NATICK, Mass.--(BUSINESS WIRE)--National Dentex Corporation (NASDAQ: NADX), one of the largest owner/operators of dental laboratories in the United States, today announced its results for the first quarter ended March 31, 2008. For the quarter, the Company reported $43,529,000 in sales with net income of $1,681,000, or $.30 per share on a diluted basis. Sales for the same quarter of the prior fiscal year were $43,343,000 and net income was $2,244,000 or $.40 per share on a diluted basis.