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13 CASE STUDY Fig. 42: The crowns underwent full-contour modeling and were then pressed with the IPS e-max Press and stained. Fig. 44: The DVT after one year shows voluminous bone augmentation in regio 35, 36 that was stable and fully reconstructs the lost parts of the alveolar ridge. Fig. 43: At the follow-up after 12 months a recession could be seen around the implant in the upper jaw. The situation in the lower jaw is stable and free of irritation. AUTHOR [15] Mozzati M, Gallesio G, Gassino G, Palomba A, Bergamasco L. Can plasma rich in growth factors improve healing in patients who underwent radiotherapy for head and neck cancer? A split-mouth study. J Craniofac Surg. 2014 May;25(3):938-43 [16] Nishimura I, Shimizu Y, Ooya K. Effects of cortical bone perforation on experimental guided bone regeneration. Clin Oral Impl Res 2004; 15: 293-300 [17] Lang NP, Brägger U, Hämmerle CH, Sutter F. Immideate transmucosal implants using the principal of guided tissue regeneration. I. Rationale, clinical procedures and 30-month results. Clin Oral Implants Res 1994; 5: 154-63 [18] Linkevicius T, Apse P, Grybauakas S, Ouisys A. The influ- ence of soft tissue thickness on crestal bone changes around implants: a 1-year prospective controlled clinical trial. Int J Oral Maxillofac Implants. 2009 Jul-Aug; 24(4): 712-719 [19] Renvert S, Persson G. A systematic review on the use of residual probing depth, bleeding on probing and furcation status following initial periodontal therapy to predict further attachment and tooth loss. J Clin Periodontol 2002; 29 Suppl 3: 82-92 [20] Roos-Jansaker A, Renvert H, Lindahl C, Renvbert S. Nine- to fourteen-year follow-up of implant treatment. Part III: Fac- tors associated with peri-implant lesions. J Clin Periodontol 2006; 33: 296-301 [21] Rosenquist B. A comparison of various methods of soft tissue management following the immediate placement of implants into extraction sockets. Int J Oral Maxillofac Implants 1997; 12: 43-51 [22] Salvi G, Lang N. Diagnostic parameters for monitoring peri- implant conditions. Int J Oral Maxillofac Implants 2004; 19: 116-127 [23] Sullivan HC, Atkins JH. Free autogenous gingival grafts. I. Principles of successful grafting. Periodontics. 1968 Jun;6(3):121-9 [24] Vandeweghe S, De Bruyn H. Ein In-sich-Vergleich von Implantatabutments zur Bewertung des Platform-Switchings: eine randomisierte kontrollierte Studie. Eur J Oral Implantol. 2012 Autumn;5(3):253-62 [25] Von Arx T, Buser D. Horizontal ridge augmentation using autogenous block grafts and the guided bone regeneration technique with collagen membranes: a clinical study with 42 patients. Clin Oral Implantas Res 2006; 17(4): 359-66 [26] Wilson TG. The positive relationship between excess cement and peri-implant desease: a prospective clinical endo- scopic study. J. Peridontol 2009; 80: 1388-1392 [27] Wolf D1, Bindl A, Schmidlin PR, Lüthy H, Mörmann WH. Strength of CAD/CAM-generated esthetic ceramic molar implant crowns. Int J Oral Maxillofac Implants. 2008 Jul- Aug;23(4):609-17 [28] ZhangM, Powers RM Jr, Wolfinbarger L Jr. Effect of the demineralization process on the osteoinductivity of deminer- alized bone matrix. J Periodontol 1997; 68: 1085-92 Dr. Kai Zwanzig completed his dental studies between 1997 and 2002 at the Westfälische Wilhelms-Universität Münster and gradua- ted the following year. He then completed a year of general dentistry followed by training as a specialist in oral surgery. He specializes in the areas of implantology, bone augmentation procedures, perio- dontal plastic surgery, functional diagnostics, and full-ceramic resto- rations using CAD/CAM methods and intraoral scanning. In 2007 he founded his own joint practice in Bielefeld. Dr. Kai Zwanzig is the author of specialist dental articles on implantology and complex full-ceramic rehabilitations and is an international continuing edu- cation consultant. In 2012 Dr. Kai Zwanzig received a design prize for the construction of his new practice. He runs a visiting clinician and supervision practice selected by the DGI and is a member of the Leading Implant Center. Contact information Dr. Kai Zwanzig Praxis für Zahnheilkunde und Implantologie M auerstr. 8 D-33602 Bielefeld info@praxis-zwanzig.de www.praxis-zwanzig.de My heartfelt thanks to my team and particularly my two dental technicians MDT Rolf Eilers and Anna-Lena Ille (Kuhles & Berger Laboratory, Bielefeld) whose dedication contributed enormously to this great result.