摘要 |
The present disclosure provides for a dental mill blank and a method of forming the dental mill blank. The dental mill blank includes a first layer (102) of a first hard restorative material having a first translucency and a first shade, a second layer (104) of a second hard restorative material having a second translucency and a second shade, where at least one of the following is true: the first translucency is different from the second translucency, the first shade is different from the second shade. The first layer (102) and the second layer (104) form a first interface having a first curve (112) across a first plane of symmetry (114) of the dental mill blank, where the first curve (112) has a different from zero curvature; and a first straight line (122) along the entire length of a second plane (118) of the dental mill blank, the second plane (118) being orthogonal to the first plane of symmetry (114). |
申请人 |
3M INNOVATIVE PROPERTIES COMPANY |
发明人 |
ROLF, JACQUELINE C.;RUSIN, RICHARD P.;NORMAN, COLIN F.;GUSTAFSON, MELINDA B.;HAMER, JAMES D.;CARTER, CHARLES G.;BOEHMER, ROXANNE A.;HOLMES, BRIAN N.;WALDROP, TARA;HAISLET, BRADY P. |