<PAGE 13> EXHIBIT 23.1 CONSENT OF INDEPENDENT PUBLIC ACCOUNTANTS To National Dentex Corporation: As independent public accountants, we hereby consent to the incorporation by reference in the Registration Statement on Form S-8, pertaining to National Dentex Corporation's 1992 Long Term Incentive Plan, of our report dated February 6, 1997 on the financial statements included in the 1996 Annual report on Form 10-K for the year ended December 31, 1996 and to all references to our Firm included in this registration statement. /s/ ARTHUR ANDERSEN LLP Boston, Massachusetts June 5, 1997