<prompt> Overall optimum degree of taper of tooth preparation for maxillary anterior tooth is:6 degrees10 degrees14 degrees19 degrees  <response>: For anterior preparations, 10 degree taper is recommended.For cast preparations, 6 degree taper is optimum.Ref: Stephen Rosenstiel, Martin Land, and Junhei Fujimoto, Contemporary Fixed Prosthodontics 5th Edition 