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Proc-Type: 2001,MIC-CLEAR
Originator-Name: webmaster@www.sec.gov
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MIC-Info: RSA-MD5,RSA,
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<SEC-DOCUMENT>0001358010-06-000021.txt : 20061016
<SEC-HEADER>0001358010-06-000021.hdr.sgml : 20061016
<ACCEPTANCE-DATETIME>20061016191848
ACCESSION NUMBER:		0001358010-06-000021
CONFORMED SUBMISSION TYPE:	4
PUBLIC DOCUMENT COUNT:		1
CONFORMED PERIOD OF REPORT:	20061013
FILED AS OF DATE:		20061016
DATE AS OF CHANGE:		20061016

ISSUER:		

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			BIOLASE TECHNOLOGY INC
		CENTRAL INDEX KEY:			0000811240
		STANDARD INDUSTRIAL CLASSIFICATION:	DENTAL EQUIPMENT & SUPPLIES [3843]
		IRS NUMBER:				870442441
		STATE OF INCORPORATION:			DE
		FISCAL YEAR END:			1231

	BUSINESS ADDRESS:	
		STREET 1:		981 CALLE AMANECER
		CITY:			SAN CLEMENTE
		STATE:			CA
		ZIP:			92673
		BUSINESS PHONE:		7143611200

	MAIL ADDRESS:	
		STREET 1:		981 CALLE AMANECER
		CITY:			SAN CLEMENTE
		STATE:			CA
		ZIP:			92673

	FORMER COMPANY:	
		FORMER CONFORMED NAME:	LASER MEDICAL TECHNOLOGY INC
		DATE OF NAME CHANGE:	19941117

	FORMER COMPANY:	
		FORMER CONFORMED NAME:	LASER ENDO TECHNIC CORP
		DATE OF NAME CHANGE:	19920708

	FORMER COMPANY:	
		FORMER CONFORMED NAME:	PAMPLONA CAPITAL CORP
		DATE OF NAME CHANGE:	19911104

REPORTING-OWNER:	

	OWNER DATA:	
		COMPANY CONFORMED NAME:			dArbeloff George V
		CENTRAL INDEX KEY:			0001295298

	FILING VALUES:
		FORM TYPE:		4
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	000-19627
		FILM NUMBER:		061147328

	BUSINESS ADDRESS:	
		BUSINESS PHONE:		949-361-1200

	MAIL ADDRESS:	
		STREET 1:		C/O BIOLASE TECHNOLOGY, INC.
		STREET 2:		4 CROMWELL
		CITY:			IRVINE
		STATE:			CA
		ZIP:			92618
</SEC-HEADER>
<DOCUMENT>
<TYPE>4
<SEQUENCE>1
<FILENAME>primary_doc.xml
<DESCRIPTION>PRIMARY DOCUMENT
<TEXT>
<XML>
<?xml version="1.0"?>
<ownershipDocument>

    <schemaVersion>X0202</schemaVersion>

    <documentType>4</documentType>

    <periodOfReport>2006-10-13</periodOfReport>

    <notSubjectToSection16>0</notSubjectToSection16>

    <issuer>
        <issuerCik>0000811240</issuerCik>
        <issuerName>BIOLASE TECHNOLOGY INC</issuerName>
        <issuerTradingSymbol>BLTI</issuerTradingSymbol>
    </issuer>

    <reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0001295298</rptOwnerCik>
            <rptOwnerName>dArbeloff George V</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>C/O BIOLASE TECHNOLOGY, INC.</rptOwnerStreet1>
            <rptOwnerStreet2>4 CROMWELL</rptOwnerStreet2>
            <rptOwnerCity>IRVINE</rptOwnerCity>
            <rptOwnerState>CA</rptOwnerState>
            <rptOwnerZipCode>92618</rptOwnerZipCode>
            <rptOwnerStateDescription></rptOwnerStateDescription>
        </reportingOwnerAddress>
        <reportingOwnerRelationship>
            <isDirector>1</isDirector>
            <isOfficer>0</isOfficer>
            <isTenPercentOwner>0</isTenPercentOwner>
            <isOther>0</isOther>
        </reportingOwnerRelationship>
    </reportingOwner>

    <nonDerivativeTable>
        <nonDerivativeTransaction>
            <securityTitle>
                <value>Common Stock</value>
            </securityTitle>
            <transactionDate>
                <value>2006-10-13</value>
            </transactionDate>
            <transactionCoding>
                <transactionFormType>4</transactionFormType>
                <transactionCode>M</transactionCode>
                <equitySwapInvolved>0</equitySwapInvolved>
            </transactionCoding>
            <transactionTimeliness>
                <value></value>
            </transactionTimeliness>
            <transactionAmounts>
                <transactionShares>
                    <value>8335</value>
                </transactionShares>
                <transactionPricePerShare>
                    <value>3.5625</value>
                </transactionPricePerShare>
                <transactionAcquiredDisposedCode>
                    <value>D</value>
                </transactionAcquiredDisposedCode>
            </transactionAmounts>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>46517</value>
                </sharesOwnedFollowingTransaction>
            </postTransactionAmounts>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>D</value>
                </directOrIndirectOwnership>
            </ownershipNature>
        </nonDerivativeTransaction>
    </nonDerivativeTable>

    <derivativeTable>
        <derivativeTransaction>
            <securityTitle>
                <value>Stock Option (right to buy)</value>
            </securityTitle>
            <conversionOrExercisePrice>
                <value>3.5625</value>
            </conversionOrExercisePrice>
            <transactionDate>
                <value>2006-10-13</value>
            </transactionDate>
            <transactionCoding>
                <transactionFormType>4</transactionFormType>
                <transactionCode>M</transactionCode>
                <equitySwapInvolved>0</equitySwapInvolved>
            </transactionCoding>
            <transactionTimeliness>
                <value></value>
            </transactionTimeliness>
            <transactionAmounts>
                <transactionShares>
                    <value>8335</value>
                </transactionShares>
                <transactionPricePerShare>
                    <value>0</value>
                </transactionPricePerShare>
                <transactionAcquiredDisposedCode>
                    <value>D</value>
                </transactionAcquiredDisposedCode>
            </transactionAmounts>
            <exerciseDate>
                <value>1997-12-12</value>
            </exerciseDate>
            <expirationDate>
                <value>2006-12-12</value>
            </expirationDate>
            <underlyingSecurity>
                <underlyingSecurityTitle>
                    <value>Common Stock</value>
                </underlyingSecurityTitle>
                <underlyingSecurityShares>
                    <value>8335</value>
                </underlyingSecurityShares>
            </underlyingSecurity>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>0</value>
                </sharesOwnedFollowingTransaction>
            </postTransactionAmounts>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>D</value>
                </directOrIndirectOwnership>
            </ownershipNature>
        </derivativeTransaction>
    </derivativeTable>

    <ownerSignature>
        <signatureName>Richard L. Harrison, Attorney-in-Fact for George V. d'Arbeloff</signatureName>
        <signatureDate>2006-10-16</signatureDate>
    </ownerSignature>
</ownershipDocument>
</XML>
</TEXT>
</DOCUMENT>
</SEC-DOCUMENT>
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