SANTA CLARA, Calif., March 3, 2005 /PRNewswire-FirstCall via COMTEX/ -- Align Technology, Inc. (Nasdaq: ALGN), the inventor of Invisalign®, a proprietary method of straightening teeth without wires and brackets, today announced that subsequent to the January 26, 2005 earnings announcement, a write-off in fixed assets at an international manufacturing facility yielded a minor change to Q4 and fiscal year 2004 net income. Both basic and diluted earnings per share (EPS) remain the same.

As the Company explains in the Annual Report on Form 10-K filed with the Securities and Exchange Commission on March 3, 2005, costs of revenues were adjusted to include an additional $383,000 resulting from the write-off of manufacturing fixed assets identified by the Company at an international manufacturing facility. Net profit for the quarter and year ended December 31, 2004 was therefore reduced by $383,000, and there was no change to basic or diluted EPS.

The reconciliation for the quarter and for the year ending December 31, 2004 as outlined in the Annual Report on Form 10-K is as follows (in thousands, except per share data):

For the quarter ended December 31, 2004



                                                                 Reported in
                                  Previously       Increase        Annual
                                  Announced       (Decrease)       Report



    Consolidated Statement of
     Operations Data:
    Cost of revenues                $14,578            $383      $ 14,961
    Operating profit                  1,039           (383)           656
    GAAP Net profit                   1,504           (383)         1,121
    Basic and fully diluted
     GAAP EPS                         $0.02           $0.00         $0.02





    For the year ended December 31, 2004
                                                                 Reported in
                                  Previously       Increase        Annual
                                  Announced       (Decrease)       Report



    Consolidated Statement of
     Operations Data:
    Cost of revenues                $57,143            $383      $ 57,526
    Operating profit                 10,148           (383)         9,765
    Net profit                        9,151           (383)         8,768
    Basic GAAP EPS                    $0.15           $0.00         $0.15
    Fully diluted GAAP EPS            $0.14           $0.00         $0.14

Net profit includes stock-based compensation expense of $0.2 million and $5.6 million for the fourth quarter and fiscal year 2004, respectively.

About Align Technology, Inc.

Align Technology designs, manufactures and markets Invisalign, a proprietary method for treating malocclusion, or the misalignment of teeth. Invisalign corrects malocclusion using a series of clear, nearly invisible, removable appliances that gently move teeth to a desired final position. Because it does not rely on the use of metal or ceramic brackets and wires, Invisalign significantly reduces the aesthetic and other limitations associated with braces. Invisalign is appropriate for treating adults and older teens. Align Technology was founded in March 1997 and received FDA clearance to market Invisalign in 1998.

To learn more about Invisalign or to find a certified Invisalign doctor in your area, please visit www.invisalign.com or call 1-800-INVISIBLE.

Investor Relations Contact              Press Contact
     Barbara Domingo                         Shannon Mangum Henderson
     Align Technology, Inc.                  Ethos Communication, Inc.
     408-470-1000                            678-417-1767
     investorinfo@aligntech.com              shannon@ethoscommunication.com

SOURCE Align Technology, Inc.

Barbara Domingo of Align Technology, Inc., +1-408-470-1000, or investorinfo@aligntech.com; or Shannon Mangum Henderson of Ethos Communication, Inc. +1-678-417-1767, or shannon@ethoscommunication.com, for Align Technology, Inc.