Disable Dynamic sidebar – twentyten theme

Hi,

I am using latest version of twentyten theme. I disabled Sidebar widget in particular page by adding below code in functions.php

add_filter( 'sidebars_widgets', 'disable_all_widgets' );

function disable_all_widgets( $sidebars_widgets ) {

	if ( is_page('25') )

		$sidebars_widgets = array( false );

	return $sidebars_widgets;

}

The sidebar widget is gone which I have added from Widget option which in under Appearance option, but still Dynamic sidebar is there, so how do I doable Dynamic sidebar as well?

Thanks