DENTAURUM GmbH & Co. KG +49 72 31 / 803-210
The disadvantage of shoulder attachments is the visible metal portion in the occlusal area of veneered crowns. As a modification the attachment can be milled without occlusal shoulder in connection with an extra-coronal attachment.
Wax-up with StarWax M.
Generally it is recommended to make a full wax-up with milling-wax for a perfect integration of the shoulder-attachment into the tooth shape.
Aligning the depth of the interlock.
Occlusal alignment of the interlock.
Control of the wall-thickness.
Wax-milling of the shoulder for the interlock with a shoulder-cutter.
Drilling the interlock with a twist-drill.
Opening the interlock with a scalpel.
Milling the shoulder-attachment and the cervical step.
Scraping the occlusal shoulder with a modelling instrument.