BECKER RICHARD F JR [Rocket]

Date	Name	Symbol	Type	Security	Shares	Price	Value	Reported
07/29/2010	NATIONAL DENTEX CORP /MA/	NADX	Disposition	Employee Stock Option (Right to Buy)	12k	$13.37	$160.4k	07/29/2010
07/29/2010	NATIONAL DENTEX CORP /MA/	NADX	Disposition	Employee Stock Option (Right to Buy)	18k	$16.45	$296.2k	07/29/2010
07/29/2010	NATIONAL DENTEX CORP /MA/	NADX	Disposition	Employee Stock Option (Right to Buy)	13.5k	$13.50	$182.2k	07/29/2010
07/29/2010	NATIONAL DENTEX CORP /MA/	NADX	Disposition	Common Stock $.01 par value	30.8k	$17.00	$523.2k	07/29/2010
07/29/2010	NATIONAL DENTEX CORP /MA/	NADX	Disposition	Employee Stock Option (Right to Buy)	26.7k	$12.00	$320k	07/29/2010
07/29/2010	NATIONAL DENTEX CORP /MA/	NADX	Disposition	Employee Stock Option (Right to Buy)	20k	$4.07	$81.4k	07/29/2010