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ePaper created 2015-03-04, 10:43:31 | version 1.33.01
I case report Fig. 1_Regio 13, initial clinical situation. Fig. 2_Regio 13, horizontal incision. Fig. 3_Regio 13, de-epithelialisation and preparation of triangles. Fig. 4_Regio 13, vertical incisions. _Nowadays, increasing patient demand for covering of gingival recessions has resulted in growing interest in improved treatment options. In recentdecades,recessioncoveragebythecombina- tion of a connective tissue graft (CTG) with various flaptechniques(envelopetechnique,laterallyrepo- sitioned flap, coronally repositioned flap, tunnel technique) has become the standard treatment of recessions, providing very good results with regard to aesthetics and function. Compared with a free gingivalgraft,theCTGofferstheadvantageofgood adaptation to the gingival colour, a minimal risk of keloid formation and the possibility of closing the palatal harvesting site, thereby minimising the risk of post-operative complications and bleeding. The shortageofdonortissueisasignificantlimitationof the CTG. Furthermore, it is a delicate technique that requiresprofoundsurgicalexperience,sinceitposes the risk of injury to the palatine artery. Even though theend-resultsareoftensatisfying,thesecondsur- gical intervention at the palatal harvesting site has low patient acceptance. 12 I implants1_2015 Gingival recessions using a 3-D collagen matrix Author_Prof. Dr Gregor-Georg Zafiropoulos, Germany Fig. 1 Fig. 2 Fig. 3 Fig. 4