StomatologyEduJournal1-2015 | Page 74

COMPUTERIZED DENTAL PROSTHETICS Figure 2. Final appearance of one digital zirconia core, just before its 3D milling. Patient number 1, tooth 25 Figure 3. Final appearance of one digital abutment prepared for 3d printing. Patient number 1, tooth 25 Figure 4. The printed abutment. Patient number 1, tooth 25 Figure 5. Magnification of the buccal surface of one printed tooth abutment (original magnification 2X). Patient number 2, tooth 16 Figure 6. Magnification of the occlusal surface of one printed abutment (original magnification 4X). Patient number 2, tooth 16 164 possible. Recontouring will result in an acceptable alteration of the anatomic form from the original anatomy.11 After the abutment teeth preparations were completed, the chairside interim restorations were fabricated and inserted with interim cement according to Tartaglia et al.12 The patient was asked to return after 2 weeks to allow time to evaluate both esthetics and function before the definitive impression appointment. The double-cord technique was used for soft tissue management during definitive impression making with polyether (Impregum/Permadyne, 3M ESPE AG, Seefeld, Germany) in a customized tray (Apex trays, Megadenta Dentalprodukte Radeberg, Germany). Interocclusal record registration was performed with rigid wax (Moyco Dental wax, Miltex, USA). The plaster models were prepared and digitized to identify and mark crown margins, virtual ditching and articulation. The crowns were designed from the digital library of the dental lab with minor modifications by the dental technician. STOMA.EDUJ (2015) 2 (2)