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May 17-23, 2010United Kingdom Edition Project1 6/5/10 16:29 Page 1 References 1. Bengazi F, Wennström JL, Lekholm U. Recession of the soft tissue margin at oral implants. A 2-year longitudinal prospective study. Clin. Oral Impl. Res. 1996; 7: 303-310. 2. Saadoun AP, LeGall M, Touati B. Selection and ideal tridimensional implant position for soft tissue aesthetics. Pract Periodontal Aesthet Dent 1999;11(9):1063-1072. 3. Grunder U, Gracis S, Capelli M. Influence of the 3-D bone-to- implant relationship on esthetics. Int J Periodontics Restorative Dent. 2005 Apr;25(2):113-9. 4. Abrahamsson I, Berglundh T, Glantz PO, Lindhe J. The mucosal attachment at different abutments. An experimental study in dogs. J Clin Periodontol. 1998 Sep; 25(9):721-7. 5. Abrahamsson I, Berglundh T, Lindhe J. The mucosal barrier following abutment dis/reconnection. An experimental study in dogs. J Clin Periodontol. 1997 Aug;24(8):568-72. 6. Hermann JS, Buser D, Schenk RK, Higginbottom FL, Cochran DL. Biologic width around titanium implants. A physiologically formed and stable dimension over time. Clin Oral Implants Res. 2000 Feb;11(1):1-11. 7. Hermann JS, Buser D, Schenk RK, Schoolfield JD, Cochran DL. Biologic Width around one- and two-piece titanium implants. Clin Oral Implants Res. 2001 Dec;12(6):559-71. 8. Grunder U. Stability of the mucosal topography around single-tooth implants and adjacent teeth: 1-year results. Int J Periodontics Restorative Dent. 2000 Feb;20(1):11-7. 9. Kan JYK, Rungcharassaeng K, Klyotaka U, Kols JC. Dimensions of Peri-Im- plant Mucosa: An Evaluation of Maxillary Anterior Single Implants in Humans. J Periodontol 2003; 74: 557-562. 10. Degidi M, Artese L, Scarano A, Perrotti V, Gehrke P, Piattelli A.J Inflammatory infiltrate, microvessel density, nitric oxide synthase expression, vascular endothelial growth factor expression, and proliferative activity in peri-implant soft tissues around titanium and zirconium oxide healing caps. Periodontol. 2006 Jan;77(1):73-80. 11. Rimondini L, Cerroni L, Carrassi A, Torricelli P. Bacterial colonization of zirconia ceramic surfaces: an in vitro and in vivo study. Int J Oral Maxillofac Implants. 2002 Nov-Dec;17(6):793-8. 12. Welander M, Abrahamsson I, Ber- glundh T. The mucosal barrier at implant abutments of different materials. Clin. Oral Impl. Res. 19, 2008; 635–641. 13. Baumgarten H, Cocchetto R, Testori T, Meltzer A, Porter S. A new implant design for crestal bone preservation: initial observations and case report. Pract Proced Aesthet Dent. 2005 Nov-Dec;17(10):735-40. 14. Lazzara RJ, Porter SS. Platform switching: a new concept in implant dentistry for controlling postrestorative crestal bone levels. Int J Periodontics Restorative Dent. 2006 Feb;26(1):9-17. 15. Shin YK, Han CH, Heo SJ, Kim S, Chun HJ. Radiographic evaluation of marginal bone level around implants with different neck designs after 1 year. Int J Oral Maxil- lofac Implants. 2006 Sep-Oct;21(5):789-94. 16. Nowzari et al. Immunology, microbiology, and virology following placement of NobelPer- fect scalloped dental implants: analysis of a case series. Clinical implant dentistry and related research (2008) vol. 10 (3) pp. 157-65. 17. Bianchi AE, Sanfilippo F. Single-tooth replacement by immediate implant and connective tissue graft: a 1-9-year clinical evaluation.Clin Oral Implants Res. 2004 Jun;15(3):269-77. 18. Kan JY, Rungcharassaeng K, Lozada JL. Bilaminar subepithelial connective tissue grafts for immediate implant placement and provisionalization in the esthetic zone. J Calif Dent Assoc. 2005 Nov;33(11):865-71. 19. Wohrle PS. Nobel Perfect esthetic scalloped implant: rationale for a new design. Clin Implant Dent Relat Res. 2003;5 Suppl 1:64-73. 20. Chou CT, Morris HF, Ochi S, Walker L, DesRosiers D. AICRG, Part II: Crestal bone loss associated with the Ankylos implant: loading to 36 months. J Oral Implantol. 2004;30(3):134-43. 21. Norton MR. Multiple single-tooth implant restorations in the posterior jaws: maintenance of marginal bone levels with reference to the implant-abutment microgap. Int J Oral Maxillofac Implants. 2006 Sep-Oct;21(5):777-84. 22. Rompen E, Raepsaet N, Domken O, Touati B, Van Dooren E. Soft tissue stability at the facial aspect of gingivally converging abut- ments in the esthetic zone: a pilot clinical study. The Journal of prosthetic dentistry (2007) vol. 97 (6 Suppl) pp. S119-25. 23. Mankoo T. Single tooth implant restorations in the aesthetic zone – Contemporary concepts for optimization and maintenance of soft tissue esthetics in replacement of failing teeth in compromised sites. Eur J Esthet Dent 2007;2:274-295. Fig 7. Verification of bio- logic width during osseous recontouring for crown lengthening. Fig 8. Ideal positioning of the implant, 3mm apical and 2mm palatal to the desired final gingival margin. Fig 9. Anorganic bone min- eral grafted to augment the labial bone contours. Fig 10. Resorbable mem- brane in place. Note good labial contours. Fig 11. Good primary closure achieved and me- ticulous suturing of the flap using 6-0 mono-filament polypropylene sutures. Note the recontoured gingival margins. Fig 12. Provisional crowns and bridge after healing and maturation of soft tissue, and tooth preparation and relining. Fig 13. Radiograph of the implant with provisional bridge in place. Fig 14. The case just before final impres- sions with retraction cord in situ. Fig 15. Occlusal view of healing abutment showing excellent labial contours and tissue thickness. Fig 16. Close-up occlusal view with the healing abut- ment removed to show the thick labial. Fig 17. An example of a custom zirconia abutment as was used in this case showing the correct design with a scalloped margin to facilitate cementation of the crown. The implant abut- ment connection lends itself to creation of a natural transmucosal under-contour which enhances the tissue thickness in this critical area. Fig 18. Final result at two month follow up. Note improved crown pro- portions and good restora- tion of soft tissue contours around the implant restoration. Fig 19. Final radiograph. Fig 20. Close up view of the final result. Fig 7. Fig 12. Fig 10. Fig 15. Fig 17. Fig 19. Fig 8. Fig 13. Fig 11. Fig 16. Fig 18. Fig 20. Fig 9. Fig 14.