<prompt> Hollow ground bevel is?Knife edgeExaggerated chamferShoulderShoulder with bevel  <response>: Hollow ground concave bevel:Used when cusp required to cover with cast metalPrepared with 12 fluted round ended burProvide sufficient bulk of restoration at cavosurface marginIt is an exaggerated chamfer basicallyAlso known as concave bevelIn posterior ceramic restorations at cavosurface angle hollow-ground chamfer confined to the marginal enamel will aid in developing a more effective seal 