UNITED STATES
                              WASHINGTON, DC 20549

                                    FORM 8-K

                             CURRENT REPORT PURSUANT
                          TO SECTION 13 OR 15(D) OF THE
                         SECURITIES EXCHANGE ACT OF 1934

       Date of report (Date of earliest event reported) February 28, 2006

                             ALIGN TECHNOLOGY, INC.
             (Exact Name of Registrant as Specified in Its Charter)

                 (State or Other Jurisdiction of Incorporation)

                 0-32259                               94-3267295
        ------------------------            ----------------------------------
        (Commission File Number)            (IRS Employer Identification No.)

     881 Martin Avenue, Santa Clara,
              California                                  95050
 ----------------------------------------              ----------
 (Address of Principal Executive Offices)              (Zip Code)

                                 (408) 470-1000
              (Registrant's Telephone Number, Including Area Code)

                                 Not applicable
          (Former Name or Former Address, if Changed Since Last Report)

     Check the appropriate box below if the Form 8-K filing is intended to
simultaneously satisfy the filing obligation of the registrant under any of the
following provisions (see General Instruction A.2. below):

[ ]  Written communications pursuant to Rule 425 under the Securities
     Act (17 CFR 230.425)

[ ]  Soliciting material pursuant to Rule 14a-12 under the Exchange
     Act (17 CFR 240.14a-12)

[ ]  Pre-commencement communications pursuant to Rule 14d-2(b) under the
     Exchange Act (17 CFR 240.14d-2(b))

[ ]  Pre-commencement communications pursuant to Rule 13e-4(c) under the
     Exchange Act (17 CFR 240.13e-4(c))



         Align Technology, Inc. ("Align") has recently been informed by the FDA
that its Invisalign(R) system, a proprietary method for treating the
misalignment of teeth using a series of clear, removable aligners has been
classified as a Class II medical device, correcting what the FDA described as a
prior classification error. The Invisalign system was previously regulated as a
Class I medical device and was exempted from requiring pre-market clearance by
the FDA prior to commercial launch. In November 1998, however, Align voluntarily
filed and subsequently received pre-market clearance by the FDA to market the
Invisalign system. Class II devices typically require pre-market clearance by
the FDA through the 510(k) pre-market notification process. As a result of this
corrected classification, firms that now wish to market aligners for general use
in the United States are required to obtain pre-market clearance from the FDA
prior to commercialization.

         Align currently possesses the necessary 510(k) clearance from the FDA
to continue to market its product under the Class II classification. Prior to
this classification correction, our product development, manufacturing
processes, packaging, labeling, handling, storage and distribution activities
were subject to extensive oversight by the FDA. Align believes its Invisalign
system is in compliance in all material respects with applicable quality system
regulations, record keeping and reporting requirements in the production and
distribution of the Invisalign system. Align does not anticipate any significant
difficulty or material cost increases in complying with applicable performance
standards as a result of the incremental regulatory requirements resulting from
the Class II classification.


Pursuant to the requirements of the Securities Exchange Act of 1934, as amended,
the registrant has duly caused this report to be signed on its behalf by the
undersigned hereunto duly authorized.

Dated: February 28, 2006             ALIGN TECHNOLOGY, INC.

                                     By: /s/ Roger E. George
                                         Roger E. George
                                         Vice President,
                                         Legal and Corporate Affairs,
                                         General Counsel and Corporate Secretary