-----BEGIN PRIVACY-ENHANCED MESSAGE-----
Proc-Type: 2001,MIC-CLEAR
Originator-Name: webmaster@www.sec.gov
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 TWSM7vrzLADbmYQaionwg5sDW3P6oaM5D3tdezXMm7z1T+B+twIDAQAB
MIC-Info: RSA-MD5,RSA,
 KVTQUANLDqJxBCuTM1pHEfY05Lx6GZwDi3/VxwjFl89qgcjIuxLwbe6fDeMohqRc
 R7j3+YULVtTNrFByGt5ZZQ==

<SEC-DOCUMENT>0001358010-06-000004.txt : 20060331
<SEC-HEADER>0001358010-06-000004.hdr.sgml : 20060331
<ACCEPTANCE-DATETIME>20060331174350
ACCESSION NUMBER:		0001358010-06-000004
CONFORMED SUBMISSION TYPE:	4
PUBLIC DOCUMENT COUNT:		1
CONFORMED PERIOD OF REPORT:	20060329
FILED AS OF DATE:		20060331
DATE AS OF CHANGE:		20060331

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:			LAIRD NEIL J
		CENTRAL INDEX KEY:			0001220021

	FILING VALUES:
		FORM TYPE:		4
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	000-19627
		FILM NUMBER:		06730415

	BUSINESS ADDRESS:	
		STREET 1:		2444 CHARLESTON ROAD
		CITY:			MOUNTAIN VIEW
		STATE:			CA
		ZIP:			94043
		BUSINESS PHONE:		6509349525
</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>2006-03-29</periodOfReport>

    <notSubjectToSection16>0</notSubjectToSection16>

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

    <reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0001220021</rptOwnerCik>
            <rptOwnerName>LAIRD NEIL J</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>C/O BIOLASE TECHNOLOGY, INC.</rptOwnerStreet1>
            <rptOwnerStreet2>981 CALLE AMANECER</rptOwnerStreet2>
            <rptOwnerCity>SAN CLEMENTE</rptOwnerCity>
            <rptOwnerState>CA</rptOwnerState>
            <rptOwnerZipCode>92673</rptOwnerZipCode>
            <rptOwnerStateDescription></rptOwnerStateDescription>
        </reportingOwnerAddress>
        <reportingOwnerRelationship>
            <isDirector>1</isDirector>
            <isOfficer>0</isOfficer>
            <isTenPercentOwner>0</isTenPercentOwner>
            <isOther>0</isOther>
        </reportingOwnerRelationship>
    </reportingOwner>

    <derivativeTable>
        <derivativeTransaction>
            <securityTitle>
                <value>Stock Option (right to buy)</value>
            </securityTitle>
            <conversionOrExercisePrice>
                <value>9.06</value>
            </conversionOrExercisePrice>
            <transactionDate>
                <value>2006-03-29</value>
            </transactionDate>
            <transactionCoding>
                <transactionFormType>4</transactionFormType>
                <transactionCode>A</transactionCode>
                <equitySwapInvolved>0</equitySwapInvolved>
            </transactionCoding>
            <transactionTimeliness>
                <value></value>
            </transactionTimeliness>
            <transactionAmounts>
                <transactionShares>
                    <value>22500</value>
                </transactionShares>
                <transactionPricePerShare>
                    <value>0</value>
                </transactionPricePerShare>
                <transactionAcquiredDisposedCode>
                    <value>A</value>
                </transactionAcquiredDisposedCode>
            </transactionAmounts>
            <exerciseDate>
                <footnoteId id="F1"/>
            </exerciseDate>
            <expirationDate>
                <value>2016-03-29</value>
            </expirationDate>
            <underlyingSecurity>
                <underlyingSecurityTitle>
                    <value>Common Stock</value>
                </underlyingSecurityTitle>
                <underlyingSecurityShares>
                    <value>22500</value>
                </underlyingSecurityShares>
            </underlyingSecurity>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>22500</value>
                </sharesOwnedFollowingTransaction>
            </postTransactionAmounts>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>D</value>
                </directOrIndirectOwnership>
            </ownershipNature>
        </derivativeTransaction>
    </derivativeTable>

    <footnotes>
        <footnote id="F1">Vests 2,500 shares per month commencing the month after March 29, 2006.</footnote>
    </footnotes>

    <ownerSignature>
        <signatureName>/s/ Richard L. Harrison, Attorney-in-Fact</signatureName>
        <signatureDate>2006-03-29</signatureDate>
    </ownerSignature>
</ownershipDocument>
</XML>
</TEXT>
</DOCUMENT>
</SEC-DOCUMENT>
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