Exhibit 99.1


                Certification Pursuant to 18 U.S.C. Section 1350
      As Adopted Pursuant to Section 906 of the Sarbanes-Oxley Act of 2002



     In connection with the Quarterly Report of National Dentex Corporation (the
"Company")  on Form 10-Q for the quarter  ending June 30, 2003 as filed with the
Securities and Exchange  Commission on the date hereof (the "Report"),  I, David
L. Brown,  President,  Chief  Executive  Officer,  and  Director of the Company,
certify,  pursuant to 18 U.S.C. Section 1350, as adopted pursuant to Section 906
of the Sarbanes-Oxley Act of 2002, that to my knowledge:


     (1) The Report fully  complies  with the  requirements  of Section 13(a) or
15(d) of the Securities Exchange Act of 1934; and

     (2)  The  information  contained  in the  Report  fairly  presents,  in all
material  respects,  the  financial  condition  and result of  operations of the
Company.




By:/s/ David L. Brown
   ------------------
David L. Brown
President, Chief Executive Officer and Director
August 12, 2003