﻿<?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="2011v1.2">
  <ReturnHeader binaryAttachmentCount="0">
    <Timestamp>2012-11-12T10:47:19-06:00</Timestamp>
    <TaxPeriodEndDate>2011-12-31</TaxPeriodEndDate>
    <PreparerFirm>
      <EIN>010494526</EIN>
      <PreparerFirmBusinessName>
        <BusinessNameLine1>BAKER NEWMAN &amp; NOYES LLC</BusinessNameLine1>
      </PreparerFirmBusinessName>
      <PreparerFirmUSAddress>
        <AddressLine1>650 ELM STREET SUITE 302</AddressLine1>
        <City>MANCHESTER</City>
        <State>NH</State>
        <ZIPCode>03101</ZIPCode>
      </PreparerFirmUSAddress>
    </PreparerFirm>
    <ReturnType>990</ReturnType>
    <TaxPeriodBeginDate>2011-01-01</TaxPeriodBeginDate>
    <Filer>
      <EIN>010286541</EIN>
      <Name>
        <BusinessNameLine1>Maine Dental Service Corporation</BusinessNameLine1>
      </Name>
      <NameControl>MAIN</NameControl>
      <Phone>6032231000</Phone>
      <USAddress>
        <AddressLine1>PO Box 2002</AddressLine1>
        <City>Concord</City>
        <State>NH</State>
        <ZIPCode>033022002</ZIPCode>
      </USAddress>
    </Filer>
    <Officer>
      <Name>Thomas Raffio</Name>
      <Title>President &amp; CEO</Title>
      <Phone>6032231000</Phone>
      <DateSigned>2012-11-07</DateSigned>
    </Officer>
    <Preparer>
      <Name>E Drew Cheney</Name>
      <PTIN>P00182972</PTIN>
      <Phone>8002447444</Phone>
    </Preparer>
    <TaxYear>2011</TaxYear>
    <BuildTS>2016-02-24 21:20:13Z</BuildTS>
  </ReturnHeader>
  <ReturnData documentCount="6">
    <IRS990 documentId="RetDoc1038000001" referenceDocumentId="RetDoc1044400001">
      <DoingBusinessAs>
        <BusinessNameLine1>Delta Dental Plan of Maine</BusinessNameLine1>
      </DoingBusinessAs>
      <NameOfPrincipalOfficerPerson>Thomas Raffio</NameOfPrincipalOfficerPerson>
      <AddressPrincipalOfficerUS>
        <AddressLine1>PO Box 2002</AddressLine1>
        <City>Concord</City>
        <State>NH</State>
        <ZIPCode>033022002</ZIPCode>
      </AddressPrincipalOfficerUS>
      <GrossReceipts>86634744</GrossReceipts>
      <GroupReturnForAffiliates>0</GroupReturnForAffiliates>
      <Organization501c typeOf501cOrganization="4">X</Organization501c>
      <WebSite>www.nedelta.com</WebSite>
      <TypeOfOrganizationCorporation>X</TypeOfOrganizationCorporation>
      <YearFormation>1965</YearFormation>
      <StateLegalDomicile>ME</StateLegalDomicile>
      <ActivityOrMissionDescription>Provides programs of dental care</ActivityOrMissionDescription>
      <NbrVotingMembersGoverningBody>15</NbrVotingMembersGoverningBody>
      <NbrIndependentVotingMembers>11</NbrIndependentVotingMembers>
      <TotalNbrEmployees>0</TotalNbrEmployees>
      <TotalNbrVolunteers>0</TotalNbrVolunteers>
      <TotalGrossUBI>100000</TotalGrossUBI>
      <NetUnrelatedBusinessTxblIncome>0</NetUnrelatedBusinessTxblIncome>
      <ContributionsGrantsPriorYear>0</ContributionsGrantsPriorYear>
      <ContributionsGrantsCurrentYear>0</ContributionsGrantsCurrentYear>
      <ProgramServiceRevenuePriorYear>79348867</ProgramServiceRevenuePriorYear>
      <ProgramServiceRevenueCY>84215765</ProgramServiceRevenueCY>
      <InvestmentIncomePriorYear>945828</InvestmentIncomePriorYear>
      <InvestmentIncomeCurrentYear>861255</InvestmentIncomeCurrentYear>
      <OtherRevenuePriorYear>98446</OtherRevenuePriorYear>
      <OtherRevenueCurrentYear>0</OtherRevenueCurrentYear>
      <TotalRevenuePriorYear>80393141</TotalRevenuePriorYear>
      <TotalRevenueCurrentYear>85077020</TotalRevenueCurrentYear>
      <GrantsAndSimilarAmntsPriorYear>260300</GrantsAndSimilarAmntsPriorYear>
      <GrantsAndSimilarAmntsCY>177500</GrantsAndSimilarAmntsCY>
      <BenefitsPaidToMembersPriorYear>67908059</BenefitsPaidToMembersPriorYear>
      <BenefitsPaidToMembersCY>71346081</BenefitsPaidToMembersCY>
      <SalariesEtcPriorYear>600925</SalariesEtcPriorYear>
      <SalariesEtcCurrentYear>694086</SalariesEtcCurrentYear>
      <TotalProfFundrsngExpPriorYear>0</TotalProfFundrsngExpPriorYear>
      <TotalProfFundrsngExpCY>0</TotalProfFundrsngExpCY>
      <TotalFundrsngExpCurrentYear>0</TotalFundrsngExpCurrentYear>
      <OtherExpensePriorYear>9495323</OtherExpensePriorYear>
      <OtherExpensesCurrentYear>10440191</OtherExpensesCurrentYear>
      <TotalExpensesPriorYear>78264607</TotalExpensesPriorYear>
      <TotalExpensesCurrentYear>82657858</TotalExpensesCurrentYear>
      <RevenuesLessExpensesPriorYear>2128534</RevenuesLessExpensesPriorYear>
      <RevenuesLessExpensesCY>2419162</RevenuesLessExpensesCY>
      <TotalAssetsBOY>37526646</TotalAssetsBOY>
      <TotalAssetsEOY>38837687</TotalAssetsEOY>
      <TotalLiabilitiesBOY>6692018</TotalLiabilitiesBOY>
      <TotalLiabilitiesEOY>5817832</TotalLiabilitiesEOY>
      <NetAssetsOrFundBalancesBOY>30834628</NetAssetsOrFundBalancesBOY>
      <NetAssetsOrFundBalancesEOY>33019855</NetAssetsOrFundBalancesEOY>
      <MissionDescription>It is our mission to be the leading force in the dental prepayment market by offering quality, versatile and affordable dental programs to benefit our purchasers, subscribers, and participating member dentists.</MissionDescription>
      <SignificantNewProgramServices>0</SignificantNewProgramServices>
      <SignificantChange>0</SignificantChange>
      <Expense>74457863</Expense>
      <Revenue>84115765</Revenue>
      <Description>Program services include the processing and payment of claims for dental benefits for various organizations. Approximately 442,200 claims were processed in 2011. There are approximately 225,000 members included in the various plans.</Description>
      <Activity2>
        <Expense>177500</Expense>
        <Grants>177500</Grants>
        <Description>Portion of donation pledge to University of New England to build a new dental school ($6,000).Contributions to Northeast Delta Dental Foundation ($171,500).</Description>
      </Activity2>
      <TotalProgramServiceExpense>74635363</TotalProgramServiceExpense>
      <DescribedIn501C3>0</DescribedIn501C3>
      <ScheduleBRequired>0</ScheduleBRequired>
      <PoliticalActivities>0</PoliticalActivities>
      <SubjectToProxyTax>0</SubjectToProxyTax>
      <DonorAdvisedFunds referenceDocumentId="RetDoc1040000001">0</DonorAdvisedFunds>
      <ConservationEasements referenceDocumentId="RetDoc1040000001">0</ConservationEasements>
      <CollectionsOfArt referenceDocumentId="RetDoc1040000001">0</CollectionsOfArt>
      <CreditCounseling referenceDocumentId="RetDoc1040000001">0</CreditCounseling>
      <TermOrPermanentEndowments referenceDocumentId="RetDoc1040000001">0</TermOrPermanentEndowments>
      <ReportLandBldgEquip referenceDocumentId="RetDoc1040000001">1</ReportLandBldgEquip>
      <ReportInvestOthSecurities referenceDocumentId="RetDoc1040000001">0</ReportInvestOthSecurities>
      <ReportProgRelInvest referenceDocumentId="RetDoc1040000001">0</ReportProgRelInvest>
      <ReportOtherAssets referenceDocumentId="RetDoc1040000001">0</ReportOtherAssets>
      <ReportOtherLiabilities referenceDocumentId="RetDoc1040000001">1</ReportOtherLiabilities>
      <ReportFin48Footnote referenceDocumentId="RetDoc1040000001">1</ReportFin48Footnote>
      <IndependentAuditFinancialStmt referenceDocumentId="RetDoc1040000001">1</IndependentAuditFinancialStmt>
      <ConsolidatedAuditFinancialStmt referenceDocumentId="RetDoc1040000001">0</ConsolidatedAuditFinancialStmt>
      <School>0</School>
      <ForeignOffice>0</ForeignOffice>
      <ForeignActivities>0</ForeignActivities>
      <MoreThan5000KToOrganizations>0</MoreThan5000KToOrganizations>
      <MoreThan5000KToIndividuals>0</MoreThan5000KToIndividuals>
      <ProfessionalFundraising>0</ProfessionalFundraising>
      <FundraisingActivities>0</FundraisingActivities>
      <Gaming>0</Gaming>
      <Hospital>0</Hospital>
      <GrantsToOrganizations referenceDocumentId="RetDoc1041900001">1</GrantsToOrganizations>
      <GrantsToIndividuals referenceDocumentId="RetDoc1041900001">0</GrantsToIndividuals>
      <ScheduleJRequired referenceDocumentId="RetDoc1042400001">1</ScheduleJRequired>
      <TaxExemptBonds>0</TaxExemptBonds>
      <ExcessBenefitTransaction referenceDocumentId="RetDoc1042800001">0</ExcessBenefitTransaction>
      <PriorExcessBenefitTransaction referenceDocumentId="RetDoc1042800001">0</PriorExcessBenefitTransaction>
      <LoanToOfficerOrDQP referenceDocumentId="RetDoc1042800001">0</LoanToOfficerOrDQP>
      <GrantToRelatedPerson referenceDocumentId="RetDoc1042800001">0</GrantToRelatedPerson>
      <BsnssRltnshpWithOrganization referenceDocumentId="RetDoc1042800001">1</BsnssRltnshpWithOrganization>
      <BsnssRltnshpThruFamilyMember referenceDocumentId="RetDoc1042800001">0</BsnssRltnshpThruFamilyMember>
      <OfficerEntityWithBsnssRltnshp referenceDocumentId="RetDoc1042800001">1</OfficerEntityWithBsnssRltnshp>
      <DeductibleNonCashContributions>0</DeductibleNonCashContributions>
      <DeductibleContributionsOfArt>0</DeductibleContributionsOfArt>
      <Terminated>0</Terminated>
      <PartialLiquidation>0</PartialLiquidation>
      <DisregardedEntity>0</DisregardedEntity>
      <RelatedEntity>0</RelatedEntity>
      <RelatedOrgControlledEntity>0</RelatedOrgControlledEntity>
      <TransactionRelatedEntity>0</TransactionRelatedEntity>
      <ActivitiesConductedPartnership>0</ActivitiesConductedPartnership>
      <ScheduleORequired>1</ScheduleORequired>
      <NumberFormsTransmittedWith1096>194</NumberFormsTransmittedWith1096>
      <NumberW2GIncluded>0</NumberW2GIncluded>
      <ComplianceWithBackupWitholding>1</ComplianceWithBackupWitholding>
      <NumberOfEmployees>0</NumberOfEmployees>
      <UnrelatedBusinessIncome>1</UnrelatedBusinessIncome>
      <Form990-TFiled>1</Form990-TFiled>
      <ForeignFinancialAccount>0</ForeignFinancialAccount>
      <ProhibitedTaxShelterTrans>0</ProhibitedTaxShelterTrans>
      <TaxablePartyNotification>0</TaxablePartyNotification>
      <NonDeductibleContributions>0</NonDeductibleContributions>
      <IndoorTanningServices>0</IndoorTanningServices>
      <InfoInScheduleOPartVI>X</InfoInScheduleOPartVI>
      <NbrVotingGoverningBodyMembers>15</NbrVotingGoverningBodyMembers>
      <NumberIndependentVotingMembers>11</NumberIndependentVotingMembers>
      <FamilyOrBusinessRelationship>0</FamilyOrBusinessRelationship>
      <DelegationOfManagementDuties>0</DelegationOfManagementDuties>
      <ChangesToOrganizingDocs>0</ChangesToOrganizingDocs>
      <MaterialDiversionOrMisuse>0</MaterialDiversionOrMisuse>
      <MembersOrStockholders>0</MembersOrStockholders>
      <ElectionOfBoardMembers>0</ElectionOfBoardMembers>
      <DecisionsSubjectToApproval>0</DecisionsSubjectToApproval>
      <MinutesOfGoverningBody>1</MinutesOfGoverningBody>
      <MinutesOfCommittees>1</MinutesOfCommittees>
      <OfficerMailingAddress>0</OfficerMailingAddress>
      <LocalChapters>0</LocalChapters>
      <Form990ProvidedToGoverningBody>1</Form990ProvidedToGoverningBody>
      <ConflictOfInterestPolicy>1</ConflictOfInterestPolicy>
      <AnnualDisclosureCoveredPersons>1</AnnualDisclosureCoveredPersons>
      <RegularMonitoringEnforcement>1</RegularMonitoringEnforcement>
      <WhistleblowerPolicy>1</WhistleblowerPolicy>
      <DocumentRetentionPolicy>1</DocumentRetentionPolicy>
      <CompensationProcessCEO>0</CompensationProcessCEO>
      <CompensationProcessOther>0</CompensationProcessOther>
      <InvestmentInJointVenture>0</InvestmentInJointVenture>
      <UponRequest>X</UponRequest>
      <TheBooksAreInCareOf>
        <NameBusiness>
          <BusinessNameLine1>Frank Boucher</BusinessNameLine1>
        </NameBusiness>
        <TelephoneNumber>6032231000</TelephoneNumber>
        <AddressUS>
          <AddressLine1>One Delta Drive PO Box 2002</AddressLine1>
          <City>Concord</City>
          <State>NH</State>
          <ZIPCode>03302</ZIPCode>
        </AddressUS>
      </TheBooksAreInCareOf>
      <Form990PartVIISectionA>
        <NamePerson>DOUGLAS C TERP</NamePerson>
        <Title>CHAIR &amp; DIRECTOR</Title>
        <AverageHoursPerWeek>3.00</AverageHoursPerWeek>
        <IndividualTrusteeOrDirector>X</IndividualTrusteeOrDirector>
        <Officer>X</Officer>
        <ReportableCompFromOrganization>18607</ReportableCompFromOrganization>
        <ReportableCompFromRelatedOrgs>0</ReportableCompFromRelatedOrgs>
        <OtherCompensation>0</OtherCompensation>
      </Form990PartVIISectionA>
      <Form990PartVIISectionA>
        <NamePerson>BARRY C SALTZ DDS</NamePerson>
        <Title>TREASURER &amp; DIRECTOR</Title>
        <AverageHoursPerWeek>3.00</AverageHoursPerWeek>
        <IndividualTrusteeOrDirector>X</IndividualTrusteeOrDirector>
        <Officer>X</Officer>
        <ReportableCompFromOrganization>4878</ReportableCompFromOrganization>
        <ReportableCompFromRelatedOrgs>0</ReportableCompFromRelatedOrgs>
        <OtherCompensation>0</OtherCompensation>
      </Form990PartVIISectionA>
      <Form990PartVIISectionA>
        <NamePerson>STEPHEN G MORSE DMD</NamePerson>
        <Title>VICE CHAIR &amp; DIRECTOR</Title>
        <AverageHoursPerWeek>3.00</AverageHoursPerWeek>
        <IndividualTrusteeOrDirector>X</IndividualTrusteeOrDirector>
        <Officer>X</Officer>
        <ReportableCompFromOrganization>5259</ReportableCompFromOrganization>
        <ReportableCompFromRelatedOrgs>0</ReportableCompFromRelatedOrgs>
        <OtherCompensation>0</OtherCompensation>
      </Form990PartVIISectionA>
      <Form990PartVIISectionA>
        <NamePerson>BEVERLY ATTENBURG</NamePerson>
        <Title>DIRECTOR</Title>
        <AverageHoursPerWeek>3.00</AverageHoursPerWeek>
        <IndividualTrusteeOrDirector>X</IndividualTrusteeOrDirector>
        <ReportableCompFromOrganization>5259</ReportableCompFromOrganization>
        <ReportableCompFromRelatedOrgs>0</ReportableCompFromRelatedOrgs>
        <OtherCompensation>0</OtherCompensation>
      </Form990PartVIISectionA>
      <Form990PartVIISectionA>
        <NamePerson>KEVIN C BAACK PHD</NamePerson>
        <Title>DIRECTOR</Title>
        <AverageHoursPerWeek>3.00</AverageHoursPerWeek>
        <IndividualTrusteeOrDirector>X</IndividualTrusteeOrDirector>
        <ReportableCompFromOrganization>6221</ReportableCompFromOrganization>
        <ReportableCompFromRelatedOrgs>0</ReportableCompFromRelatedOrgs>
        <OtherCompensation>0</OtherCompensation>
      </Form990PartVIISectionA>
      <Form990PartVIISectionA>
        <NamePerson>DAVID L BAGDASARIAN DDS</NamePerson>
        <Title>DIRECTOR</Title>
        <AverageHoursPerWeek>3.00</AverageHoursPerWeek>
        <IndividualTrusteeOrDirector>X</IndividualTrusteeOrDirector>
        <ReportableCompFromOrganization>6371</ReportableCompFromOrganization>
        <ReportableCompFromRelatedOrgs>0</ReportableCompFromRelatedOrgs>
        <OtherCompensation>0</OtherCompensation>
      </Form990PartVIISectionA>
      <Form990PartVIISectionA>
        <NamePerson>CHERYL BASCOMB</NamePerson>
        <Title>DIRECTOR</Title>
        <AverageHoursPerWeek>3.00</AverageHoursPerWeek>
        <IndividualTrusteeOrDirector>X</IndividualTrusteeOrDirector>
        <ReportableCompFromOrganization>5740</ReportableCompFromOrganization>
        <ReportableCompFromRelatedOrgs>0</ReportableCompFromRelatedOrgs>
        <OtherCompensation>0</OtherCompensation>
      </Form990PartVIISectionA>
      <Form990PartVIISectionA>
        <NamePerson>MARYELLEN BEAULIEU EDD MPH RDH</NamePerson>
        <Title>DIRECTOR</Title>
        <AverageHoursPerWeek>3.00</AverageHoursPerWeek>
        <IndividualTrusteeOrDirector>X</IndividualTrusteeOrDirector>
        <ReportableCompFromOrganization>5259</ReportableCompFromOrganization>
        <ReportableCompFromRelatedOrgs>0</ReportableCompFromRelatedOrgs>
        <OtherCompensation>0</OtherCompensation>
      </Form990PartVIISectionA>
      <Form990PartVIISectionA>
        <NamePerson>MICHAEL P GOLDBERG DMD</NamePerson>
        <Title>DIRECTOR</Title>
        <AverageHoursPerWeek>3.00</AverageHoursPerWeek>
        <IndividualTrusteeOrDirector>X</IndividualTrusteeOrDirector>
        <ReportableCompFromOrganization>8776</ReportableCompFromOrganization>
        <ReportableCompFromRelatedOrgs>0</ReportableCompFromRelatedOrgs>
        <OtherCompensation>0</OtherCompensation>
      </Form990PartVIISectionA>
      <Form990PartVIISectionA>
        <NamePerson>CYNTHIA H HAMILTON</NamePerson>
        <Title>DIRECTOR</Title>
        <AverageHoursPerWeek>3.00</AverageHoursPerWeek>
        <IndividualTrusteeOrDirector>X</IndividualTrusteeOrDirector>
        <ReportableCompFromOrganization>5635</ReportableCompFromOrganization>
        <ReportableCompFromRelatedOrgs>0</ReportableCompFromRelatedOrgs>
        <OtherCompensation>0</OtherCompensation>
      </Form990PartVIISectionA>
      <Form990PartVIISectionA>
        <NamePerson>DEMITROULA KOUZOUNAS DMD</NamePerson>
        <Title>DIRECTOR</Title>
        <AverageHoursPerWeek>3.00</AverageHoursPerWeek>
        <IndividualTrusteeOrDirector>X</IndividualTrusteeOrDirector>
        <ReportableCompFromOrganization>5756</ReportableCompFromOrganization>
        <ReportableCompFromRelatedOrgs>0</ReportableCompFromRelatedOrgs>
        <OtherCompensation>0</OtherCompensation>
      </Form990PartVIISectionA>
      <Form990PartVIISectionA>
        <NamePerson>MARTHA M LAWRENCE DDS</NamePerson>
        <Title>DIRECTOR</Title>
        <AverageHoursPerWeek>3.00</AverageHoursPerWeek>
        <IndividualTrusteeOrDirector>X</IndividualTrusteeOrDirector>
        <ReportableCompFromOrganization>6221</ReportableCompFromOrganization>
        <ReportableCompFromRelatedOrgs>0</ReportableCompFromRelatedOrgs>
        <OtherCompensation>0</OtherCompensation>
      </Form990PartVIISectionA>
      <Form990PartVIISectionA>
        <NamePerson>CHARLES BROWN</NamePerson>
        <Title>DIRECTOR</Title>
        <AverageHoursPerWeek>3.00</AverageHoursPerWeek>
        <IndividualTrusteeOrDirector>X</IndividualTrusteeOrDirector>
        <ReportableCompFromOrganization>6718</ReportableCompFromOrganization>
        <ReportableCompFromRelatedOrgs>0</ReportableCompFromRelatedOrgs>
        <OtherCompensation>0</OtherCompensation>
      </Form990PartVIISectionA>
      <Form990PartVIISectionA>
        <NamePerson>MICHAEL W PARDUE</NamePerson>
        <Title>DIRECTOR</Title>
        <AverageHoursPerWeek>3.00</AverageHoursPerWeek>
        <IndividualTrusteeOrDirector>X</IndividualTrusteeOrDirector>
        <ReportableCompFromOrganization>4329</ReportableCompFromOrganization>
        <ReportableCompFromRelatedOrgs>0</ReportableCompFromRelatedOrgs>
        <OtherCompensation>0</OtherCompensation>
      </Form990PartVIISectionA>
      <Form990PartVIISectionA>
        <NamePerson>DANIEL THAYER</NamePerson>
        <Title>DIRECTOR</Title>
        <AverageHoursPerWeek>3.00</AverageHoursPerWeek>
        <IndividualTrusteeOrDirector>X</IndividualTrusteeOrDirector>
        <ReportableCompFromOrganization>6221</ReportableCompFromOrganization>
        <ReportableCompFromRelatedOrgs>0</ReportableCompFromRelatedOrgs>
        <OtherCompensation>0</OtherCompensation>
      </Form990PartVIISectionA>
      <Form990PartVIISectionA>
        <NamePerson>THOMAS RAFFIO - DDPNH</NamePerson>
        <Title>PRESIDENT &amp; CEO</Title>
        <AverageHoursPerWeek>10.00</AverageHoursPerWeek>
        <Officer>X</Officer>
        <ReportableCompFromOrganization>0</ReportableCompFromOrganization>
        <ReportableCompFromRelatedOrgs>708515</ReportableCompFromRelatedOrgs>
        <OtherCompensation>135902</OtherCompensation>
      </Form990PartVIISectionA>
      <Form990PartVIISectionA>
        <NamePerson>HELEN T BIGLIN - DDPNH</NamePerson>
        <Title>SR. VICE PRESIDENT (PART YEAR)</Title>
        <AverageHoursPerWeek>10.00</AverageHoursPerWeek>
        <Officer>X</Officer>
        <ReportableCompFromOrganization>0</ReportableCompFromOrganization>
        <ReportableCompFromRelatedOrgs>152378</ReportableCompFromRelatedOrgs>
        <OtherCompensation>23041</OtherCompensation>
      </Form990PartVIISectionA>
      <Form990PartVIISectionA>
        <NamePerson>FRANCIS BOUCHER - DDPNH</NamePerson>
        <Title>SR. VICE PRESIDENT (PART YEAR)</Title>
        <AverageHoursPerWeek>10.00</AverageHoursPerWeek>
        <Officer>X</Officer>
        <ReportableCompFromOrganization>0</ReportableCompFromOrganization>
        <ReportableCompFromRelatedOrgs>121453</ReportableCompFromRelatedOrgs>
        <OtherCompensation>16312</OtherCompensation>
      </Form990PartVIISectionA>
      <Form990PartVIISectionA>
        <NamePerson>BENJAMIN E MARCUS ESQ</NamePerson>
        <Title>CLERK</Title>
        <AverageHoursPerWeek>2.00</AverageHoursPerWeek>
        <Officer>X</Officer>
        <ReportableCompFromOrganization>0</ReportableCompFromOrganization>
        <ReportableCompFromRelatedOrgs>0</ReportableCompFromRelatedOrgs>
        <OtherCompensation>0</OtherCompensation>
      </Form990PartVIISectionA>
      <TotalReportableCompFromOrg>101250</TotalReportableCompFromOrg>
      <TotalReportableCompFrmRltdOrgs>982346</TotalReportableCompFrmRltdOrgs>
      <TotalOtherCompensation>175255</TotalOtherCompensation>
      <NumberIndividualsGT100K>0</NumberIndividualsGT100K>
      <FormersListed>0</FormersListed>
      <TotalCompGT150K>1</TotalCompGT150K>
      <CompensationFromOtherSources>1</CompensationFromOtherSources>
      <ContractorCompensation>
        <NameOfContractor>
          <NameBusiness>
            <BusinessNameLine1>TD Insurance Inc</BusinessNameLine1>
          </NameBusiness>
        </NameOfContractor>
        <AddressOfContractor>
          <AddressUS>
            <AddressLine1>PO Box 406 OTS</AddressLine1>
            <City>Portland</City>
            <State>ME</State>
            <ZIPCode>04112</ZIPCode>
          </AddressUS>
        </AddressOfContractor>
        <DescriptionOfServices>Insurance broker commissions</DescriptionOfServices>
        <Compensation>288224</Compensation>
      </ContractorCompensation>
      <ContractorCompensation>
        <NameOfContractor>
          <NameBusiness>
            <BusinessNameLine1>Combined Services LLC</BusinessNameLine1>
          </NameBusiness>
        </NameOfContractor>
        <AddressOfContractor>
          <AddressUS>
            <AddressLine1>2 Delta Drive</AddressLine1>
            <City>Concord</City>
            <State>NH</State>
            <ZIPCode>03301</ZIPCode>
          </AddressUS>
        </AddressOfContractor>
        <DescriptionOfServices>Insurance broker commissions</DescriptionOfServices>
        <Compensation>251327</Compensation>
      </ContractorCompensation>
      <ContractorCompensation>
        <NameOfContractor>
          <NameBusiness>
            <BusinessNameLine1>The Holden Agency</BusinessNameLine1>
          </NameBusiness>
        </NameOfContractor>
        <AddressOfContractor>
          <AddressUS>
            <AddressLine1>1085 Brighton Avenue</AddressLine1>
            <City>Portland</City>
            <State>ME</State>
            <ZIPCode>04104</ZIPCode>
          </AddressUS>
        </AddressOfContractor>
        <DescriptionOfServices>Insurance broker commissions</DescriptionOfServices>
        <Compensation>231704</Compensation>
      </ContractorCompensation>
      <ContractorCompensation>
        <NameOfContractor>
          <NameBusiness>
            <BusinessNameLine1>The Bay Agency</BusinessNameLine1>
          </NameBusiness>
        </NameOfContractor>
        <AddressOfContractor>
          <AddressUS>
            <AddressLine1>520 Ocean Street</AddressLine1>
            <City>South Portland</City>
            <State>ME</State>
            <ZIPCode>04106</ZIPCode>
          </AddressUS>
        </AddressOfContractor>
        <DescriptionOfServices>Insurance broker commissions</DescriptionOfServices>
        <Compensation>151438</Compensation>
      </ContractorCompensation>
      <ContractorCompensation>
        <NameOfContractor>
          <NameBusiness>
            <BusinessNameLine1>Acadia Benefits Inc</BusinessNameLine1>
          </NameBusiness>
        </NameOfContractor>
        <AddressOfContractor>
          <AddressUS>
            <AddressLine1>111 Commercial Street</AddressLine1>
            <City>Portland</City>
            <State>ME</State>
            <ZIPCode>04101</ZIPCode>
          </AddressUS>
        </AddressOfContractor>
        <DescriptionOfServices>Insurance broker commissions</DescriptionOfServices>
        <Compensation>142040</Compensation>
      </ContractorCompensation>
      <NumberOfContractorsGT100K>8</NumberOfContractorsGT100K>
      <ProgramServiceRevenue>
        <Description>Premium Revenue</Description>
        <BusinessCode>524114</BusinessCode>
        <TotalRevenueColumn>52787609</TotalRevenueColumn>
        <RelatedOrExemptFunctionIncome>52787609</RelatedOrExemptFunctionIncome>
      </ProgramServiceRevenue>
      <ProgramServiceRevenue>
        <Description>Admin Service Contract</Description>
        <BusinessCode>524292</BusinessCode>
        <TotalRevenueColumn>31328156</TotalRevenueColumn>
        <RelatedOrExemptFunctionIncome>31328156</RelatedOrExemptFunctionIncome>
      </ProgramServiceRevenue>
      <ProgramServiceRevenue>
        <Description>Management Fee - CSLLC</Description>
        <BusinessCode>524298</BusinessCode>
        <TotalRevenueColumn>100000</TotalRevenueColumn>
        <UnrelatedBusinessRevenue>100000</UnrelatedBusinessRevenue>
      </ProgramServiceRevenue>
      <TotalProgramServiceRevenue>84215765</TotalProgramServiceRevenue>
      <InvestmentIncome>
        <TotalRevenueColumn>639117</TotalRevenueColumn>
        <ExclusionAmount>639117</ExclusionAmount>
      </InvestmentIncome>
      <GrossAmountSalesAssets>
        <Securities>1779862</Securities>
      </GrossAmountSalesAssets>
      <LessCostOthBasisSalesExpenses>
        <Securities>1557724</Securities>
      </LessCostOthBasisSalesExpenses>
      <GainOrLoss>
        <Securities>222138</Securities>
      </GainOrLoss>
      <NetGainOrLossInvestments>
        <TotalRevenueColumn>222138</TotalRevenueColumn>
        <ExclusionAmount>222138</ExclusionAmount>
      </NetGainOrLossInvestments>
      <TotalRevenue>
        <TotalRevenueColumn>85077020</TotalRevenueColumn>
        <RelatedOrExemptFunctionIncome>84115765</RelatedOrExemptFunctionIncome>
        <UnrelatedBusinessRevenue>100000</UnrelatedBusinessRevenue>
        <ExclusionAmount>861255</ExclusionAmount>
      </TotalRevenue>
      <GrantsToDomesticOrgs>
        <Total>177500</Total>
        <ProgramServices>177500</ProgramServices>
      </GrantsToDomesticOrgs>
      <BenefitsToMembers>
        <Total>71346081</Total>
        <ProgramServices>71346081</ProgramServices>
      </BenefitsToMembers>
      <CompCurrentOfficersDirectors>
        <Total>101250</Total>
        <ManagementAndGeneral>101250</ManagementAndGeneral>
      </CompCurrentOfficersDirectors>
      <OtherSalariesAndWages>
        <Total>439430</Total>
        <ManagementAndGeneral>439430</ManagementAndGeneral>
      </OtherSalariesAndWages>
      <PensionPlanContributions>
        <Total>9430</Total>
        <ManagementAndGeneral>9430</ManagementAndGeneral>
      </PensionPlanContributions>
      <OtherEmployeeBenefits>
        <Total>111620</Total>
        <ManagementAndGeneral>111620</ManagementAndGeneral>
      </OtherEmployeeBenefits>
      <PayrollTaxes>
        <Total>32356</Total>
        <ManagementAndGeneral>32356</ManagementAndGeneral>
      </PayrollTaxes>
      <FeesForServicesLegal>
        <Total>34519</Total>
        <ManagementAndGeneral>34519</ManagementAndGeneral>
      </FeesForServicesLegal>
      <FeesForServicesAccounting>
        <Total>21139</Total>
        <ManagementAndGeneral>21139</ManagementAndGeneral>
      </FeesForServicesAccounting>
      <FeesForServicesInvstMgmntFees>
        <Total>103726</Total>
        <ManagementAndGeneral>103726</ManagementAndGeneral>
      </FeesForServicesInvstMgmntFees>
      <FeesForServicesOther>
        <Total>18920</Total>
        <ManagementAndGeneral>18920</ManagementAndGeneral>
      </FeesForServicesOther>
      <Advertising>
        <Total>489939</Total>
        <ManagementAndGeneral>489939</ManagementAndGeneral>
      </Advertising>
      <OfficeExpenses>
        <Total>76411</Total>
        <ManagementAndGeneral>76411</ManagementAndGeneral>
      </OfficeExpenses>
      <Occupancy>
        <Total>58972</Total>
        <ManagementAndGeneral>58972</ManagementAndGeneral>
      </Occupancy>
      <Travel>
        <Total>36340</Total>
        <ManagementAndGeneral>36340</ManagementAndGeneral>
      </Travel>
      <ConferencesMeetings>
        <Total>62591</Total>
        <ManagementAndGeneral>62591</ManagementAndGeneral>
      </ConferencesMeetings>
      <Interest>
        <Total>101</Total>
        <ManagementAndGeneral>101</ManagementAndGeneral>
      </Interest>
      <DepreciationDepletion>
        <Total>14050</Total>
        <ManagementAndGeneral>14050</ManagementAndGeneral>
      </DepreciationDepletion>
      <Insurance>
        <Total>21442</Total>
        <ManagementAndGeneral>21442</ManagementAndGeneral>
      </Insurance>
      <OtherExpenses>
        <Description>Administration - Delta</Description>
        <Total>6442613</Total>
        <ProgramServices>3111782</ProgramServices>
        <ManagementAndGeneral>3330831</ManagementAndGeneral>
      </OtherExpenses>
      <OtherExpenses>
        <Description>Brokers' commissions</Description>
        <Total>2850159</Total>
        <ManagementAndGeneral>2850159</ManagementAndGeneral>
      </OtherExpenses>
      <OtherExpenses>
        <Description>Dues &amp; subscriptions</Description>
        <Total>133280</Total>
        <ManagementAndGeneral>133280</ManagementAndGeneral>
      </OtherExpenses>
      <OtherExpenses>
        <Description>Professional relations</Description>
        <Total>14600</Total>
        <ManagementAndGeneral>14600</ManagementAndGeneral>
      </OtherExpenses>
      <AllOtherExpenses>
        <Total>61389</Total>
        <ManagementAndGeneral>61389</ManagementAndGeneral>
      </AllOtherExpenses>
      <TotalFunctionalExpenses>
        <Total>82657858</Total>
        <ProgramServices>74635363</ProgramServices>
        <ManagementAndGeneral>8022495</ManagementAndGeneral>
        <Fundraising>0</Fundraising>
      </TotalFunctionalExpenses>
      <CashNonInterestBearing>
        <BOY>2928762</BOY>
        <EOY>3241789</EOY>
      </CashNonInterestBearing>
      <SavingsAndTempCashInvestments>
        <BOY>3278960</BOY>
        <EOY>2887740</EOY>
      </SavingsAndTempCashInvestments>
      <AccountsReceivable>
        <BOY>3125601</BOY>
        <EOY>3595237</EOY>
      </AccountsReceivable>
      <PrepaidExpensesDeferredCharges>
        <BOY>6754</BOY>
        <EOY>6183</EOY>
      </PrepaidExpensesDeferredCharges>
      <LandBuildingsEquipmentBasis>199960</LandBuildingsEquipmentBasis>
      <LandBldgEquipmentAccumDeprec>167622</LandBldgEquipmentAccumDeprec>
      <LandBuildingsEquipmentBasisNet>
        <BOY>26794</BOY>
        <EOY>32338</EOY>
      </LandBuildingsEquipmentBasisNet>
      <InvestmentsPubTradedSecurities>
        <BOY>26802005</BOY>
        <EOY>27678815</EOY>
      </InvestmentsPubTradedSecurities>
      <InvestmentsProgramRelated>
        <BOY>1352030</BOY>
        <EOY>1392668</EOY>
      </InvestmentsProgramRelated>
      <OtherAssetsTotal>
        <BOY>5740</BOY>
        <EOY>2917</EOY>
      </OtherAssetsTotal>
      <TotalAssets>
        <BOY>37526646</BOY>
        <EOY>38837687</EOY>
      </TotalAssets>
      <AccountsPayableAccruedExpenses>
        <BOY>2663876</BOY>
        <EOY>2653631</EOY>
      </AccountsPayableAccruedExpenses>
      <GrantsPayable>
        <BOY>1399100</BOY>
        <EOY>824400</EOY>
      </GrantsPayable>
      <OtherLiabilities>
        <BOY>2629042</BOY>
        <EOY>2339801</EOY>
      </OtherLiabilities>
      <TotalLiabilities>
        <BOY>6692018</BOY>
        <EOY>5817832</EOY>
      </TotalLiabilities>
      <FollowSFAS117>X</FollowSFAS117>
      <UnrestrictedNetAssets>
        <BOY>30834628</BOY>
        <EOY>33019855</EOY>
      </UnrestrictedNetAssets>
      <TotalNetAssetsFundBalances>
        <BOY>30834628</BOY>
        <EOY>33019855</EOY>
      </TotalNetAssetsFundBalances>
      <TotalLiabNetAssetsFundBalances>
        <BOY>37526646</BOY>
        <EOY>38837687</EOY>
      </TotalLiabNetAssetsFundBalances>
      <InfoInScheduleOPartXI>X</InfoInScheduleOPartXI>
      <ReconcilationRevenueExpenses>2419162</ReconcilationRevenueExpenses>
      <ReconcilationOtherChanges>-233935</ReconcilationOtherChanges>
      <InfoInScheduleOPartXII>X</InfoInScheduleOPartXII>
      <MethodOfAccountingAccrual>X</MethodOfAccountingAccrual>
      <AccountantCompileOrReview>0</AccountantCompileOrReview>
      <FSAudited>1</FSAudited>
      <AuditCommittee>1</AuditCommittee>
      <FinancialStatementSeparate>X</FinancialStatementSeparate>
      <FederalGrantAuditRequired>0</FederalGrantAuditRequired>
    </IRS990>
    <IRS990ScheduleD documentId="RetDoc1040000001">
      <LeaseholdImprovements>
        <OtherCostOrOtherBasis>14667</OtherCostOrOtherBasis>
        <Depreciation>12813</Depreciation>
        <BookValue>1854</BookValue>
      </LeaseholdImprovements>
      <Equipment>
        <OtherCostOrOtherBasis>122361</OtherCostOrOtherBasis>
        <Depreciation>119464</Depreciation>
        <BookValue>2897</BookValue>
      </Equipment>
      <OtherLandBuildings>
        <OtherCostOrOtherBasis>62932</OtherCostOrOtherBasis>
        <Depreciation>35345</Depreciation>
        <BookValue>27587</BookValue>
      </OtherLandBuildings>
      <TotalOfBookValueLandBuildings>32338</TotalOfBookValueLandBuildings>
      <OtherLiabilities>
        <Description>Accrued refunds</Description>
        <Amount>231927</Amount>
      </OtherLiabilities>
      <OtherLiabilities>
        <Description>Unearned revenue</Description>
        <Amount>564474</Amount>
      </OtherLiabilities>
      <OtherLiabilities>
        <Description>Advances - admin service contracts</Description>
        <Amount>1543400</Amount>
      </OtherLiabilities>
      <TotalOfAmounts>2339801</TotalOfAmounts>
      <TotalRevenue>85077020</TotalRevenue>
      <TotalExpenses>82657858</TotalExpenses>
      <ExcessOrDeficitForYear>2419162</ExcessOrDeficitForYear>
      <NetUnrealizedGLOnInvestments>-233935</NetUnrealizedGLOnInvestments>
      <TotalAdjustments>-233935</TotalAdjustments>
      <ExcessOrDeficitPerFS>2185227</ExcessOrDeficitPerFS>
      <TotRevenueEtcAuditedFinclStmt>55829877</TotRevenueEtcAuditedFinclStmt>
      <NetUnrealizedGainsInvestments>-233935</NetUnrealizedGainsInvestments>
      <RevenueNotRptdF990>-233935</RevenueNotRptdF990>
      <RevenueSubtotal>56063812</RevenueSubtotal>
      <InvestmentExpensesNotIncluded>103726</InvestmentExpensesNotIncluded>
      <OtherRevenuesNotIncluded>28909482</OtherRevenuesNotIncluded>
      <RevenueNotRptdOnFinStmt>29013208</RevenueNotRptdOnFinStmt>
      <TotalRevenuePerForm990>85077020</TotalRevenuePerForm990>
      <TotExpensesEtcAuditedFinclStmt>53644650</TotExpensesEtcAuditedFinclStmt>
      <ExpensesNotRptdF990>0</ExpensesNotRptdF990>
      <ExpensesSubtotal>53644650</ExpensesSubtotal>
      <InvestmentExpensesNotIncluded2>103726</InvestmentExpensesNotIncluded2>
      <OtherExpensesNotIncluded>28909482</OtherExpensesNotIncluded>
      <ExpensesNotRptdOnFinStmt>29013208</ExpensesNotRptdOnFinStmt>
      <TotalExpensesPerForm990>82657858</TotalExpensesPerForm990>
      <Form990ScheduleDPartXIV>
        <Identifier>Description of Uncertain Tax Positions Under FIN 48:</Identifier>
        <ReturnReference>Part X:</ReturnReference>
        <Explanation>The 2011 audited financial statements contain the following verbatim paragraphs pertaining to tax positions under FIN 48: The Corporation is exempt from federal and state income taxes under the provisions of Section 501(c)(4) of the Internal Revenue Code. Tax-exempt organizations could be required to record an obligation for income taxes as the result of a tax position historically taken on various tax exposure items including unrelated business income or tax status. In accordance with accounting principles generally accepted in the United States of America, assets and liabilities are established for uncertain tax positions taken or positions expected to be taken in income tax returns when such positions are judged to not meet the "more-likely-than-not" threshold, based upon the technical merits of the position. Management has evaluated the Corporation's tax positions taken on its filed tax returns and concluded that the Corporation has maintained its tax-exempt status, does not have any significant unrelated business income and has taken no uncertain tax positions that require adjustment to or disclosure in the accompanying financial statements. Tax years after December 31, 2007 are open for Internal Revenue Service or state examination.</Explanation>
      </Form990ScheduleDPartXIV>
      <Form990ScheduleDPartXIV>
        <Identifier>Part XII, Line 4b - Other Adjustments:</Identifier>
        <Explanation>Dental claims paid under admin service contracts 28,909,482.</Explanation>
      </Form990ScheduleDPartXIV>
      <Form990ScheduleDPartXIV>
        <Identifier>Part XIII, Line 4b - Other Adjustments:</Identifier>
        <Explanation>Dental claims paid under admin service contracts 28,909,482.</Explanation>
      </Form990ScheduleDPartXIV>
    </IRS990ScheduleD>
    <IRS990ScheduleI documentId="RetDoc1041900001">
      <RecordsMaintained>1</RecordsMaintained>
      <RecipientTable>
        <RecipientNameBusiness>
          <BusinessNameLine1>University of New England</BusinessNameLine1>
        </RecipientNameBusiness>
        <AddressUS>
          <AddressLine1>11 Hills Beach Road</AddressLine1>
          <City>Biddeford</City>
          <State>ME</State>
          <ZIPCode>04005</ZIPCode>
        </AddressUS>
        <EINOfRecipient>010211810</EINOfRecipient>
        <IRCSection>501(c)(3)</IRCSection>
        <AmountOfCashGrant>6000</AmountOfCashGrant>
        <PurposeOfGrant>Building a new dental school</PurposeOfGrant>
      </RecipientTable>
      <RecipientTable>
        <RecipientNameBusiness>
          <BusinessNameLine1>Northeast Delta Dental Foundation</BusinessNameLine1>
        </RecipientNameBusiness>
        <AddressUS>
          <AddressLine1>One Delta Drive PO Box 2002</AddressLine1>
          <City>Concord</City>
          <State>NH</State>
          <ZIPCode>03302</ZIPCode>
        </AddressUS>
        <EINOfRecipient>020489150</EINOfRecipient>
        <IRCSection>501(c)(3)</IRCSection>
        <AmountOfCashGrant>171500</AmountOfCashGrant>
        <PurposeOfGrant>General support to promote oral health</PurposeOfGrant>
      </RecipientTable>
      <TotalNbrOf501C3AndGovtGrants>2</TotalNbrOf501C3AndGovtGrants>
      <TotalNbrOfOtherOrganizations>0</TotalNbrOfOtherOrganizations>
      <Form990ScheduleIPartIV>
        <Explanation>Maine Dental Service Corporation (MDSC) makes elective annual charitable contributions to the Northeast Dental Foundation equal to 0.05% of the budgeted gross billings, plus 5% of the actual increase in unrestricted net assets from operations each year. MDSC's total contributions to the Foundation in 2011 totaled $171,500. During 2008, MDSC pledged $2,000,000 to the University of New England to build a new dental school. Per the audited financial statements, the $6,000 related to the change in the discounted value of the pledge has been recorded as an expense for the year ended December 31, 2011.</Explanation>
      </Form990ScheduleIPartIV>
    </IRS990ScheduleI>
    <IRS990ScheduleJ documentId="RetDoc1042400001">
      <CompensationCommittee>X</CompensationCommittee>
      <IndependentConsultant>X</IndependentConsultant>
      <Form990OfOtherOrganizations>X</Form990OfOtherOrganizations>
      <CompensationSurvey>X</CompensationSurvey>
      <BoardOrCommitteeApproval>X</BoardOrCommitteeApproval>
      <SeverancePayment>0</SeverancePayment>
      <SupplementalNonqualRetirePlan>1</SupplementalNonqualRetirePlan>
      <EquityBasedCompArrangement>0</EquityBasedCompArrangement>
      <CompBasedOnRevenueOfFilingOrg>0</CompBasedOnRevenueOfFilingOrg>
      <CompBasedOnRevenueRelatedOrgs>0</CompBasedOnRevenueRelatedOrgs>
      <CompBasedNetEarningsFilingOrg>0</CompBasedNetEarningsFilingOrg>
      <CompBasedNetEarningsRelateOrgs>0</CompBasedNetEarningsRelateOrgs>
      <AnyNonFixedPayments>0</AnyNonFixedPayments>
      <InitialContractException>0</InitialContractException>
      <Form990ScheduleJPartII>
        <NamePerson>THOMAS RAFFIO - DDPNH</NamePerson>
        <BaseCompensationFilingOrg>0</BaseCompensationFilingOrg>
        <CompBasedOnRelatedOrgs>522200</CompBasedOnRelatedOrgs>
        <BonusFilingOrg>0</BonusFilingOrg>
        <BonusRelatedOrgs>131700</BonusRelatedOrgs>
        <OtherCompensationFilingOrg>0</OtherCompensationFilingOrg>
        <OtherCompensationRelatedOrgs>54615</OtherCompensationRelatedOrgs>
        <DeferredCompFilingOrg>0</DeferredCompFilingOrg>
        <DeferredCompRelatedOrgs>111750</DeferredCompRelatedOrgs>
        <NontaxableBenefitsFilingOrg>0</NontaxableBenefitsFilingOrg>
        <NontaxableBenefitsRelatedOrgs>24152</NontaxableBenefitsRelatedOrgs>
        <TotalCompensationFilingOrg>0</TotalCompensationFilingOrg>
        <TotalCompensationRelatedOrgs>844417</TotalCompensationRelatedOrgs>
        <CompReportPrior990FilingOrg>0</CompReportPrior990FilingOrg>
        <CompReportPrior990RelatedOrgs>0</CompReportPrior990RelatedOrgs>
      </Form990ScheduleJPartII>
      <Form990ScheduleJPartII>
        <NamePerson>HELEN T BIGLIN - DDPNH</NamePerson>
        <BaseCompensationFilingOrg>0</BaseCompensationFilingOrg>
        <CompBasedOnRelatedOrgs>114876</CompBasedOnRelatedOrgs>
        <BonusFilingOrg>0</BonusFilingOrg>
        <BonusRelatedOrgs>6054</BonusRelatedOrgs>
        <OtherCompensationFilingOrg>0</OtherCompensationFilingOrg>
        <OtherCompensationRelatedOrgs>31448</OtherCompensationRelatedOrgs>
        <DeferredCompFilingOrg>0</DeferredCompFilingOrg>
        <DeferredCompRelatedOrgs>5468</DeferredCompRelatedOrgs>
        <NontaxableBenefitsFilingOrg>0</NontaxableBenefitsFilingOrg>
        <NontaxableBenefitsRelatedOrgs>17573</NontaxableBenefitsRelatedOrgs>
        <TotalCompensationFilingOrg>0</TotalCompensationFilingOrg>
        <TotalCompensationRelatedOrgs>175419</TotalCompensationRelatedOrgs>
        <CompReportPrior990FilingOrg>0</CompReportPrior990FilingOrg>
        <CompReportPrior990RelatedOrgs>0</CompReportPrior990RelatedOrgs>
      </Form990ScheduleJPartII>
      <Form990ScheduleJPartIII>
        <Identifier>Supplemental Information</Identifier>
        <ReturnReference>Part III</ReturnReference>
        <Explanation>Thomas Raffio, CEO, Helen Biglin and Senior Vice President (part year) received all of their compensation from Delta Dental Plan of New Hampshire, which is an unrelated organization per Schedule R definitions.</Explanation>
      </Form990ScheduleJPartIII>
    </IRS990ScheduleJ>
    <IRS990ScheduleL documentId="RetDoc1042800001">
      <Form990ScheduleLPartIV>
        <NameOfInterestedPerson>
          <NamePerson>David L Bagdasarian DDS</NamePerson>
        </NameOfInterestedPerson>
        <Relationship>Director</Relationship>
        <AmountOfTransaction>560286</AmountOfTransaction>
        <DescriptionOfTransaction>The Directors listed here have ownership interests in dental practices that receive insurance reimbursements from Delta Dental in the ordinary course of their business. All transactions are at arm's length and for fair value.</DescriptionOfTransaction>
        <SharingOfRevenues>0</SharingOfRevenues>
      </Form990ScheduleLPartIV>
      <Form990ScheduleLPartIV>
        <NameOfInterestedPerson>
          <NamePerson>Stephen G Morse DDS</NamePerson>
        </NameOfInterestedPerson>
        <Relationship>Director</Relationship>
        <AmountOfTransaction>255002</AmountOfTransaction>
        <SharingOfRevenues>0</SharingOfRevenues>
      </Form990ScheduleLPartIV>
      <Form990ScheduleLPartIV>
        <NameOfInterestedPerson>
          <NamePerson>Barry C Saltz DDS</NamePerson>
        </NameOfInterestedPerson>
        <Relationship>Director</Relationship>
        <AmountOfTransaction>266156</AmountOfTransaction>
        <SharingOfRevenues>0</SharingOfRevenues>
      </Form990ScheduleLPartIV>
      <Form990ScheduleLPartIV>
        <NameOfInterestedPerson>
          <NamePerson>Charles E Brown DDS</NamePerson>
        </NameOfInterestedPerson>
        <Relationship>Director</Relationship>
        <AmountOfTransaction>113400</AmountOfTransaction>
        <SharingOfRevenues>0</SharingOfRevenues>
      </Form990ScheduleLPartIV>
    </IRS990ScheduleL>
    <IRS990ScheduleO documentId="RetDoc1044400001">
      <GeneralExplanation>
        <ReturnReference>Form 990, Part VI, Section B, line 11</ReturnReference>
        <Explanation>The Form 990 is reviewed in detail by key finance employees of Northeast Delta Dental. A final draft is presented to the Board before the Form is filed.</Explanation>
      </GeneralExplanation>
      <GeneralExplanation>
        <ReturnReference>Form 990, Part VI, Section B, line 12c</ReturnReference>
        <Explanation>A copy of the conflict of interest policy is distributed annually to all officers, directors, and the management team. All are required to report any conflicts and sign, date, and return the policy, whether or not a conflict exists, to confirm compliance. General Counsel reviews the returned policies and reports the results to the entire Board of Directors. Board members are asked to provide updates of any changes that may occur between their annual conflict of interest filings.</Explanation>
      </GeneralExplanation>
      <GeneralExplanation>
        <ReturnReference>Form 990, Part VI, Section C, line 19</ReturnReference>
        <Explanation>Upon request, Maine Dental Services Corporation makes its governing documents, conflict of interest policy, or financial statements available to the public.</Explanation>
      </GeneralExplanation>
      <GeneralExplanation>
        <Identifier>Changes in Net Assets or Fund Balances:</Identifier>
        <ReturnReference>Form 990, Part XI, line 5:</ReturnReference>
        <Explanation>Net unrealized losses on investments: -233,935.</Explanation>
      </GeneralExplanation>
      <GeneralExplanation>
        <ReturnReference>Form 990, Part XII, Line 2c:</ReturnReference>
        <Explanation>The Finance/Audit Committee oversees the audit process for Maine Dental Service Corporation. The audit process for the financial statements did not change from the prior year. Independent accountants performed the audit in both 2010 and 2011.</Explanation>
      </GeneralExplanation>
    </IRS990ScheduleO>
  </ReturnData>
</Return>