Exhibit 99.1

            National Dentex Corporation Announces Sales and Earnings
                          for the Second Quarter 2007

     WAYLAND, Mass.--(BUSINESS WIRE)--Aug. 3, 2007--National Dentex Corporation
(NASDAQ: NADX), one of the largest owner/operators of dental laboratories in the
United States, today announced sales and earnings for the six months and second
quarter ended June 30, 2007. Sales for the quarter totaled $44,434,000 compared
with $38,116,000 a year earlier, an increase of 16.6%. Net income for the
quarter was $2,417,000 or $.43 per share on a diluted basis compared to
$2,320,000 or $.40 per share on a diluted basis in 2006.

     For the six months ended June 30, 2007, sales were $87,777,000 compared to
$74,905,000 for the same period in 2006, an increase of 17.2%. Net income for
the six months of 2007 increased to $4,661,000 or $.82 per share on a diluted
basis from $4,469,000 or $.78 per share on a diluted basis in the year-ago
period.

     David Brown, President and CEO stated: "We believe that the productivity
initiatives we began implementing during the first quarter of 2007 are beginning
to contribute positively to our operating results. During the quarter net income
increased $97,000 or 4.2%. Significantly, however, operating income increased
$530,000 or 12.2% over the same quarter in 2006. This brings the increase in net
income and operating income for the six months 2007 versus 2006 to $192,000 or
4.3% and $1,089,000 or 13.1%, respectively. We believe these trends will
continue as we persist in our efforts to better manage our labor requirements as
we implement and leverage new technology. Sales in the first half of 2007, while
up 17.2% were driven by our acquisitions from 2006. Internal sales, or sales at
laboratories owned over one year, declined 1.3%. We continue to aggressively
pursue acquisitions and remain focused on capitalizing on our Company's
strengths. To do this we intend to continue to differentiate our laboratories
through their local presence and their commitment to unsurpassed service, high
quality products and prompt delivery."

     About National Dentex

     National Dentex Corporation serves an active customer base of over 24,000
dentists through 48 dental laboratories located in 31 states and one Canadian
province. National Dentex's dental laboratories provide a full range of
custom-made dental prosthetic appliances, including dentures, crowns, and fixed
bridges, and other dental specialties.

     Safe Harbor Statement

     This press release contains forward-looking statements within the meaning
of the federal securities laws, including statements regarding our future sales
revenues, net income, operating income, operating results, acquisition activity,
marketplace competitiveness, opportunities, and expected courses of action, that
are based on our current expectations, beliefs, assumptions, estimates,
forecasts and projections about the industry and markets in which National
Dentex operates. The statements contained in this release are not guarantees of
future performance and involve certain risks, uncertainties and assumptions that
are difficult to predict. Therefore, actual outcomes and results may differ
materially from what is expressed in such forward-looking statements. Important
factors that may affect future operating results and acquisition activity
include the timing, duration and effects of adverse changes in overall economic
conditions and other developments that directly or indirectly affect consumer
decisions as to whether and when to have dental procedures performed; National
Dentex's ability to acquire new laboratories on terms and conditions acceptable
to it and its capacity to integrate and successfully operate previously acquired
laboratories; governmental regulation of health care; trends in the dental
industry towards managed care; increases in labor, benefits and material costs;
product development risks; technological innovations; competition from other
dental laboratories, including increased competition from dental laboratories
located in foreign countries with lower labor and benefit costs, such as China;
National Dentex's ability to attract, retain and motivate qualified personnel
particularly at a time of corporate realignment; changes in the cost or
availability of raw materials, particularly precious metals like gold, platinum
and palladium; any impairment in the carrying value of goodwill or other
acquired intangibles; compliance with evolving federal securities, accounting,
and marketplace rules and regulations applicable to publicly-traded companies on
the NASDAQ Global Market; and other risks indicated from time to time in
National Dentex's filings with the Securities and Exchange Commission,
particularly under Item 1A, "Risk Factors" of National Dentex's most recently
filed Annual Report on Form 10-K and subsequently filed Quarterly Reports on
Form 10-Q.


                     National Dentex Corporation
                           Earnings Results
                             (Unaudited)
                (In Thousands, except per share data)

                                       Quarter Ended  Six Months Ended
                                         June 30,         June 30,
                                      --------------- ----------------
                                        2006    2007     2006    2007
                                      ------- ------- -------- -------

Net Sales                             $38,116 $44,434  $74,905 $87,777
Cost of Goods Sold                     21,825  24,873   42,686  49,156
                                      ------- ------- -------- -------
   Gross Profit                        16,291  19,561   32,219  38,621

Operating Expenses                     11,946  14,686   23,913  29,226
                                      ------- ------- -------- -------
   Operating Income                     4,345   4,875    8,306   9,395

Other Expense                             227     223      438     398
Interest (Income) Expense                 281     754      570   1,481
                                      ------- ------- -------- -------
   Income Before Tax                    3,837   3,898    7,298   7,516

Income Taxes                            1,517   1,481    2,829   2,855
                                      ------- ------- -------- -------
   Net Income                         $ 2,320 $ 2,417  $ 4,469 $ 4,661
                                      ======= ======= ======== =======


Weighted Average
Shares Outstanding:
      - Basic                           5,493   5,536    5,462   5,523
      - Diluted                         5,774   5,666    5,750   5,654

Net Income per Share:
      - Basic                         $  0.42 $  0.44  $  0.82 $  0.84
      - Diluted                       $  0.40 $  0.43  $  0.78 $  0.82


                     National Dentex Corporation
                     Selected Balance Sheet Data
                             (Unaudited)
                            (In thousands)

                                                 December 31, June 30,
                                                     2006       2007
                                                 ------------ --------

Cash and Equivalents                                 $    648 $    570
Accounts Receivable - net                              17,938   18,613

Current Assets                                         29,052   30,834
Current Liabilities                                    22,820   22,904
                                                 ------------ --------
     Working Capital                                    6,232    7,930

Total Assets                                          148,490  150,496

Long Term Obligations                                  42,876   39,418
Stockholders' Equity                                 $ 82,794 $ 88,174


     CONTACT: National Dentex Corporation
              Richard F. Becker, 508-358-4422
              Executive Vice President, Treasurer