Dental Tribune United Kingdom Edition

13Implant TribuneMay 7-13, 2012United Kingdom EditionUnited Kingdom Edition page 14DTà Astra Tech Ltd Tel: 0845 450 0586 Fax: 01453 791001 Web: www.astratechdental.co.uk Email: atlantisabutments@astratech.com Atlantis™ crown abutment is an efficient, effective and aesthetic alternative to traditional cast abutments for single-tooth, screw-retained restorations. Like Atlantis™ patient-specific CAD/CAM abutments for cement-retained restorations, the Atlantis crown abutment is uniquely designed from the final tooth shape for more natural aesthetic results and available for all major implant systems. It is also precision-milled from a solid blank of biocompatible zirconia, which eliminates the need to cast with precious metals. What’s more, because porcelain is applied directly to the Atlantis crown abutment, it can be easily retrieved, if needed, and the time and cost of preparing a separate coping is recaptured. Atlantis crown abutment is available in five shades, including a new translucent zirconia in white. It can be placed in all positions in the mouth and is covered by a comprehensive warranty. For more on the benefits of Atlantis™ screw- and cement- retained solutions, visit www.astratechdental.co.uk. Experience the freedom of unlimited possibilities. Experience Atlantis™ . Discover Atlantis™ crown abutment cated based on prosthetic re- quirements (functional, aes- thetic). A bone-anchored and prosthetic-oriented scan can be taken under radiological control owing to the unique fixation of the scan template using the interim implants. The thickness of the mu- cous membrane can be meas- ured by fitting the radio- opaque tooth along the plaster surface. The distance from holding sleeve to bone surface must not exceed 3.5mm. CAD/CAM was used to fabricate the bridge frame- work from a fibre composite (Everest C-Temp, KaVo) and veneered with an acrylic ma- terial. For passivation of the design, proven electroplating was used. Custom CAD/CAM- fabricated zirconia abutments were selected. Conclusion The original goal of the pros- thetic reconstruction was a fixed bridge restoration. Ow- ing to the hygienic and func- tional training phase with the long-term temporary appli- ance, the patient opted for a removable bridge. The accuracy and simplici- ty with which the implants can be inserted in prosthetically correct or anatomically dif- ficult situations is increased significantly by virtual 3-D implant planning using CBCT or CT in combination with the guided implant bed prepa- ration and implant insertion. Implant therapy is thus facili- tated. The drilling sequence in the CAMLOG Guide System is different from other systems. While in a conventional drill- ing sequence, the pilot drill is advanced to the final implant length, the drilling sequence guided by the CAMLOG Guide first starts with the shorter pilot drill (length six mm). To guide all drills by the sleeve geometry from the start, the drilling sequence is per- formed in succession from the nine to the 11mm drill and fi- nally to the 13mm drill (maxi- mum implant length). The CAMLOG Guide offers a sleeve system. As opposed to multi-sleeve systems, a single sleeve inserted into the surgi- cal template is adequate for guidance during all drilling se- quences and implantation pro- cedures. The implants can be inserted through the sleeves._ Editorial note: The case was first published in C Mairoana & M Beretta (eds.), Manual of Oral Implantology (Edizioni Italia Press, 2010) and is re- printed here with kind permis- sion. DT A complete list of references is available from the publisher. ‘The thickness of the mucous mem- brane can be meas- ured by fitting the radio-opaque tooth along the plaster surface’ Fig 13_Transversal view at 23 Fig 14_Transversal view at 17 Fig 15_All views at implant region 16. From left to right: lateral view with projection of the temporary implant in region 15, transversal view, panoramic anatomic view, occlusal view