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                       SECURITIES AND EXCHANGE COMMISSION

                             Washington, D.C. 20549
                                   -----------
                                   SCHEDULE TO
                                 AMENDMENT NO. 7

            TENDER OFFER STATEMENT UNDER SECTION 14(d)(1) or 13(e)(1)
                     OF THE SECURITIES EXCHANGE ACT OF 1934

                         SYBRON DENTAL SPECIALTIES, INC.
                            (Name of Subject Company)

                               DANAHER CORPORATION
                             SMILE ACQUISITION CORP.
                       (Name of Filing Persons--Offerors)

                     COMMON STOCK, PAR VALUE $0.01 PER SHARE
           (INCLUDING THE ASSOCIATED PREFERRED STOCK PURCHASE RIGHTS)
                         (Title of Class of Securities)

                                    871142105
                      (CUSIP Number of Class of Securities)

                                 Daniel L. Comas
              Executive Vice President and Chief Financial Officer
                               Danaher Corporation
                          2099 Pennsylvania Avenue, NW
                                   12th Floor
                             Washington, D.C. 20006
                                 (202) 828-0850
            (Name, Address and Telephone Number of Person Authorized
       to Receive Notices and Communications on Behalf of Filing Persons)

                                   -Copies to-
                             Trevor S. Norwitz, Esq.
                         Wachtell, Lipton, Rosen & Katz
                               51 West 52nd Street
                               New York, NY 10019
                                 (212) 403-1000
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                            CALCULATION OF FILING FEE


       Transaction Valuation                Amount of Filing Fee
------------------------------------- ----------------------------------
           2,046,908,434*                         $219,019*
------------------------------------- ----------------------------------
------------------------------------- ----------------------------------

*    Estimated for purposes of calculating the amount of the filing fee only.
     The calculation of the filing fee is described on the cover page to the
     Schedule TO filed on April 18, 2006.
[X]  Check the box if any part of the fee is offset as provided by Rule
     0-11(a)(2) and identify the filing with which the offsetting fee was
     previously paid. Identify the previous filing by registration statement
     number, or the Form or Schedule and the date of its filing.
       Amount Previously Paid:  $219,019       Filing Party: Danaher Corporation
       Form or Registration No.:  Schedule TO  Date Filed: April 18, 2006
[_]  Check the box if the filing relates solely to preliminary communications
     made before the commencement of a tender offer.
Check the appropriate boxes below to designate any transactions to which the
statement relates:
[X]  third-party tender offer subject to Rule 14d-1.
[_]  issuer tender offer subject to Rule 13e-4.
[_]  going-private transaction subject to Rule 13e-3.
[_]  amendment to Schedule 13D under Rule 13d-2.

Check the following box if the filing is a final amendment reporting the results
of the tender offer: [_]
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        This Amendment No. 6 amends and supplements the Tender Offer
Statement on Schedule TO, as amended, (the "SCHEDULE TO"), originally filed with
the Securities and Exchange Commission on April 18, 2006 and as amended and
supplemented by Amendment No. 1 on April 21, 2006, Amendment No. 2 on April 26,
2006, Amendment No. 3 on May 3, 2006, Amendment No. 4 on May 8, 2006, Amendment
No. 5 on May 11, 2006 and Amendment No. 6 on May 16, 2006, by Danaher
Corporation ("DANAHER"), a Delaware corporation, and Smile Acquisition Corp.
("PURCHASER"), a Delaware corporation and an indirect wholly owned subsidiary of
Danaher. The Schedule TO relates to the offer by Purchaser to purchase any and
all of the outstanding shares of common stock, par value $0.01 per share (the
"SHARES"), of Sybron Dental Specialties, Inc., a Delaware corporation
("SYBRON"), for $47.00 per Share, net to the seller in cash, upon the terms and
subject to the conditions set forth in the Offer to Purchase, dated April 18,
2006 (the "OFFER TO PURCHASE"), and in the related Letter of Transmittal. Copies
of the Offer to Purchase and the related Letter of Transmittal are filed with
the Schedule TO as exhibits (a)(1)(A) and (a)(1)(B), respectively. Capitalized
terms used and not defined herein shall have the meanings assigned such terms in
the Offer to Purchase and Schedule TO.

        The Schedule TO, which incorporates by reference the
information contained in the Offer to Purchase, is hereby amended and
supplemented as follows:

        On May 11, 2006, Danaher filed a Form 8-K with the SEC that included
the operative agreements with respect to Danaher's issuance of commercial
paper and execution of a 364 Day Revolving Credit Facility, including: (1) the
Commercial Paper Dealer Agreement with Goldman, Sachs & Co.; (2) the Commercial
Paper Issuing and Paying Agent Agreement with Deutsche Bank Trust Company
Americas; (3) the Dealer Agreement with Lehman Brothers International (Europe);
(4) the Issuing and Paying Agency Agreement with Deutsche Bank AG, London
Branch; and (5) the Credit Agreement with UBS Securities LLC. On the same day,
Danaher filed Amendment No. 5 to the Schedule TO, which incorporated by
reference these agreements to the Schedule TO.

        Consistent with the prior disclosure in Danaher's Schedule TO,
Item 1.01 of the Form 8-K provided an additional summary of the Global
Commercial Paper Program and the $700 Million Credit Facility referenced above,
and that summary is incorporated herein by reference.

ITEM 12.  EXHIBITS

        Item 12 of the Schedule TO is hereby amended by adding thereto
        the following:

        (b)(8)    Summary of the Global Commercial Paper Program and the $700
                  Million Credit Facility (filed as Item 1.01 of the Form 8-K
                  filed by Danaher with the SEC on May 11, 2006 and incorporated
                  herein by reference).








                                    SIGNATURE

        After due inquiry and to the best of my knowledge and belief, I certify
that the information set forth in this statement is true, complete and correct.

Dated:  May 17, 2006

                                     DANAHER CORPORATION


                                     By:   /s/ Daniel L. Comas
                                           -------------------------------------
                                           Name:   Daniel L. Comas
                                           Title:  Executive Vice President
                                                   and Chief Financial Officer


                                     SMILE ACQUISITION CORP.


                                     By:   /s/ Daniel L. Comas
                                           -------------------------------------
                                           Name:   Daniel L. Comas
                                           Title:  President









                                  EXHIBIT INDEX



*(a)(1)(A)        Offer to Purchase, dated April 18, 2006.

*(a)(1)(B)        Form of Letter of Transmittal.

*(a)(1)(C)        Form of Notice of Guaranteed Delivery.

*(a)(1)(D)        Form of Letter to Brokers, Dealers, Commercial Banks, Trust
                  Companies and Other Nominees.

*(a)(1)(E)        Form of Letter to Clients for use by Brokers, Dealers,
                  Commercial Banks, Trust Companies and Other Nominees.

*(a)(1)(F)        Guidelines for Certification of Taxpayer Identification Number
                  on Substitute Form W-9.

(a)(2)            Not applicable.

(a)(3)            Not applicable.

(a)(4)            Not applicable.

*(a)(5)(A)        Text of press release issued by Danaher dated April 12, 2006.

*(a)(5)(B)        Form of summary advertisement dated April 18, 2006.

*(a)(5)(C)        Excerpt from transcript of Danaher's first quarter 2006
                  earnings call, dated April 20, 2006.

*(a)(5)(D)        Text of press release issued by Danaher dated May 3, 2006.

*(a)(5)(E)        Text of press release issued by Danaher and Sybron dated May
                  5, 2006.

*(a)(5)(F)        Text of press release issued by Danaher dated May 11, 2006.

*(a)(5)(G)        Text of press release issued by Danaher and Sybron dated May
                  16, 2006.

*(a)(6)(A)        Complaint titled Dolphin Limited Partnership I, L.P. et al. v.
                  Sybron Dental Specialties, Inc. et al., filed on April 24,
                  2006, in the Superior Court of the State of California, County
                  of Orange, Case No. 06CC00082.

*(a)(6)(B)        Memorandum of Understanding, dated May 5, 2006.

*(b)(1)           Credit Agreement, dated as of April 25, 2006, among Danaher
                  Corporation and Bank of America, N.A., et al.

*(b)(2)           Commitment letter with respect to a US$700,000,000 364 Day
                  Revolving Credit Facility  for Danaher Corporation, dated
                  April 11, 2006, by UBS Loan Finance LLC.

*(b)(3)           Commercial Paper Dealer Agreement between Danaher Corporation,
                  as Issuer, and Goldman, Sachs & Co., as Dealer, dated May 5,
                  2006 (filed as Exhibit 10.1 to the Form 8-K filed by Danaher
                  with the SEC on May 11, 2006 and incorporated herein by
                  reference).






*(b)(4)           Commercial Paper Issuing and Paying Agent Agreement by and
                  between Danaher Corporation and Deutsche Bank Trust Company
                  Americas, dated May 5, 2006 (filed as Exhibit 10.2 to the Form
                  8-K filed by Danaher with the SEC on May 11, 2006 and
                  incorporated herein by reference).

*(b)(5)           Dealer Agreement between Danaher European Finance S.A., as
                  Issuer, Danaher Corporation, as Guarantor, and Lehman Brothers
                  International (Europe), as Dealer and Arranger, dated May 8,
                  2006 (filed as Exhibit 10.3 to the Form 8-K filed by Danaher
                  with the SEC on May 11, 2006 and incorporated herein by
                  reference).

*(b)(6)           Issuing and Paying Agency Agreement among Danaher European
                  Finance S.A., Danaher Corporation and Deutsche Bank AG, London
                  Branch dated May 8, 2006 (filed as Exhibit 10.4 to the Form
                  8-K filed by Danaher with the SEC on May 11, 2006 and
                  incorporated herein by reference).

*(b)(7)           Credit Agreement, dated as of May 9, 2006, among the lenders
                  referred to therein, UBS Securities LLC, as Syndication Agent,
                  Documentation Agent, Lead Arranger and Book Manager, and UBS
                  AG, Stamford Branch, as Administrative Agent (filed as Exhibit
                  10.5 to the Form 8-K filed by Danaher with the SEC on May 11,
                  2006 and incorporated herein by reference).

(b)(8)            Summary of the Global Commercial Paper Program and the $700
                  Million Credit Facility (filed as Item 1.01 of the Form 8-K
                  filed by Danaher with the SEC on May 11, 2006 and incorporated
                  herein by reference).

*(d)(1)           Agreement and Plan of Merger, dated as of April 12, 2006,
                  between Danaher, the Purchaser and Sybron.

*(d)(2)           Confidentiality Agreement, dated as of March 13, 2006, between
                  Danaher and Sybron.

(g)               None.

(h)               Not applicable.

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* Previously filed.