Veneer or crown? What is the better choice? Dr. Jan Hajto, Munich/Germany, demonstrates the indication, preparation and provisional restoration of veneers in the upper anterior jaw. In this case, tooth 11 shows considerable discoloration, which could not be sufficiently treated using internal bleaching procedures. For aesthetic reasons, the treatment plan also includes restoration of tooth 21 and 22 using veneers.
Dr. Hajto shows the limitations of veneer indications and explains why he has chosen an all-ceramic crown with a subgingival margin for a particular tooth, rather than a veneer. To begin with, the old, pre-existing composite fillings are removed and pin drilling performed with a view to inserting a glass fibre pin. The presentation then looks at the particular requirements and guidelines for the preparation of veneers, which should resemble a shrunken tooth in the vestibular area.
To ensure that the thickness of the material is even, take care that the labial surface remains curved. The boundary surfaces of the preparation here should be rounded in the enamel area as far as possible in order to ensure complete drainage for insertion and to facilitate an optimum adhesive bond between the enamel and the veneer.