The present invention concerns a blank (2') from which a dental prosthesis (32) can be formed. The blank (2') comprises a main body portion (4), the main body portion having an axis of elongation (10), a first end (11) and a second end (17)； a registration portion (13) at the first end (11), for aligning, in use, the dental prosthesis (32) in a precise position and/or orientation on an implant； and an attachment portion (6') at the second end (17), the attachment portion including a first bore (34) for enabling secure attachment of the blank (2') to a holder (56) having a holder axis while the blank (2') is milled and/or machined and an attachment axis (36) is being defined by the first bore (34), said attachment axis (36) coinciding with the holder axis. The attachment axis (36) is at an angle to the axis of elongation (10) so that the axis of elongation (10) of the blank (2') is at an angle to the holder axis when the blank (2') is attached to the holder (56). A method of manufacturing a dental prosthesis (32) form said providing a blank (2') is also disclosed.本發明關注一種可自其形成一義齒（32）之坯料（2'）。該坯料（2'）包含一主體部分（4），該主體部分具有一伸長軸線（10）、一第一端（11）及一第二端（17）；在該第一端（11）處之一對齊部分（13），其在使用中用於將該義齒（32）以一精確定位及/或定向對準於一植入物上；及在該第二端（17）處之一附接部分（6'），該附接部分包括用於在研磨及/或機械加工該坯料（2'）時，可使該坯料（2'）牢固地附接至具有一固持器軸線之一固持器（56）的一第一孔（34），且一附接軸線（36）由該第一孔（34）界定，該附接軸線（36）與該固持器軸線一致。該附接軸線（36）與該伸長軸線（10）成一角度，從而使得當將該坯料（2'）附接至該固持器（56）時，該坯料（2'）之該伸長軸線（10）與該固持器軸線成一角度。本發明亦揭示一種自提供之一坯料（2'）製造一義齒（32）之方法。
