinessNameLine1Txt>
      </PreparerFirmName>
      <PreparerUSAddress>
        <AddressLine1Txt>ONE OVERLOOK POINT SUITE 190</AddressLine1Txt>
        <CityNm>LINCOLNSHIRE</CityNm>
        <StateAbbreviationCd>IL</StateAbbreviationCd>
        <ZIPCd>60069</ZIPCd>
      </PreparerUSAddress>
    </PreparerFirmGrp>
    <ReturnTypeCd>990EZ</ReturnTypeCd>
    <TaxPeriodBeginDt>2022-01-01</TaxPeriodBeginDt>
    <Filer>
      <EIN>366086687</EIN>
      <BusinessName>
        <BusinessNameLine1Txt>ILLINOIS DENTAL HYGIENISTS' ASSOCIATION</BusinessNameLine1Txt>
      </BusinessName>
      <BusinessNameControlTxt>ILLI</BusinessNameControlTxt>
      <PhoneNum>3125051554</PhoneNum>
      <USAddress>
        <AddressLine1Txt>400 E RANDOLPH 2305</AddressLine1Txt>
        <CityNm>CHICAGO</CityNm>
        <StateAbbreviationCd>IL</StateAbbreviationCd>
        <ZIPCd>60601</ZIPCd>
      </USAddress>
    </Filer>
    <BusinessOfficerGrp>
      <PersonNm>KYM DALLSTREAM</PersonNm>
      <PersonTitleTxt>PRESIDENT</PersonTitleTxt>
      <PhoneNum>3125051554</PhoneNum>
      <SignatureDt>2023-06-09</SignatureDt>
      <DiscussWithPaidPreparerInd>1</DiscussWithPaidPreparerInd>
    </BusinessOfficerGrp>
    <SigningOfficerGrp>
      <PersonFullName>
        <PersonFirstNm>KYM</PersonFirstNm>
        <PersonLastNm>DALLSTREAM</PersonLastNm>
      </PersonFullName>
      <SSN>999009999</SSN>
    </SigningOfficerGrp>
    <IRSResponsiblePrtyInfoCurrInd>0</IRSResponsiblePrtyInfoCurrInd>
    <PreparerPersonGrp>
      <PreparerPersonNm>STEVEN EDELHEIT CPA CVA</PreparerPersonNm>
      <PTIN>P00162168</PTIN>
      <PhoneNum>8474441040</PhoneNum>
      <PreparationDt>2023-06-09</PreparationDt>
    </PreparerPersonGrp>
    <AdditionalFilerInformation>
      <TrustedCustomerGrp>
        <TrustedCustomerCd>2</TrustedCustomerCd>
        <AuthenticationAssuranceLevelCd>AAL1</AuthenticationAssuranceLevelCd>
        <IdentityAssuranceLevelCd>IAL1</IdentityAssuranceLevelCd>
      </TrustedCustomerGrp>
    </AdditionalFilerInformation>
    <TaxYr>2022</TaxYr>
    <BuildTS>2023-04-26 12:10:37Z</BuildTS>
  </ReturnHeader>
  <ReturnData documentCnt="4">
    <IRS990EZ documentId="RetDoc1234200001" referenceDocumentId="RetDoc1051800001 RetDoc2278000001">
      <MethodOfAccountingOtherDesc>MODIFIED CASH</MethodOfAccountingOtherDesc>
      <ScheduleBNotRequiredInd>X</ScheduleBNotRequiredInd>
      <WebsiteAddressTxt>WWW.IDHA.NET</WebsiteAddressTxt>
      <Organization501cInd organization501cTypeTxt="6">X</Organization501cInd>
      <TypeOfOrganizationCorpInd>X</TypeOfOrganizationCorpInd>
      <GrossReceiptsAmt>95463</GrossReceiptsAmt>
      <InfoInScheduleOPartIInd>X</InfoInScheduleOPartIInd>
      <ContributionsGiftsGrantsEtcAmt>20000</ContributionsGiftsGrantsEtcAmt>
      <ProgramServiceRevenueAmt>24995</ProgramServiceRevenueAmt>
      <MembershipDuesAmt>50458</MembershipDuesAmt>
      <InvestmentIncomeAmt>10</InvestmentIncomeAmt>
      <TotalRevenueAmt>95463</TotalRevenueAmt>
      <OtherExpensesTotalAmt>85216</OtherExpensesTotalAmt>
      <TotalExpensesAmt>85216</TotalExpensesAmt>
      <ExcessOrDeficitForYearAmt>10247</ExcessOrDeficitForYearAmt>
      <NetAssetsOrFundBalancesBOYAmt>278659</NetAssetsOrFundBalancesBOYAmt>
      <OtherChangesInNetAssetsAmt>0</OtherChangesInNetAssetsAmt>
      <NetAssetsOrFundBalancesEOYAmt>288906</NetAssetsOrFundBalancesEOYAmt>
      <CashSavingsAndInvestmentsGrp>
        <BOYAmt>278659</BOYAmt>
        <EOYAmt>288906</EOYAmt>
      </CashSavingsAndInvestmentsGrp>
      <Form990TotalAssetsGrp>
        <BOYAmt>278659</BOYAmt>
        <EOYAmt>288906</EOYAmt>
      </Form990TotalAssetsGrp>
      <SumOfTotalLiabilitiesGrp>
        <BOYAmt>0</BOYAmt>
        <EOYAmt>0</EOYAmt>
      </SumOfTotalLiabilitiesGrp>
      <NetAssetsOrFundBalancesGrp>
        <BOYAmt>278659</BOYAmt>
        <EOYAmt>288906</EOYAmt>
      </NetAssetsOrFundBalancesGrp>
      <PrimaryExemptPurposeTxt>DENTAL HYGIENTISTS' ASSOCIATION</PrimaryExemptPurposeTxt>
      <ProgramSrvcAccomplishmentGrp>
        <DescriptionProgramSrvcAccomTxt>APPROXIMATELY 625 MEMBERS FACILITATE THEIR PROFESSIONAL DEVELOPMENT THROUGH EDUCATIONAL AND TRAINING SESSIONS PROVIDED BY IDHA.</DescriptionProgramSrvcAccomTxt>
        <GrantsAndAllocationsAmt>0</GrantsAndAllocationsAmt>
        <ProgramServiceExpensesAmt>0</ProgramServiceExpensesAmt>
      </ProgramSrvcAccomplishmentGrp>
      <OfficerDirectorTrusteeEmplGrp>
        <PersonNm>TASIA WALKER</PersonNm>
        <TitleTxt>TREASURER</TitleTxt>
        <AverageHrsPerWkDevotedToPosRt>1.00</AverageHrsPerWkDevotedToPosRt>
        <CompensationAmt>0</CompensationAmt>
        <EmployeeBenefitProgramAmt>0</EmployeeBenefitProgramAmt>
        <ExpenseAccountOtherAllwncAmt>0</ExpenseAccountOtherAllwncAmt>
      </OfficerDirectorTrusteeEmplGrp>
      <OfficerDirectorTrusteeEmplGrp>
        <PersonNm>LYDIA PARK</PersonNm>
        <TitleTxt>PAST PRESIDENT</TitleTxt>
        <AverageHrsPerWkDevotedToPosRt>1.00</AverageHrsPerWkDevotedToPosRt>
        <CompensationAmt>0</CompensationAmt>
        <EmployeeBenefitProgramAmt>0</EmployeeBenefitProgramAmt>
        <ExpenseAccountOtherAllwncAmt>0</ExpenseAccountOtherAllwncAmt>
      </OfficerDirectorTrusteeEmplGrp>
      <OfficerDirectorTrusteeEmplGrp>
        <PersonNm>KYM DALLSTREAM</PersonNm>
        <TitleTxt>PRESIDENT</TitleTxt>
        <AverageHrsPerWkDevotedToPosRt>1.00</AverageHrsPerWkDevotedToPosRt>
        <CompensationAmt>0</CompensationAmt>
        <EmployeeBenefitProgramAmt>0</EmployeeBenefitProgramAmt>
        <ExpenseAccountOtherAllwncAmt>0</ExpenseAccountOtherAllwncAmt>
      </OfficerDirectorTrusteeEmplGrp>
      <OfficerDirectorTrusteeEmplGrp>
        <PersonNm>LORI MCNAMARA</PersonNm>
        <TitleTxt>PRESIDENT ELECT</TitleTxt>
        <AverageHrsPerWkDevotedToPosRt>1.00</AverageHrsPerWkDevotedToPosRt>
        <CompensationAmt>0</CompensationAmt>
        <EmployeeBenefitProgramAmt>0</EmployeeBenefitProgramAmt>
        <ExpenseAccountOtherAllwncAmt>0</ExpenseAccountOtherAllwncAmt>
      </OfficerDirectorTrusteeEmplGrp>
      <OfficerDirectorTrusteeEmplGrp>
        <PersonNm>MONICA BALDWIN</PersonNm>
        <TitleTxt>SECRETARY</TitleTxt>
        <AverageHrsPerWkDevotedToPosRt>1.00</AverageHrsPerWkDevotedToPosRt>
        <CompensationAmt>0</CompensationAmt>
        <EmployeeBenefitProgramAmt>0</EmployeeBenefitProgramAmt>
        <ExpenseAccountOtherAllwncAmt>0</ExpenseAccountOtherAllwncAmt>
      </OfficerDirectorTrusteeEmplGrp>
      <OfficerDirectorTrusteeEmplGrp>
        <PersonNm>MARTHA RAMIREZ</PersonNm>
        <TitleTxt>ASSEMBLY CHAIR</TitleTxt>
        <AverageHrsPerWkDevotedToPosRt>1.00</AverageHrsPerWkDevotedToPosRt>
        <CompensationAmt>0</CompensationAmt>
        <EmployeeBenefitProgramAmt>0</EmployeeBenefitProgramAmt>
        <ExpenseAccountOtherAllwncAmt>0</ExpenseAccountOtherAllwncAmt>
      </OfficerDirectorTrusteeEmplGrp>
      <InfoInScheduleOPartVInd>X</InfoInScheduleOPartVInd>
      <ActivitiesNotPreviouslyRptInd>0</ActivitiesNotPreviouslyRptInd>
      <ChgMadeToOrgnzngDocNotRptInd>0</ChgMadeToOrgnzngDocNotRptInd>
      <OrganizationHadUBIInd>0</OrganizationHadUBIInd>
      <SubjectToProxyTaxInd referenceDocumentId="RetDoc1039700001">1</SubjectToProxyTaxInd>
      <OrganizationDissolvedEtcInd>0</OrganizationDissolvedEtcInd>
      <DirectIndirectPltclExpendAmt>0</DirectIndirectPltclExpendAmt>
      <MadeLoansToFromOfficersInd>0</MadeLoansToFromOfficersInd>
      <ProhibitedTaxShelterTransInd>0</ProhibitedTaxShelterTransInd>
      <BooksInCareOfDetail>
        <BusinessName>
          <BusinessNameLine1Txt>ED GRAZIANO</BusinessNameLine1Txt>
        </BusinessName>
        <USAddress>
          <AddressLine1Txt>400 E RANDOLPH STE 2305</AddressLine1Txt>
          <CityNm>CHICAGO</CityNm>
          <StateAbbreviationCd>IL</StateAbbreviationCd>
          <ZIPCd>60601</ZIPCd>
        </USAddress>
        <PhoneNum>8886844222</PhoneNum>
      </BooksInCareOfDetail>
      <ForeignFinancialAccountInd>0</ForeignFinancialAccountInd>
      <ForeignOfficeInd>0</ForeignOfficeInd>
      <DonorAdvisedFndsInd>0</DonorAdvisedFndsInd>
      <OperateHospitalInd>0</OperateHospitalInd>
      <TanningServicesProvidedInd>0</TanningServicesProvidedInd>
      <RelatedOrganizationCtrlEntInd>0</RelatedOrganizationCtrlEntInd>
      <PoliticalCampaignActyInd referenceDocumentId="RetDoc1039700001">0</PoliticalCampaignActyInd>
    </IRS990EZ>
    <IRS990ScheduleC documentId="RetDoc1039700001">
      <SubstantiallyAllDuesNondedInd>0</SubstantiallyAllDuesNondedInd>
      <OnlyInHouseLobbyingInd>0</OnlyInHouseLobbyingInd>
      <AgreeCarryoverPriorYearInd>0</AgreeCarryoverPriorYearInd>
      <DuesAssessmentsAmt>50459</DuesAssessmentsAmt>
      <NonDeductibleLbbyngPltclCYAmt>18000</NonDeductibleLbbyngPltclCYAmt>
      <NonDeductibleLbbyngPltclTotAmt>18000</NonDeductibleLbbyngPltclTotAmt>
      <AggregateReportedDuesNtcAmt>18000</AggregateReportedDuesNtcAmt>
    </IRS990ScheduleC>
    <IRS990ScheduleO documentId="RetDoc1051800001">
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>FORM 990-EZ, PART I, LINE 4 - OTHER INVESTMENT INCOME</FormAndLineReferenceDesc>
        <ExplanationTxt>DESCRIPTION: INTEREST. AMOUNT: 10.</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>FORM 990-EZ, PART I, LINE 16 - OTHER EXPENSES</FormAndLineReferenceDesc>
        <ExplanationTxt>DESCRIPTION: MEETINGS AND ADMINISTRATION. AMOUNT: 33,389. DESCRIPTION: GOVERNMENT RELATIONS EXPENSE. AMOUNT: 18,218. DESCRIPTION: ANNUAL SESSION EXPENSE. AMOUNT: 15,977. DESCRIPTION: EDUCATION AND TRAINING. AMOUNT: 200. DESCRIPTION: PUBLIC RELATIONS/ MEMBERSHIP EXPENSE. AMOUNT: 3,080. DESCRIPTION: COMPONENT EXPENSE. AMOUNT: 14,171. DESCRIPTION: DONATION/CONTINGENCY FUND. AMOUNT: 181. TOTAL TO FORM 990-EZ, LINE 16: 85,216.</ExplanationTxt>
      </SupplementalInformationDetail>
    </IRS990ScheduleO>
    <TransferPrsnlBnftContractsDecl documentId="RetDoc2278000001">
      <DeclarationDesc>THE ORGANIZATION DID NOT, DURING THE YEAR, RECEIVE ANY FUNDS, DIRECTLY,OR INDIRECTLY, TO PAY PREMIUMS ON A PERSONAL BENEFIT CONTRACT.THE ORGANIZATION, DID NOT, DURING THE YEAR, PAY ANY PREMIUMS, DIRECTLY,OR INDIRECTLY, ON A PERSONAL BENEFIT CONTRACT.</DeclarationDesc>
    </TransferPrsnlBnftContractsDecl>
  </ReturnData>
</Return>
