A first molar with full crown preparation and three marginal configurations-chamfer, chisel, and shoulder with a bevel-was analyzed by the finite element method. The maximum, minimum, and shear stresses were plotted as a function of the radius along various horizontal planes. The chamfer geometry exhibited the most uniform stress distribution.
Peer Reviewed
http://deepblue.lib.umich.edu/bitstream/2027.42/67769/2/10.1177_00220345740530041701.pdf